CN203237027U - Hybrid power assembly system for vehicles - Google Patents

Abstract

The utility model discloses a vehicle hybrid powertrain system, which comprises an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery; the system adopts a The single planetary row structure realizes the functions of the hybrid powertrain system with double planetary row functions, which is easy to design and process, which is conducive to reducing manufacturing costs, reducing the failure rate of planetary row, and solving problems such as oil leakage and sealing of gearboxes; the system can realize hybrid Power, pure electric, brake feedback, in-situ power generation, grid charging five working modes to achieve energy saving and emission reduction of vehicles.

Description

A hybrid powertrain system for a vehicle

technical field

The utility model The utility model relates to a hybrid power assembly system, in particular to a vehicle hybrid power assembly system for a hybrid hybrid vehicle.

Background technique

Hybrid electric vehicles have become the development direction of clean and efficient vehicles, one of the best ways to solve environmental protection and energy-saving problems, and an inevitable choice for the sustainable development of my country's automobile industry. Hybrid vehicles using traditional internal combustion engines and battery-motors as power systems have become a hot research topic in automotive power system technology due to their advantages of low energy consumption and low emissions. Hybrid vehicles use two kinds of power sources as power devices, and its various components, layout methods and control strategies are different, thus forming a variety of structural types. There are also many ways to classify hybrid vehicles. According to the number of power sources and the power transmission mode, it can be divided into series type, parallel type and hybrid type. Among them, the series type and parallel type have low energy saving rate due to their own structural limitations, or the application occasions are greatly restricted, and the market share has been declining year by year. The hybrid type is currently the mainstream of research and market. There are different types of existing series-connected hybrid powertrains, and the most typical one is a split system based on a two-degree-of-freedom planetary split-merge mechanism, as shown in Figure 1, Toyota's THS hybrid powertrain system. There are also some hybrid types based on the planetary row type, in order to reduce the volume and weight of the electric motor, a double planetary row structure is adopted. However, the design and manufacture of the planetary row, especially the rear planetary row needs to work under high-speed and high-torque conditions, which puts forward high requirements for its design and manufacture, which is the main reason for the high manufacturing cost and high failure rate of this type of structure. In addition, on some power units that use rear-wheel drive models, the double planetary row structure needs to be made into a hollow shaft motor so that the power output shaft can pass through, resulting in a complex structure of the motor shaft. Due to the high-speed rotation of the motor, the lubricant seal of the gearbox Problems are also difficult to solve.

Contents of the invention

In view of the above problems, the utility model provides a hybrid powertrain system, a hybrid powertrain system based on a single planetary row structure to realize the function of a double planetary row, which is suitable for light, medium and heavy hybrid powertrains Vehicle use requirements, easy design and processing, which is beneficial to reduce manufacturing costs, reduce planetary failure rate, and solve problems such as oil leakage and sealing of gearboxes.

In order to solve the problems of the technologies described above, the first technical scheme realized by the utility model is:

A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes a clutch, Brake, engine output shaft, second motor driving gear, sun gear, ring gear, planet carrier, planetary gear, power output shaft, second motor output shaft, second motor coupling, first motor driven gear, transmission shaft shaft coupling, first motor driving gear, first motor coupling, first motor output shaft, central shaft, second motor driven gear; wherein: the powertrain controller controls the engine, the power The battery, the controller of the power coupling device and the motor controller are controlled, and the motor controller controls the work of the first motor and the second motor; the power coupling device realizes the engine power, The coupling of the power of the first motor and the power of the second motor; one end of the output shaft of the engine is connected to the clutch, the other end is connected to the planetary carrier, and one of the brakes is connected to the output shaft of the engine; One end of the power output shaft outputs driving force through a transmission shaft coupling, and the other end is connected to the ring gear; the first motor is coupled to the output shaft of the first motor through the first motor coupling; the The second motor is coupled to the output shaft of the second motor through the second motor coupling; the driving gear of the first motor is on the output shaft of the first motor, and the driven gear of the first motor is on the output shaft of the first motor. On the power output shaft, the driven gear of the first motor is in constant mesh with the driving gear of the first motor; the driving gear of the second motor is on the output shaft of the second motor, and the driven gear of the second motor On the central shaft, the driven gear of the second motor is in constant mesh with the driving gear of the second motor; , the second motor is connected to the driven gear; the first motor and the second motor can be used as a motor or a generator; the clutch is used to control the output and interruption of the engine power, The brake is used for braking the engine output shaft and the planetary carrier; the first motor and the second motor are arranged on the same side or the opposite side of the power coupling device; the power of the assembly is output through the power output the shaft is axially output to the drive axle;

When the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, the engine power reaches the planetary carrier through the clutch and the engine output shaft, and part of the power passes through the The ring gear is then transmitted to the power output shaft to drive the vehicle, and the other part of the power passes through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, and the second motor. The motor output shaft and the second motor coupling drive the second motor to generate electricity, and the electric energy is stored in the power battery for use when the first motor is driven; when the power of the engine cannot meet the needs, the The first motor works as a motor, and its power passes through the first motor coupling, the first motor output shaft, the first motor driving gear, the first motor driven gear, the power output The shaft output assists in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle is transferred from the wheel, the drive axle, the drive shaft coupling, the power output shaft, and the first motor to The driving gear, the driving gear of the first motor, the output shaft of the first motor, and the coupling of the first motor drive the first motor to generate electricity, and its electric energy is stored in the power battery, so as to realize the braking of the vehicle feedback mode;

When the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and its power passes through the first The motor coupling, the output shaft of the first motor, the driving gear of the first motor, the driven gear of the first motor, and the output shaft of the power drive the vehicle; when the power provided by the first motor cannot meet the When the vehicle needs, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, the second motor also works as a motor, and its power passes through the second motor coupling, the second motor The output shaft, the driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, and the power output shaft are output from the first The power coupling of a motor drives the vehicle together, so as to realize the pure electric mode of the vehicle;

When the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch is engaged, the brake is released, the engine power passes through the clutch, the engine output shaft, the planet carrier transmitted to the planetary gear, and then through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, the output shaft of the second motor, the coupling of the second motor The shaft is transmitted to the second motor to drive the second motor to generate electricity, and its electric energy is stored in the power battery, thereby realizing the in-situ power generation mode of the vehicle;

When the vehicle is stopped at night, the power battery of the vehicle is directly charged by using grid electric energy to save fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle.

In order to solve the above-mentioned technical problems, the second technical scheme realized by the utility model is:

A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes a clutch, Brake, engine output shaft, driving gear of the first motor, driven gear of the first motor, sun gear, ring gear, planet carrier, planetary gear, power output shaft, output shaft of the first motor, coupling of the first motor, transmission shaft shaft coupling; wherein: the powertrain controller controls the engine, the power battery, the controller of the power coupling device and the motor controller, and the motor controller controls the first The work of the motor and the second motor; the power coupling device realizes the coupling of the engine power, the first motor power and the second motor power; one end of the engine output shaft is connected to the clutch, and the other end The planet carrier is connected, and one of the brakes is connected to the output shaft of the engine; one end of the power output shaft outputs driving force through a transmission shaft coupling, and the other end is connected with the ring gear;

The first motor is coupled to the output shaft of the first motor through the first motor coupling, the driving gear of the first motor is on the output shaft of the first motor, and the driven gear of the first motor On the power output shaft, the driven gear of the first motor is in constant mesh with the driving gear of the first motor; the rotor shaft of the second motor is connected to the sun gear; the first motor is arranged on the Outside the housing of the power coupling device, the second motor is arranged outside the housing of the power coupling device, and the two motors can be used as motors or generators; the clutch is used to control the output of the engine power and interruption, the brake is used for braking the engine output shaft and the planet carrier; the first motor and the engine can be arranged on the same side or different sides of the power coupling device; the power of the assembly passes through the The power take-off shaft is axially output to the drive axle;

When the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, the engine power passes through the clutch and the engine output shaft to the planetary carrier, and part of the power passes through the The ring gear is further transmitted to the power output shaft to drive the vehicle, and another part of the power is driven by the sun gear to drive the second motor to generate electricity, and its electric energy is stored in the power battery for use when the first motor is driven; When the power of the engine cannot meet the needs, the first motor works as an electric motor, and its power passes through the coupling of the first motor, the output shaft of the first motor, the driving gear of the first motor, the The driven gear of the first motor and the output of the power output shaft assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle is transferred from the wheel, the drive axle, the drive shaft coupling, the power output shaft, and the first motor to The driving gear, the driving gear of the first motor, the output shaft of the first motor, and the coupling of the first motor drive the first motor to generate electricity, and its electric energy is stored in the power battery, so as to realize the braking of the vehicle feedback mode;

When the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and its power passes through the first The motor coupling, the output shaft of the first motor, the driving gear of the first motor, the driven gear of the first motor, and the output shaft of the power drive the vehicle; when the power provided by the first motor cannot meet the When the vehicle needs, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, and the second motor also works as a motor, and its power passes through the sun gear, the planet gear, and the ring gear . The output of the power output shaft drives the vehicle together with the power coupling from the first motor, so as to realize the pure electric mode of the vehicle;

When the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch is engaged, the brake is released, the engine power passes through the clutch, the engine output shaft, the planet carrier Transmission to the planetary gear, and then drive the second motor to generate electricity through the sun gear, and its electric energy is stored in the power battery, so as to realize the in-situ power generation mode of the vehicle;

When the vehicle is stopped at night, the power battery of the vehicle is directly charged by using grid electric energy to save fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle.

In order to solve the above-mentioned technical problems, the third technical scheme realized by the utility model is:

A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes a clutch, Brake, engine output shaft, second motor driving gear, sun gear, ring gear, planet carrier, planetary gear, power output shaft, second motor output shaft, second motor coupling, drive shaft coupling, center shaft, The driven gear of the second motor; wherein: the powertrain controller controls the engine, the power battery, the controller of the power coupling device and the motor controller, and the motor controller controls all The work of the first motor and the second motor; the power coupling device realizes the coupling of the power of the engine, the power of the first motor and the power of the second motor; one end of the output shaft of the engine is connected to the clutch , the other end is connected to the planet carrier, and one of the brakes is also connected to the output shaft of the engine; one end of the power output shaft is connected to the first motor, and the other end is connected to the ring gear; the second motor Connected to the output shaft of the second motor through the coupling of the second motor; the driving gear of the second motor is on the output shaft of the second motor, and the driven gear of the second motor is on the central shaft Above, the driven gear of the second motor is in constant mesh with the driving gear of the second motor; The motor is connected to the driven gear; the first motor and the second motor can be used as a motor or a generator; the clutch is used to control the output and interruption of the engine power, and the brake is used to The engine output shaft and the planetary carrier are braked; the first motor is connected in series between the power output shaft and the drive axle, and the second motor and the engine can be arranged on the power coupling device On the same side or on the opposite side; the power of the assembly is axially output to the drive axle through the power output shaft;

When the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, the engine power passes through the clutch and the engine output shaft to the planetary carrier, and part of the power passes through the The ring gear is then transmitted to the power output shaft to drive the vehicle, and another part of the power passes through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, and the second motor The output shaft and the second motor coupling drive the second motor to generate electricity, and the electric energy is stored in the power battery for use when the first motor is driven; when the power of the engine cannot meet the needs, the The first motor works as an electric motor, and the power is directly output to assist in driving the vehicle, so as to realize the hybrid mode of the vehicle;

When the vehicle brakes, the clutch is released, the engine no longer outputs power, the kinetic energy of the vehicle passes through the wheels, the drive axle, and drives the first motor to generate electricity, and the electric energy is stored in the power battery, so as to realize the power of the vehicle Brake feedback mode;

When the electric power of the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and the power is directly output to drive the vehicle; When the power provided by the first motor cannot meet the needs of the vehicle, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, and the second motor also works as a motor, and its power passes through the second motor. motor coupling, the output shaft of the second motor, the driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, the The power output shaft is output, and drives the vehicle together with the power coupling from the first motor, so as to realize the pure electric mode of the vehicle;

When the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch is engaged, the brake is released, the engine power passes through the clutch, the engine output shaft, the planet carrier transmitted to the planetary gear, and then through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, the output shaft of the second motor, the coupling of the second motor The shaft is transmitted to the second motor to drive the second motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing the in-situ power generation mode of the vehicle;

When the vehicle is stopped at night, the power battery of the vehicle is directly charged by using grid electric energy to save fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle.

In order to solve the above-mentioned technical problems, the fourth technical scheme realized by the utility model is:

A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes a clutch, Brake, engine output shaft, second motor driving gear, sun gear, ring gear, planet carrier, planetary gear, power output shaft, second motor output shaft, second motor coupling, first motor driven gear, first Motor driving gear, first motor coupling, first motor output shaft, central shaft, and second motor driven gear; wherein: the powertrain controller controls the engine, the power battery, and the power coupling The controller of the device is controlled by the motor controller, and the motor controller controls the work of the first motor and the second motor; the power coupling device realizes the power of the engine and the power of the first motor Coupling with the power of the second motor; one end of the engine output shaft is connected to the clutch, the other end is connected to the planetary carrier, and one of the brakes is also connected to the engine output shaft; one end of the power output shaft passes through a bearing Supported on the housing, the other end is connected with the ring gear;

The first motor is coupled to the output shaft of the first motor through the first motor coupling; the second motor is coupled to the output shaft of the second motor through the second motor coupling; The driving gear of the first motor is on the output shaft of the first motor, the driven gear of the first motor is on the output shaft of the power, the driven gear of the first motor is in common with the driving gear of the first motor meshing; the driving gear of the second motor is on the output shaft of the second motor, the driven gear of the second motor is on the central shaft, the driven gear of the second motor is connected to the driving gear of the second motor constant meshing; the central shaft is a hollow shaft, which is sleeved on the output shaft of the engine and connected with the sun gear and the driven gear of the second motor; the first motor and the second motor are both It can be used as a motor or as a generator; the clutch is used to control the output and interruption of the engine power, and the brake is used for braking the engine output shaft and the planet carrier; the first motor and the second motor are arranged on the same side or the opposite side of the power coupling device; power is transmitted between the power output shaft and the drive axle through a gear pair or a chain, and the power of the assembly is radially transmitted through the power output shaft output to the drive axle;

When the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, the engine power passes through the clutch and the engine output shaft to the planetary carrier, and part of the power passes through the The ring gear is further transmitted to the power output shaft to drive the vehicle radially, and another part of the power passes through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, and the driven gear of the second motor. The output shaft of the second motor and the coupling of the second motor drive the second motor to generate electricity, and the electric energy is stored in the power battery for use when the first motor is driven; when the power of the engine cannot meet the needs , the first motor works as a motor, and its power passes through the first motor coupling, the first motor output shaft, the first motor driving gear, the first motor driven gear, the The output of the power take-off shaft assists in driving the vehicle, so as to realize the hybrid mode of the vehicle;

When the vehicle brakes, the clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle, the power output shaft, the first motor driven gear, and the first motor. The driving gear, the output shaft of the first motor, and the coupling of the first motor drive the first motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing the braking feedback mode of the vehicle;

When the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and its power passes through the first The motor coupling, the output shaft of the first motor, the driving gear of the first motor, the driven gear of the first motor, and the output shaft of the power drive the vehicle; when the power provided by the first motor cannot meet the When the vehicle needs, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, the second motor also works as a motor, and its power passes through the second motor coupling, the second motor The output shaft, the driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, and the power output shaft are output from the first The power coupling of a motor drives the vehicle together, so as to realize the pure electric mode of the vehicle;

When the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch is engaged, the brake is released, the engine power passes through the clutch, the engine output shaft, the planet carrier transmitted to the planetary gear, and then through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, the output shaft of the second motor, the coupling of the second motor The shaft is transmitted to the second motor to drive the second motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing the in-situ power generation mode of the vehicle;

When the vehicle is stopped at night, the power battery of the vehicle is directly charged by using grid electric energy to save fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle.

In order to solve the above-mentioned technical problems, the fifth technical scheme realized by the utility model is:

A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes a clutch, Brake, engine output shaft, driving gear of the first motor, driven gear of the first motor, sun gear, ring gear, planet carrier, planetary gear, power output shaft, center shaft; wherein: the powertrain controller controls the The engine, the power battery, the controller of the power coupling device and the motor controller are controlled, and the motor controller controls the work of the first motor and the second motor; the power coupling device realizes The engine power is coupled with the first motor power and the second motor power; one end of the engine output shaft is connected to the clutch, the other end is connected to the planetary carrier, and the engine output shaft is also connected to a The brake; one end of the power output shaft is supported on the housing through a bearing, and the other end is connected with the ring gear;

The first motor is coupled to the output shaft of the first motor through the first motor coupling, the driving gear of the first motor is on the output shaft of the first motor, and the driven gear of the first motor On the power output shaft, the driven gear of the first motor is in constant mesh with the driving gear of the first motor; the rotor of the second motor is connected to the sun gear; the first motor is arranged on the Outside the housing of the power coupling device, the second motor is arranged in the housing of the power coupling device, and the two motors can be used as motors or generators; the clutch is used to control the output of the engine power and interruption, the brake is used for braking the engine output shaft and the planet carrier; the first motor and the engine can be arranged on the same side or different sides of the power coupling device; the power output shaft follows The drive axles transmit power through gear pairs or chains, and the assembly power is radially output to the drive axles through the power output shaft;

When the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, the engine power passes through the clutch and the engine output shaft to the planetary carrier, and part of the power passes through the The ring gear is then transmitted to the power output shaft to drive the vehicle, and another part of the power is driven by the sun gear to drive the second motor to generate electricity, and the electric energy is stored in the power battery for use when the first motor is driven; When the power of the engine cannot meet the requirements, the first motor works as an electric motor, and its power passes through the coupling of the first motor, the output shaft of the first motor, the driving gear of the first motor, and the first motor. A motor driven gear, and the output of the power output shaft assists in driving the vehicle, so as to realize the hybrid mode of the vehicle;

When the vehicle brakes, the clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle, the power output shaft, the first motor driven gear, and the first motor. The driving gear, the output shaft of the first motor, and the coupling of the first motor drive the first motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing the braking feedback mode of the vehicle;

When the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and its power passes through the first The motor coupling, the output shaft of the first motor, the driving gear of the first motor, the driven gear of the first motor, and the output shaft of the power drive the vehicle; when the power provided by the first motor cannot meet the When the vehicle needs, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, the second motor also works as a motor, and the power passes through the sun gear, the planetary gear, the ring gear, The output of the power output shaft drives the vehicle together with the power coupling from the first motor, so as to realize the pure electric mode of the vehicle;

When the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch is engaged, the brake is released, the engine power passes through the clutch, the engine output shaft, the planet carrier It is transmitted to the planetary wheel, and then the second motor is driven to generate electricity through the sun wheel, and the electric energy is stored in the power battery, so as to realize the in-situ power generation mode of the vehicle; The power battery of the vehicle is charged to save the fuel consumption of the engine, so as to realize the grid charging mode of the vehicle.

In order to solve the above-mentioned technical problems, the sixth technical scheme realized by the utility model is:

A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes a clutch, Brake, engine output shaft, second motor driving gear, sun gear, ring gear, planet carrier, planetary gear, power output shaft, second motor output shaft, second motor coupling, drive shaft coupling, center shaft, The driven gear of the second motor; wherein: the powertrain controller controls the engine, the power battery, the controller of the power coupling device and the motor controller, and the motor controller controls all The work of the first motor and the second motor; the power coupling device realizes the coupling of the power of the engine and the power of the first motor and the power of the second motor; one end of the output shaft of the engine is connected to the clutch , the other end is connected to the planet carrier, and one of the brakes is also connected to the output shaft of the engine; one end of the power output shaft is connected to the first motor through the transmission shaft coupling, and the other end is connected to the gear The second motor is connected to the output shaft of the second motor through the second motor coupling; the driving gear of the second motor is on the output shaft of the second motor, and the second motor The driven gear is on the central shaft, and the driven gear of the second motor is in constant mesh with the driving gear of the second motor; The sun gear and the second motor are connected with driven gears; the first motor and the second motor can be used as motors or generators; the clutch is used to control the output of the engine power and interruption, the brake is used for braking the engine output shaft and the planet carrier; the second motor and the engine can be arranged on the same side or the opposite side of the power coupling device; the power output shaft and The drive axles transmit power through gear pairs or chains, and the assembly power is radially output to the drive axles through the power output shaft;

When the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, the engine power passes through the clutch and the engine output shaft to the planetary carrier, and part of the power passes through the The ring gear is then transmitted to the power output shaft to drive the vehicle, and another part of the power passes through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, and the second motor The output shaft and the second motor coupling drive the second motor to generate electricity, and the electric energy is stored in the power battery for use when the first motor is driven; when the power of the engine cannot meet the needs, the The first motor works as a motor, and the power is output through the power output shaft to assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch is released, the engine no longer outputs power, the kinetic energy of the vehicle passes through the wheels, the drive axle, and drives the first motor to generate electricity, and the electric energy is stored in the power battery, so as to realize the power of the vehicle Brake feedback mode;

When the electric power of the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and the power is directly output to drive the vehicle; When the power provided by the first motor cannot meet the needs of the vehicle, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, and the second motor also works as a motor, and its power passes through the second motor. motor coupling, the output shaft of the second motor, the driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, the The power output shaft is output, and drives the vehicle together with the power coupling from the first motor, so as to realize the pure electric mode of the vehicle;

When the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch is engaged, the brake is released, the engine power passes through the clutch, the engine output shaft, the planet carrier transmitted to the planetary gear, and then through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, the output shaft of the second motor, the coupling of the second motor The shaft is transmitted to the second motor to drive the second motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing the in-situ power generation mode of the vehicle;

When the vehicle is stopped at night, the power battery of the vehicle is directly charged by using grid electric energy to save fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle.

In the second to sixth technical solutions, the structure of the power coupling device is different from that of the first solution according to different solutions.

The beneficial effects of the utility model of the utility model are:

Using a single planetary row structure to realize the function of a dual planetary row hybrid powertrain system can meet the requirements of light, medium and heavy hybrid vehicles, and is easy to design and process, which is conducive to reducing manufacturing costs, reducing the failure rate of planetary row, and solving the problem. Gear box oil leakage and sealing problems are easy to arrange and reduce costs; and five working modes can be realized, which is conducive to energy saving and emission reduction.

Description of drawings

Figure 1 is the Toyota THS hybrid system;

Fig. 2 is the first technical solution of a vehicle hybrid powertrain system of the utility model;

Fig. 3 is the power coupling device of the first technical solution of a vehicle hybrid powertrain system of the utility model;

Fig. 4 is the second technical solution of a vehicle hybrid powertrain system of the utility model;

Fig. 5 is the third technical solution of a vehicle hybrid powertrain system of the utility model;

Fig. 6 is the fourth technical solution of a vehicle hybrid powertrain system of the utility model;

Fig. 7 is the fifth technical solution of a vehicle hybrid powertrain system of the utility model;

Fig. 8 is the sixth technical solution of a vehicle hybrid powertrain system of the utility model;

In the figure: 1-engine, 2-power coupling device, 3-first motor, 4-second motor, 5-drive axle, 6-motor controller, 7-power battery, 8-powertrain controller, 9 -clutch, 10-engine output shaft, 11-second motor driving gear, 12-sun gear, 13-ring gear, 14-power output shaft, 15-second motor input shaft, 16-second motor coupling, 17-first motor driven gear, 18-transmission shaft coupling, 19-first motor driving gear, 20-first motor coupling, 21-first motor input shaft, 22-planet carrier, 23-planet Wheel, 24-central shaft, 25-second motor driven gear, 26-brake.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Implementation mode 1:

As shown in Figure 2, as the implementation of the first technical implementation of the basic idea of a hybrid powertrain system for a vehicle of the utility model of the utility model, it includes an engine 1, a power coupling device 2, a first motor 3, a first Two motors 4, a drive axle 5, a motor controller 6, a powertrain controller 8, and a power battery 7, wherein the power coupling device 2 includes a clutch 9, a brake 26, an engine output shaft 10, a second motor driving gear 11, Sun gear 12, ring gear 13, planet carrier 22, planetary gear 23, power output shaft 14, second motor output shaft 15, second motor coupling 16, first motor driven gear 17, transmission shaft coupling 18 , the first motor driving gear 19, the first motor coupling 20, the first motor output shaft 21, the central shaft 24, the second motor driven gear 25;

The powertrain controller 8 controls the engine 1, the power battery 7, the controller of the power coupling device 2 and the motor controller 6, and the motor controller 6 controls the first The work of the motor 3 and the second motor 4; the power coupling device 2 realizes the coupling of the power of the engine 1, the power of the first motor 3 and the power of the second motor 4; one end of the output shaft 10 of the engine The clutch 9 is connected, the other end is connected to the planet carrier 22, and a brake 26 is also connected to the engine output shaft 10; one end of the power output shaft 14 outputs driving force through a transmission shaft coupling, and the other end is connected to the The ring gear 13 is connected; the first motor 3 is coupled to the first motor output shaft 21 through the first motor 3 shaft coupling; the second motor 4 is connected to the shaft through the second motor 4 The device is coupled to the second motor output shaft 15; the first motor driving gear 19 is on the first motor output shaft 21, and the first motor driven gear 17 is on the power output shaft 14, The first motor driven gear 17 is in constant mesh with the first motor driven gear 19; the second motor driven gear 11 is on the second motor output shaft 15, and the second motor driven gear 25 is on the On the central shaft 24, the second motor driven gear 25 is in constant mesh with the second motor driving gear 11; The sun gear 12 and the second motor driven gear 25 are connected; the first motor 3 and the second motor 4 can be used as motors or generators; the clutch 9 is used to control The output and interruption of the power of the engine 1, the brake 26 is used for braking the engine output shaft 10 and the planet carrier 22; the first motor 3 and the second motor 4 are arranged on the power coupling The same side or different side of the device 2; the power of the assembly is axially output to the drive axle 5 through the power output shaft 14;

When the vehicle is running normally and the power battery 7 is fully charged, the clutch 9 is engaged, the brake 26 is released, and the power of the engine 1 reaches the planetary carrier 22 through the clutch 9 and the engine output shaft 10 , wherein part of the power passes through the ring gear 13, and then transmitted to the power output shaft 14 to drive the vehicle, and the other part of the power passes through the sun gear 12, the central shaft 24, the second motor driven gear 25, The driving gear 11 of the second motor, the output shaft 15 of the second motor, and the coupling 16 of the second motor drive the second motor 4 to generate electricity, and the electric energy is stored in the power battery 7 for the power of the second motor. Use when driving by a motor 3; when the power of the engine 1 cannot meet the needs, the first motor 3 works in a motor mode, and its power passes through the first motor coupling 20 and the first motor output shaft 21 , the driving gear 19 of the first motor, the driven gear 17 of the first motor, and the power output shaft 14 are output to assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch 9 is released, the engine 1 no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle 5, the transmission shaft coupling 18, the power output shaft 14, the The first motor driven gear 17, the first motor driving gear 19, the first motor output shaft 21, and the first motor coupling 20 drive the first motor 3 to generate electricity, and its electric energy is stored in the The above-mentioned power battery 7, so as to realize the brake feedback mode of the vehicle;

When the power battery 7 of the vehicle is sufficiently charged and the engine 1 is not required to work, the engine 1 is stopped, the clutch 9 is disengaged, the brake 26 is released, and the first motor 3 works as a motor. Power passes through the first motor coupling 20, the first motor output shaft 21, the first motor driving gear 19, the first motor driven gear 17, and the power output shaft 14 to drive the vehicle; When the power provided by the first motor 3 cannot meet the needs of the vehicle, the clutch 9 is disengaged, the brake 26 brakes, the planet carrier 22 cannot rotate, and the second motor 4 also works as a motor. The power passes through the second motor coupling 16, the second motor output shaft 15, the second motor driving gear 11, the second motor driven gear 25, the hollow shaft, the sun gear 12, the The planetary gear 23, the ring gear 13, and the power output shaft 14 are output together with the power coupling from the first motor 3 to drive the vehicle, thereby realizing the pure electric mode of the vehicle;

When the power battery 7 of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch 9 is engaged, the brake 26 is released, the power of the engine 1 passes through the clutch 9, and the output shaft of the engine 10. The planet carrier 22 is transmitted to the planetary gear 23, and then through the sun gear 12, the central shaft 24, the second motor driven gear 25, the second motor driving gear 11, the The second motor output shaft 15 and the second motor coupling 16 are transmitted to the second motor 4 to drive the second motor 4 to generate electricity, and its electric energy is stored in the power battery 7, thereby realizing the principle of the vehicle. Earth power generation mode;

When the vehicle is stopped at night, the power battery 7 of the vehicle is directly charged by grid electric energy to save fuel consumption of the engine 1 , thereby realizing the grid charging mode of the vehicle.

Implementation mode 2:

As shown in Figure 4, as the implementation of the second technical implementation of the basic idea of a vehicle hybrid powertrain system of the utility model, the utility model is: a vehicle hybrid powertrain system, including an engine 1, a power Coupling device 2, first motor 3, second motor 4, drive axle 5, motor controller 6, powertrain controller 8, power battery 7, wherein said power coupling device 2 includes clutch 9, brake 26, engine output Shaft 10, first motor driving gear 19, first motor driven gear 17, sun gear 12, ring gear 13, planet carrier 22, planetary gear 23, power output shaft 14, first motor output shaft 21, first motor coupling Shaft device 20, transmission shaft coupling 18;

The powertrain controller 8 controls the engine 1, the power battery 7, the controller of the power coupling device 2 and the motor controller 6, and the motor controller 6 controls the first The work of the motor 3 and the second motor 4; the power coupling device 2 realizes the coupling of the power of the engine 1, the power of the first motor 3 and the power of the second motor 4; one end of the output shaft 10 of the engine The clutch 9 is connected, the other end is connected to the planet carrier 22, and a brake 26 is also connected to the engine output shaft 10; one end of the power output shaft 14 outputs driving force through a transmission shaft coupling, and the other end is connected to the The ring gear 13 is connected;

The first motor 3 is coupled to the first motor output shaft 21 through the first motor 3 coupling, the first motor driving gear 19 is on the first motor output shaft 21, and the first motor output shaft 21 is connected to the first motor output shaft 21. A motor driven gear 17 is on the power output shaft 14, and the first motor driven gear 17 is in constant mesh with the first motor driving gear 19; the rotor shaft of the second motor 4 is in constant mesh with the sun gear 12 connection; the first motor 3 is arranged outside the casing of the power coupling device 2, and the second motor 4 is arranged outside the casing of the power coupling device 2. These two motors can be used as motors or as generator; the clutch 9 is used to control the output and interruption of the power of the engine 1, and the brake 26 is used for braking the engine output shaft 10 and the planet carrier 22; the first motor 3 and the The engine 1 can be arranged on the same side or the opposite side of the power coupling device 2; the power of the assembly is axially output to the drive axle 5 through the power output shaft 14;

When the vehicle is running normally and the power battery 7 is fully charged, the clutch 9 is engaged, the brake 26 is released, and the power of the engine 1 reaches the planet carrier 22 through the clutch 9 and the engine output shaft 10 , wherein part of the power passes through the ring gear 13, and then transmitted to the power output shaft 14 to drive the vehicle, and the other part of the power drives the second motor 4 to generate electricity through the sun gear 12, and its electric energy is stored in the power battery 7 It is used when the first motor 3 is driven; when the power of the engine 1 cannot meet the needs, the first motor 3 works as a motor, and its power passes through the first motor coupling 20, the The output of the first motor output shaft 21, the first motor driving gear 19, the first motor driven gear 17, and the power output shaft 14 assists in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch 9 is released, the engine 1 no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle 5, the transmission shaft coupling 18, the power output shaft 14, the The first motor driven gear 17, the first motor driving gear 19, the first motor output shaft 21, and the first motor coupling 20 drive the first motor 3 to generate electricity, and its electric energy is stored in the The above-mentioned power battery 7, so as to realize the brake feedback mode of the vehicle;

When the power battery 7 of the vehicle is sufficiently charged and the engine 1 is not required to work, the engine 1 is stopped, the clutch 9 is disengaged, the brake 26 is released, and the first motor 3 works as a motor. Power passes through the first motor coupling 20, the first motor output shaft 21, the first motor driving gear 19, the first motor driven gear 17, and the power output shaft 14 to drive the vehicle; When the power provided by the first motor 3 cannot meet the needs of the vehicle, the clutch 9 is disengaged, the brake 26 brakes, the planet carrier 22 cannot rotate, and the second motor 4 also works as a motor. The power is output through the sun gear 12, the planetary gear 23, the ring gear 13, and the power output shaft 14, and drives the vehicle together with the power coupling from the first motor 3, thereby realizing the pure electric mode of the vehicle ;

When the power battery 7 of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch 9 is engaged, the brake 26 is released, the power of the engine 1 passes through the clutch 9, and the output shaft of the engine 10. The planetary carrier 22 is transmitted to the planetary gear 23, and then the second motor 4 is driven to generate electricity through the sun gear 12, and its electric energy is stored in the power battery 7, thereby realizing the in-situ power generation mode of the vehicle ;

When the vehicle is stopped at night, the power battery 7 of the vehicle is directly charged by grid electric energy to save fuel consumption of the engine 1 , thereby realizing the grid charging mode of the vehicle.

Implementation mode 3:

As shown in Figure 5, as the implementation of the third technical solution to realize the basic idea of a vehicle hybrid powertrain system of the present invention, it includes an engine 1, a power coupling device 2, a first motor 3, and a second motor 4. Drive axle 5, motor controller 6, powertrain controller 8, power battery 7, wherein said power coupling device 2 includes clutch 9, brake 26, engine output shaft 10, second motor drive gear 11, sun gear 12. Ring gear 13, planetary carrier 22, planetary gear 23, power output shaft 14, second motor output shaft 15, second motor coupling 16, drive shaft coupling 18, central shaft 24, second motor driven gear 25;

The powertrain controller 8 controls the engine 1, the power battery 7, the controller of the power coupling device 2 and the motor controller 6, and the motor controller 6 controls the first The work of the motor 3 and the second motor 4; the power coupling device 2 realizes the coupling of the power of the engine 1, the power of the first motor 3 and the power of the second motor 4; one end of the output shaft 10 of the engine Connect the clutch 9, the other end is connected to the planet carrier 22, and a brake 26 is also connected to the engine output shaft 10; one end of the power output shaft 14 is connected with the first motor 3, and the other end is connected with the The ring gear 13 is connected; the second motor 4 is coupled to the second motor output shaft 15 through the second motor 4 shaft coupling; the second motor driving gear 11 is connected to the second motor output shaft 15, the second motor driven gear 25 is on the central shaft 24, and the second motor driven gear 25 is in constant mesh with the second motor driving gear 11; the central shaft 24 is a hollow shaft, It is sleeved on the engine output shaft 10 and connected with the sun gear 12 and the second motor driven gear 25; the first motor 3 and the second motor 4 can be used as motors or Can be used as a generator; the clutch 9 is used to control the output and interruption of the power of the engine 1, and the brake 26 is used to brake the engine output shaft 10 and the planet carrier 22; the first motor 3 Connected in series between the power output shaft 14 and the drive axle 5, the second motor 4 and the engine 1 can be arranged on the same side or the opposite side of the power coupling device 2; the power of the assembly passes through the power The output shaft 14 is axially output to the drive axle 5;

When the vehicle is running normally and the power battery 7 is fully charged, the clutch 9 is engaged, the brake 26 is released, and the power of the engine 1 reaches the planet carrier 22 through the clutch 9 and the engine output shaft 10 , wherein part of the power passes through the ring gear 13, and then transmitted to the power output shaft 14 to drive the vehicle, and the other part of the power passes through the sun gear 12, the central shaft 24, the second motor driven gear 25, the The driving gear 11 of the second motor, the output shaft 15 of the second motor, and the coupling 16 of the second motor drive the second motor 4 to generate electricity, and the electric energy is stored in the power battery 7 for the first It is used when the motor 3 is driven; when the power of the engine 1 cannot meet the needs, the first motor 3 works as a motor, and the power is directly output to assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch 9 is released, the engine 1 no longer outputs power, the kinetic energy of the vehicle passes through the wheels, the drive axle 5, and drives the first motor 3 to generate electricity, and the electric energy is stored in the power battery 7 , so as to realize the brake feedback mode of the vehicle;

When the power battery 7 of the vehicle is sufficiently charged and the engine 1 is not required to work, the engine 1 is stopped, the clutch 9 is disengaged, the brake 26 is released, the first motor 3 works as a motor, and the power direct output to drive the vehicle; when the power provided by the first motor 3 cannot meet the needs of the vehicle, the clutch 9 is disengaged, the brake 26 brakes, the planet carrier 22 cannot rotate, and the second motor 4 also The motor mode works, and its power passes through the second motor coupling 16, the second motor output shaft 15, the second motor driving gear 11, the second motor driven gear 25, the hollow shaft, the The output of the sun gear 12, the planetary gear 23, the ring gear 13, and the power output shaft 14 drives the vehicle together with the power coupling from the first motor 3, thereby realizing the pure electric mode of the vehicle;

When the power battery 7 of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch 9 is engaged, the brake 26 is released, the power of the engine 1 passes through the clutch 9, and the output shaft of the engine 10. The planet carrier 22 is transmitted to the planetary gear 23, and then through the sun gear 12, the central shaft 24, the second motor driven gear 25, the second motor driving gear 11, the The second motor output shaft 15 and the second motor coupling 16 are transmitted to the second motor 4 to drive the second motor 4 to generate electricity, and the electric energy is stored in the power battery 7, thereby realizing the original position of the vehicle. power generation mode;

When the vehicle is stopped at night, the power battery 7 of the vehicle is directly charged by grid electric energy to save fuel consumption of the engine 1 , thereby realizing the grid charging mode of the vehicle.

Implementation mode 4:

As shown in Figure 6, as the implementation of the fourth technical solution to realize the basic idea of a vehicle hybrid powertrain system of the present utility model, it includes an engine 1, a power coupling device 2, a first motor 3, and a second motor 4. Drive axle 5, motor controller 6, powertrain controller 8, power battery 7, wherein said power coupling device 2 includes clutch 9, brake 26, engine output shaft 10, second motor drive gear 11, sun gear 12. Ring gear 13, planetary carrier 22, planetary gear 23, power output shaft 14, second motor output shaft 15, second motor coupling 16, first motor driven gear 17, first motor driving gear 19, the first A motor coupling 20, a first motor output shaft 21, a central shaft 24, and a second motor driven gear 25;

The powertrain controller 8 controls the engine 1, the power battery 7, the controller of the power coupling device 2 and the motor controller 6, and the motor controller 6 controls the first The work of the motor 3 and the second motor 4; the power coupling device 2 realizes the coupling of the power of the engine 1 and the power of the first motor 3 and the power of the second motor 4; one end of the output shaft 10 of the engine The clutch 9 is connected, the other end is connected to the planet carrier 22, and a brake 26 is also connected to the engine output shaft 10; one end of the power output shaft 14 is supported on the housing through a bearing, and the other end is connected to the The ring gear 13 is connected;

The first motor 3 is coupled to the first motor output shaft 21 through the first motor 3 coupling; the second motor 4 is coupled to the second motor 4 through the second motor 4 coupling. On the motor output shaft 15; the first motor driving gear 19 is on the first motor output shaft 21, the first motor driven gear 17 is on the power output shaft 14, and the first motor driven The gear 17 is in constant mesh with the driving gear 19 of the first motor; the driving gear 11 of the second motor is on the output shaft 15 of the second motor, and the driven gear 25 of the second motor is on the central shaft 24, The second motor driven gear 25 is constantly meshed with the second motor driving gear 11; the central shaft 24 is a hollow shaft, which is sleeved on the engine output shaft 10, and is connected with the sun gear 12, the The second motor driven gear 25 is connected; the first motor 3 and the second motor 4 can be used as a motor or a generator; the clutch 9 is used to control the output of the power of the engine 1 and interruption, the brake 26 is used for braking the engine output shaft 10 and the planet carrier 22; the first motor 3 and the second motor 4 are arranged on the same side or different sides of the power coupling device 2 ; The power output shaft 14 and the drive axle 5 transmit power through a gear pair or a chain, and the assembly power is radially output to the drive axle 5 through the power output shaft 14;

When the vehicle is running normally and the power battery 7 is fully charged, the clutch 9 is engaged, the brake 26 is released, and the power of the engine 1 reaches the planet carrier 22 through the clutch 9 and the engine output shaft 10 , wherein part of the power passes through the ring gear 13, and then transmitted to the power output shaft 14 to drive the vehicle radially, and the other part of the power passes through the sun gear 12, the central shaft 24, and the second motor driven gear 25. The driving gear 11 of the second motor, the output shaft 15 of the second motor, and the coupling 16 of the second motor drive the second motor 4 to generate electricity, and the electric energy is stored in the power battery 7 for all It is used when the first motor 3 is driven; when the power of the engine 1 cannot meet the needs, the first motor 3 works as a motor, and its power is output through the first motor coupling 20 and the first motor. The shaft 21, the driving gear 19 of the first motor, the driven gear 17 of the first motor, and the power output shaft 14 are output to assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch 9 is released, the engine 1 no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle 5, the power output shaft 14, the first motor driven gear 17, The driving gear 19 of the first motor, the output shaft 21 of the first motor, and the coupling 20 of the first motor drive the first motor 3 to generate electricity, and the electric energy is stored in the power battery 7, thereby realizing the control of the vehicle. dynamic feedback mode;

When the power battery 7 of the vehicle is sufficiently charged and the engine 1 is not required to work, the engine 1 is stopped, the clutch 9 is disengaged, the brake 26 is released, and the first motor 3 works as a motor. Power passes through the first motor coupling 20, the first motor output shaft 21, the first motor driving gear 19, the first motor driven gear 17, and the power output shaft 14 to drive the vehicle; When the power provided by the first motor 3 cannot meet the needs of the vehicle, the clutch 9 is disengaged, the brake 26 brakes, the planet carrier 22 cannot rotate, and the second motor 4 also works as a motor. The power passes through the second motor coupling 16, the second motor output shaft 15, the second motor driving gear 11, the second motor driven gear 25, the hollow shaft, the sun gear 12, the The planetary gear 23, the ring gear 13, and the power output shaft 14 are output together with the power coupling from the first motor 3 to drive the vehicle, thereby realizing the pure electric mode of the vehicle;

When the power battery 7 of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch 9 is engaged, the brake 26 is released, the power of the engine 1 passes through the clutch 9, and the output shaft of the engine 10. The planet carrier 22 is transmitted to the planetary gear 23, and then through the sun gear 12, the central shaft 24, the second motor driven gear 25, the second motor driving gear 11, the The second motor output shaft 15 and the second motor coupling 16 are transmitted to the second motor 4 to drive the second motor 4 to generate electricity, and the electric energy is stored in the power battery 7, thereby realizing the original position of the vehicle. power generation mode;

When the vehicle is stopped at night, the power battery 7 of the vehicle is directly charged by grid electric energy to save fuel consumption of the engine 1 , thereby realizing the grid charging mode of the vehicle.

Implementation mode 5:

As shown in Figure 7, the embodiment of the fifth technical solution to realize the basic idea of a hybrid powertrain system for a vehicle of the present invention is: a hybrid powertrain system for a vehicle, including an engine 1, a power coupling device 2. The first motor 3, the second motor 4, the drive axle 5, the motor controller 6, the powertrain controller 8, and the power battery 7, wherein the power coupling device 2 includes a clutch 9, a brake 26, and an engine output shaft 10 , the first motor driving gear 19, the first motor driven gear 17, the sun gear 12, the ring gear 13, the planet carrier 22, the planet gear 23, the power output shaft 14, and the central shaft 24;

The powertrain controller 8 controls the engine 1, the power battery 7, the controller of the power coupling device 2 and the motor controller 6, and the motor controller 6 controls the first The work of the motor 3 and the second motor 4; the power coupling device 2 realizes the coupling of the power of the engine 1 and the power of the first motor 3 and the power of the second motor 4; one end of the output shaft 10 of the engine The clutch 9 is connected, the other end is connected to the planet carrier 22, and a brake 26 is also connected to the engine output shaft 10; one end of the power output shaft 14 is supported on the housing through a bearing, and the other end is connected to the The ring gear 13 is connected;

The first motor 3 is coupled to the first motor output shaft 21 through the first motor 3 coupling, the first motor driving gear 19 is on the first motor output shaft 21, and the first motor output shaft 21 is connected to the first motor output shaft 21. A motor driven gear 17 is on the power output shaft 14, and the first motor driven gear 17 is in constant mesh with the first motor driving gear 19; the rotor of the second motor 4 is in constant mesh with the sun gear 12 connection; the first motor 3 is arranged outside the casing of the power coupling device 2, and the second motor 4 is arranged inside the casing of the power coupling device 2. These two motors can be used as motors or as generator; the clutch 9 is used to control the output and interruption of the power of the engine 1, and the brake 26 is used for braking the engine output shaft 10 and the planet carrier 22; the first motor 3 and the The engine 1 can be arranged on the same side or the opposite side of the power coupling device 2; power is transmitted between the power output shaft 14 and the drive axle 5 through a gear pair or a chain, and the assembly power passes through the power output shaft 14 diameter output to the drive axle 5;

When the vehicle is running normally and the power battery 7 is fully charged, the clutch 9 is engaged, the brake 26 is released, and the power of the engine 1 reaches the planet carrier 22 through the clutch 9 and the engine output shaft 10 , wherein part of the power passes through the ring gear 13, and then transmitted to the power output shaft 14 to drive the vehicle, and the other part of the power drives the second motor 4 to generate electricity through the sun gear 12, and the electric energy is stored in the power battery 7 , for use when the first motor 3 is driven; when the power of the engine 1 cannot meet the needs, the first motor 3 works as a motor, and its power passes through the first motor coupling 20, the second A motor output shaft 21, the first motor driving gear 19, the first motor driven gear 17, and the power output shaft 14 are output to assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch 9 is released, the engine 1 no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle 5, the power output shaft 14, the first motor driven gear 17, The driving gear 19 of the first motor, the output shaft 21 of the first motor, and the coupling 20 of the first motor drive the first motor 3 to generate electricity, and the electric energy is stored in the power battery 7, thereby realizing the control of the vehicle. dynamic feedback mode;

When the power battery 7 of the vehicle is sufficiently charged and the engine 1 is not required to work, the engine 1 is stopped, the clutch 9 is disengaged, the brake 26 is released, and the first motor 3 works as a motor. Power passes through the first motor coupling 20, the first motor output shaft 21, the first motor driving gear 19, the first motor driven gear 17, and the power output shaft 14 to drive the vehicle; When the power provided by the first motor 3 cannot meet the needs of the vehicle, the clutch 9 is disengaged, the brake 26 brakes, the planet carrier 22 cannot rotate, and the second motor 4 also works as a motor. Output through the sun gear 12, the planetary gear 23, the ring gear 13, and the power output shaft 14, and drive the vehicle together with the power coupling from the first motor 3, thereby realizing the pure electric mode of the vehicle;

When the power battery 7 of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch 9 is engaged, the brake 26 is released, the power of the engine 1 passes through the clutch 9, and the output shaft of the engine 10. The planet carrier 22 is transmitted to the planetary gear 23, and then the second motor 4 is driven to generate electricity through the sun gear 12, and the electric energy is stored in the power battery 7, thereby realizing the in-situ power generation mode of the vehicle; When the vehicle is stopped at night, the power battery 7 of the vehicle is directly charged by grid electric energy to save fuel consumption of the engine 1 , thereby realizing the grid charging mode of the vehicle.

Implementation mode 6:

As shown in Fig. 8, as the embodiment of the sixth technical solution to realize the basic idea of a vehicle hybrid powertrain system of the present utility model, it includes an engine 1, a power coupling device 2, a first motor 3, and a second motor 4. Drive axle 5, motor controller 6, powertrain controller 8, power battery 7, wherein said power coupling device 2 includes clutch 9, brake 26, engine output shaft 10, second motor drive gear 11, sun gear 12. Ring gear 13, planetary carrier 22, planetary gear 23, power output shaft 14, second motor output shaft 15, second motor coupling 16, drive shaft coupling 18, central shaft 24, second motor driven gear 25;

The powertrain controller 8 controls the engine 1, the power battery 7, the controller of the power coupling device 2 and the motor controller 6, and the motor controller 6 controls the first The work of the motor 3 and the second motor 4; the power coupling device 2 realizes the coupling of the power of the engine 1 and the power of the first motor 3 and the power of the second motor 4; one end of the output shaft 10 of the engine Connect the clutch 9, the other end is connected to the planet carrier 22, and a brake 26 is also connected to the engine output shaft 10; A motor 3 is connected, and the other end is connected with the ring gear 13; the second motor 4 is connected to the second motor output shaft 15 through the second motor 4 coupling; the second motor driving gear 11 On the second motor output shaft 15, the second motor driven gear 25 is on the central shaft 24, and the second motor driven gear 25 is in constant mesh with the second motor driving gear 11; The central shaft 24 is a hollow shaft, which is sleeved on the engine output shaft 10 and connected with the sun gear 12 and the second motor driven gear 25; the first motor 3 and the second motor The motor 4 can be used as a motor or as a generator; the clutch 9 is used to control the output and interruption of the power of the engine 1, and the brake 26 is used for the engine output shaft 10 and the planet carrier 22 braking; the second motor 4 and the engine 1 can be arranged on the same side or on the opposite side of the power coupling device 2; power is transmitted between the power output shaft 14 and the drive axle 5 through a gear pair or a chain , the assembly power is radially output to the drive axle 5 through the power output shaft 14;

When the vehicle is running normally and the power battery 7 is fully charged, the clutch 9 is engaged, the brake 26 is released, and the power of the engine 1 reaches the planet carrier 22 through the clutch 9 and the engine output shaft 10 , wherein part of the power passes through the ring gear 13, and then transmitted to the power output shaft 14 to drive the vehicle, and the other part of the power passes through the sun gear 12, the central shaft 24, the second motor driven gear 25, the The driving gear 11 of the second motor, the output shaft 15 of the second motor, and the coupling 16 of the second motor drive the second motor 4 to generate electricity, and the electric energy is stored in the power battery 7 for the first Used when the motor 3 is driven; when the power of the engine 1 cannot meet the needs, the first motor 3 works as a motor, and the power is output through the power output shaft 14 to assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle;

When the vehicle brakes, the clutch 9 is released, the engine 1 no longer outputs power, the kinetic energy of the vehicle passes through the wheels, the drive axle 5, and drives the first motor 3 to generate electricity, and the electric energy is stored in the power battery 7 , so as to realize the brake feedback mode of the vehicle;

When the power battery 7 of the vehicle is sufficiently charged and the engine 1 is not required to work, the engine 1 is stopped, the clutch 9 is disengaged, the brake 26 is released, the first motor 3 works as a motor, and the power direct output to drive the vehicle; when the power provided by the first motor 3 cannot meet the needs of the vehicle, the clutch 9 is disengaged, the brake 26 brakes, the planet carrier 22 cannot rotate, and the second motor 4 also The motor mode works, and its power passes through the second motor coupling 16, the second motor output shaft 15, the second motor driving gear 11, the second motor driven gear 25, the hollow shaft, the The output of the sun gear 12, the planetary gear 23, the ring gear 13, and the power output shaft 14 drives the vehicle together with the power coupling from the first motor 3, thereby realizing the pure electric mode of the vehicle;

When the power battery 7 of the vehicle is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch 9 is engaged, the brake 26 is released, the power of the engine 1 passes through the clutch 9, and the output shaft of the engine 10. The planet carrier 22 is transmitted to the planetary gear 23, and then through the sun gear 12, the central shaft 24, the second motor driven gear 25, the second motor driving gear 11, the The second motor output shaft 15 and the second motor coupling 16 are transmitted to the second motor 4 to drive the second motor 4 to generate electricity, and the electric energy is stored in the power battery 7, thereby realizing the original position of the vehicle. power generation mode;

When the vehicle is stopped at night, the power battery 7 of the vehicle is directly charged by grid electric energy to save fuel consumption of the engine 1 , thereby realizing the grid charging mode of the vehicle.

The content and working principle of the present utility model have been described schematically above, and the description is not restrictive. What is shown in the accompanying drawings is only an example of the implementation of the present utility model, and the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by it, without departing from the purpose of the utility model, adopt other forms to design structures and embodiments similar to the utility model, which also belong to the protection scope of the utility model .

Claims (6)

1. A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes Clutch, brake, engine output shaft, second motor driving gear, sun gear, ring gear, planet carrier, planetary gear, power output shaft, second motor output shaft, second motor coupling, first motor driven gear, Transmission shaft coupling, first motor driving gear, first motor coupling, first motor output shaft, central shaft, second motor driven gear; it is characterized in that: the powertrain controller controls the engine , the power battery, the controller of the power coupling device and the motor controller, the motor controller controls the work of the first motor and the second motor; the power coupling device realizes the The coupling of the engine power, the first motor power and the second motor power; one end of the engine output shaft is connected to the clutch, the other end is connected to the planet carrier, and one of the engine output shafts is also connected to the Brake; one end of the power output shaft outputs driving force through a transmission shaft coupling, and the other end is connected to the ring gear; the first motor is coupled to the first motor output shaft through the first motor coupling on; the second motor is coupled to the output shaft of the second motor through the second motor coupling; the driving gear of the first motor is on the output shaft of the first motor, and the first motor is connected to the output shaft of the first motor The driving gear is on the power output shaft, and the driven gear of the first motor is in constant mesh with the driving gear of the first motor; the driving gear of the second motor is on the output shaft of the second motor, and the second motor driving gear is on the output shaft of the second motor. The driven gear of the motor is on the central shaft, and the driven gear of the second motor is in constant mesh with the driving gear of the second motor; The sun gear and the second motor are connected with driven gears; the first motor and the second motor can be used as motors or generators; the clutch is used to control the power of the engine Output and interruption, the brake is used for braking the engine output shaft and the planet carrier; the first motor and the second motor are arranged on the same side or different side of the power coupling device; the power of the assembly passes through The power output shaft is axially output to the drive axle; when the vehicle is running normally and the power battery is sufficiently charged, the clutch is engaged, the brake is released, and the engine power passes through the clutch, the engine The output shaft reaches the planet carrier, part of the power passes through the ring gear, and then is transmitted to the power output shaft to drive the vehicle, and the other part of the power is driven by the sun gear, the central shaft, and the second motor The gear, the driving gear of the second motor, the output shaft of the second motor, and the coupling of the second motor drive the second motor to generate electricity, and the electric energy is stored in the power battery for the driving of the first motor When the power of the engine cannot meet the needs, the first motor works as a motor, and its power passes through the first motor coupling, The output shaft of the first motor, the driving gear of the first motor, the driven gear of the first motor, and the output shaft of the power auxiliary drive the vehicle, thereby realizing the hybrid mode of the vehicle; when the vehicle brakes, the The clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle, the transmission shaft coupling, the power output shaft, the first motor driven gear, the first The driving gear of the motor, the output shaft of the first motor, and the coupling of the first motor drive the first motor to generate electricity, and its electric energy is stored in the power battery, thereby realizing the braking feedback mode of the vehicle; when the vehicle is described When the power battery is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and its power passes through the first motor coupling , the output shaft of the first motor, the driving gear of the first motor, the driven gear of the first motor, and the output shaft of the power drive the vehicle; when the power provided by the first motor cannot meet the needs of the vehicle, The clutch is separated, the brake brakes, the planet carrier cannot rotate, and the second motor also works as a motor, and its power passes through the second motor coupling, the second motor output shaft, the The driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, and the power output shaft are output together with the power from the first motor Coupled together to drive the vehicle, so as to realize the pure electric mode of the vehicle; when the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate electricity, the vehicle brakes, the clutch is engaged, the brake is released, and the engine power is passed through the The clutch, the engine output shaft and the planet carrier are transmitted to the planetary gear, and then through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, and the driven gear of the second motor. The output shaft of the second motor and the coupling of the second motor are transmitted to the second motor to drive the second motor to generate electricity, and its electric energy is stored in the power battery, thereby realizing the in-situ power generation mode of the vehicle; When the vehicle is stopped at night, the power battery of the vehicle is directly charged by using grid electric energy to save fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle. the 2. A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes Clutch, brake, engine output shaft, first motor driving gear, first motor driven gear, sun gear, ring gear, planet carrier, planetary gear, power output shaft, first motor output shaft, first motor coupling, Transmission shaft coupling; it is characterized in that: the powertrain controller controls the engine, the power battery, the controller of the power coupling device and the motor controller, and the motor controller controls The work of the first motor and the second motor; the power coupling device realizes the coupling of the power of the engine, the power of the first motor and the power of the second motor; one end of the output shaft of the engine is connected to the clutch, the other end of which is connected to the planetary carrier, and one of the brakes is also connected to the output shaft of the engine; one end of the power output shaft outputs driving force through a transmission shaft coupling, and the other end is connected with the ring gear; The first motor is coupled to the output shaft of the first motor through the first motor coupling, the driving gear of the first motor is on the output shaft of the first motor, and the driven gear of the first motor is on the output shaft of the first motor. On the power output shaft, the driven gear of the first motor is in constant mesh with the driving gear of the first motor; the rotor shaft of the second motor is connected with the sun gear; the first motor is arranged on the power coupling Outside the housing of the device, the second motor is arranged outside the housing of the power coupling device, and the two motors can be used as a motor or a generator; the clutch is used to control the output and interruption of the engine power , the brake is used for braking the engine output shaft and the planetary carrier; the first motor and the engine can be arranged on the same side or on the opposite side of the power coupling device; the power of the assembly passes through the power output The shaft is axially output to the drive axle; when the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, and the engine power passes through the clutch and the engine output shaft to reach the The planet carrier, wherein part of the power passes through the ring gear, and then transmitted to the power output shaft to drive the vehicle, and the other part of the power drives the second motor to generate electricity through the sun gear, and its electric energy is stored in the power battery. For use when the first motor is driven; when the power of the engine cannot meet the needs, the first motor works as a motor, and its power passes through the first motor coupling, the first motor output shaft, The driving gear of the first motor, the driven gear of the first motor, and the output shaft of the power output auxiliary drive the vehicle, thereby realizing the hybrid mode of the vehicle; When the vehicle brakes, the clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle is transferred from the wheel, the drive axle, the drive shaft coupling, the power output shaft, and the first motor to The driving gear, the driving gear of the first motor, the output shaft of the first motor, and the coupling of the first motor drive the first motor to generate electricity, and its electric energy is stored in the power battery, so as to realize the braking of the vehicle Feedback mode: when the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and its power passes through the The first motor coupling, the first motor output shaft, the first motor driving gear, the first motor driven gear, and the power output shaft drive the vehicle; when the first motor provides When the power cannot meet the needs of the vehicle, the clutch is disengaged, the brake brakes, the planetary carrier cannot rotate, and the second motor also works as a motor, and its power passes through the sun gear, the planetary gear, the The ring gear and the power output shaft are output together to drive the vehicle together with the power coupling from the first motor, so as to realize the pure electric mode of the vehicle; when the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate electricity, the vehicle Braking, the clutch is engaged, the brake is released, the engine power is transmitted to the planetary gear through the clutch, the engine output shaft, and the planetary carrier, and then drives the second gear through the sun gear. The second motor generates electricity, and its electric energy is stored in the power battery, so as to realize the in-situ power generation mode of the vehicle; when the vehicle is stopped at night, the power battery of the vehicle is directly charged by using the grid electric energy, so as to save the fuel consumption of the engine, In this way, the grid charging mode of the vehicle is realized. the 3. A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes Clutches, brakes, engine output shafts, second motor driving gears, sun gears, ring gears, planet carriers, planetary gears, power take-off shafts, second motor output shafts, second motor couplings, drive shaft couplings, centers Shaft, second motor driven gear; characterized in that: the powertrain controller controls the engine, the power battery, the controller of the power coupling device and the motor controller, and the motor The controller controls the operation of the first motor and the second motor; the power coupling device realizes the coupling of the power of the engine, the power of the first motor and the power of the second motor; one end of the output shaft of the engine The clutch is connected, the other end is connected to the planetary carrier, and one of the brakes is also connected to the output shaft of the engine; one end of the power output shaft is connected to the first motor, and the other end is connected to the ring gear; The second motor is coupled to the output shaft of the second motor through the second motor coupling; the driving gear of the second motor is on the output shaft of the second motor, and the driven gear of the second motor is on the output shaft of the second motor On the central shaft, the driven gear of the second motor is in constant mesh with the driving gear of the second motor; The second motor is connected to the driven gear; the first motor and the second motor can be used as a motor or a generator; the clutch is used to control the output and interruption of the engine power, so The brake is used for braking the engine output shaft and the planetary carrier; the first motor is connected in series between the power output shaft and the drive axle, and the second motor and the engine can be arranged in the The same side or the opposite side of the power coupling device; the power of the assembly is axially output to the drive axle through the power output shaft; when the vehicle is running normally and the power battery is sufficient, the clutch is engaged and the brake is released open, the engine power reaches the planetary carrier through the clutch and the engine output shaft, part of the power passes through the ring gear, and then is transmitted to the power output shaft to drive the vehicle, and the other part of the power passes through the sun gear , the central shaft, the driven gear of the second motor, the driving gear of the second motor, the output shaft of the second motor, and the coupling of the second motor drive the second motor to generate electricity, and the electric energy is stored in The power battery is used for driving the first motor; when the power of the engine cannot meet the needs, the first motor works as a motor, and the power is directly output to assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle ; When the vehicle brakes, the clutch is released, the engine no longer outputs power, the kinetic energy of the vehicle passes through the wheels, the drive axle, and drives the first motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing the vehicle brake feedback mode; when the power battery of the vehicle is sufficient, the engine does not need When the engine is working, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and the power is directly output to drive the vehicle; when the power provided by the first motor cannot meet the needs of the vehicle , the clutch is separated, the brake brakes, the planet carrier cannot rotate, and the second motor also works as a motor, and its power passes through the second motor coupling, the second motor output shaft, The driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, and the power output shaft are output together with the output from the first motor. The power coupling drives the vehicle together, so as to realize the pure electric mode of the vehicle; when the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate electricity, the vehicle brakes, the clutch is engaged, the brake is released, and the engine power is passed through The clutch, the engine output shaft, and the planet carrier are transmitted to the planetary gear, and then passed through the sun gear, the central shaft, the second motor driven gear, the second motor driving gear, The output shaft of the second motor and the coupling of the second motor are transmitted to the second motor to drive the second motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing the in-situ power generation mode of the vehicle; When the vehicle is stopped at night, the power battery of the vehicle is directly charged by using grid electric energy to save fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle. the 4. A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes Clutch, brake, engine output shaft, second motor driving gear, sun gear, ring gear, planet carrier, planetary gear, power output shaft, second motor output shaft, second motor coupling, first motor driven gear, The driving gear of the first motor, the first motor coupling, the output shaft of the first motor, the central shaft, and the driven gear of the second motor; it is characterized in that: the powertrain controller controls the engine, the power battery, The controller of the power coupling device is controlled by the motor controller, and the motor controller controls the operation of the first motor and the second motor; the power coupling device realizes the engine power and the Coupling of the power of the first motor and the power of the second motor; one end of the engine output shaft is connected to the clutch, the other end is connected to the planetary carrier, and one of the brakes is also connected to the engine output shaft; the power output One end of the shaft is supported on the housing through a bearing, and the other end is connected with the ring gear; the first motor is coupled to the output shaft of the first motor through the first motor coupling; the second motor is connected through the The second motor coupling is coupled to the second motor output shaft; the first motor driving gear is on the first motor output shaft, and the first motor driven gear is on the power output shaft On, the driven gear of the first motor is in constant mesh with the driving gear of the first motor; the driving gear of the second motor is on the output shaft of the second motor, and the driven gear of the second motor is in the center On the shaft, the driven gear of the second motor is in constant mesh with the driving gear of the second motor; The two motors are connected with driven gears; the first motor and the second motor can be used as motors or generators; the clutch is used to control the output and interruption of the engine power, and the brake is used Brake on the engine output shaft and the planet carrier; the first motor and the second motor are arranged on the same side or the opposite side of the power coupling device; between the power output shaft and the drive axle The power is transmitted through the gear pair or the chain, and the assembly power is radially output to the drive axle through the power output shaft; when the vehicle is running normally and the power battery is sufficient, the clutch is engaged, the brake is released, The engine power reaches the planetary carrier through the clutch and the engine output shaft, part of the power passes through the ring gear, and then is transmitted to the power output shaft to drive the vehicle radially, and the other part of the power passes through the sun The wheel, the central shaft, the driven gear of the second motor, the driving gear of the second motor, the output shaft of the second motor, and the coupling of the second motor drive the second motor to generate electricity, and the electric energy is stored In the power battery, it is used for driving by the first motor; when the power of the engine cannot meet the demand, the first motor The motor works, and its power is output through the first motor coupling, the first motor output shaft, the first motor driving gear, the first motor driven gear, and the power output shaft to assist in driving the vehicle. , so as to realize the hybrid mode of the vehicle; when the vehicle brakes, the clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle, the power output shaft, and the first motor The driven gear, the driving gear of the first motor, the output shaft of the first motor, and the coupling of the first motor drive the first motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing braking of the vehicle Feedback mode: when the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and its power passes through the The first motor coupling, the first motor output shaft, the first motor driving gear, the first motor driven gear, and the power output shaft drive the vehicle; when the first motor provides When the power cannot meet the needs of the vehicle, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, and the second motor also works as a motor, and its power passes through the second motor coupling, the The output shaft of the second motor, the driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, and the power output shaft are output from the same The power coupling of the first motor drives the vehicle together, so as to realize the pure electric mode of the vehicle; when the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate electricity, the vehicle brakes, the clutch is engaged, and the brake is released , the engine power is transmitted to the planetary gear through the clutch, the engine output shaft and the planet carrier, and then through the sun gear, the central shaft, the second motor driven gear, the The driving gear of the second motor, the output shaft of the second motor, and the coupling of the second motor are transmitted to the second motor to drive the second motor to generate electricity, and the electric energy is stored in the power battery, thereby realizing The in-situ power generation mode of the vehicle; when the vehicle is stopped at night, the power battery of the vehicle is directly charged by using the grid electric energy to save the fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle. the 5. A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes Clutches, brakes, engine output shafts, first motor driving gears, first motor driven gears, sun gears, ring gears, planet carriers, planetary gears, power output shafts, central shafts; it is characterized in that: the powertrain control The controller controls the engine, the power battery, the controller of the power coupling device and the motor controller, and the motor controller controls the operation of the first motor and the second motor; The power coupling device realizes the coupling of the engine power, the first motor power and the second motor power; one end of the engine output shaft is connected to the clutch, and the other end is connected to the planet carrier, and the engine output shaft is A brake is also connected; one end of the power output shaft is supported on the housing through a bearing, and the other end is connected with the ring gear; the first motor is coupled to the first motor through the first motor coupling On the output shaft of the motor, the driving gear of the first motor is on the output shaft of the first motor, the driven gear of the first motor is on the output shaft of the power, the driven gear of the first motor is connected to the driven gear of the first motor The driving gear of a motor is constantly meshed; the rotor of the second motor is connected to the sun gear; the first motor is arranged outside the casing of the power coupling device, and the second motor is arranged inside the casing of the power coupling device , the two motors can be used as motors or generators; the clutch is used to control the output and interruption of the engine power, and the brake is used to brake the engine output shaft and the planet carrier ; The first motor and the engine can be arranged on the same side or on the opposite side of the power coupling device; power is transmitted between the power output shaft and the drive axle through a gear pair or a chain, and the power of the assembly passes through the The power output shaft is radially output to the drive axle; when the vehicle is running normally and the power battery is fully charged, the clutch is engaged, the brake is released, and the engine power passes through the clutch, the engine output shaft Arriving at the planet carrier, part of the power passes through the ring gear, and then is transmitted to the power output shaft to drive the vehicle, and the other part of the power drives the second motor to generate electricity through the sun gear, and the electric energy is stored in the power battery , for use when the first motor is driven; when the power of the engine cannot meet the needs, the first motor works as a motor, and its power passes through the first motor coupling, the first motor output shaft , the driving gear of the first motor, the driven gear of the first motor, and the output of the power output shaft assist in driving the vehicle, thereby realizing the hybrid mode of the vehicle; when the vehicle brakes, the clutch is released, and the The engine no longer outputs power, and the kinetic energy of the vehicle passes through the wheels, the drive axle, the power output shaft, the driven gear of the first motor, the driving gear of the first motor, the output shaft of the first motor, and the first motor. A motor coupling drives the first motor to generate electricity, and the electric energy is stored In the power battery, the brake feedback mode of the vehicle is realized; when the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, and the The first motor works as a motor, and its power passes through the first motor coupling, the first motor output shaft, the first motor driving gear, the first motor driven gear, the power output shaft Output drives the vehicle; when the power provided by the first motor cannot meet the needs of the vehicle, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, the second motor also works as a motor, and the power passes through The sun gear, the planetary gear, the ring gear, and the power output shaft are output together with the power coupling from the first motor to drive the vehicle, thereby realizing the pure electric mode of the vehicle; when the power battery of the vehicle When the power is insufficient and the vehicle needs to be parked to generate power, the vehicle brakes, the clutch is engaged, the brake is released, and the engine power is transmitted to the planetary wheels through the clutch, the engine output shaft, and the planetary carrier , and then drive the second motor to generate electricity through the sun wheel, and the electric energy is stored in the power battery, so as to realize the in-situ power generation mode of the vehicle; when the vehicle is stopped at night, the power battery of the vehicle is directly charged by using the electric energy of the grid , to save the fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle. the 6. A hybrid powertrain system for a vehicle, comprising an engine, a power coupling device, a first motor, a second motor, a drive axle, a motor controller, a powertrain controller, and a power battery, wherein the power coupling device includes Clutches, brakes, engine output shafts, second motor driving gears, sun gears, ring gears, planet carriers, planetary gears, power take-off shafts, second motor output shafts, second motor couplings, drive shaft couplings, centers Shaft, second motor driven gear; characterized in that: the powertrain controller controls the engine, the power battery, the controller of the power coupling device and the motor controller, and the motor The controller controls the operation of the first motor and the second motor; the power coupling device realizes the coupling of the power of the engine and the power of the first motor and the power of the second motor; one end of the output shaft of the engine The clutch is connected, the other end is connected to the planetary carrier, and one of the brakes is also connected to the output shaft of the engine; one end of the power output shaft is connected to the first motor through the transmission shaft coupling, and the other end is connected with the ring gear; the second motor is coupled to the output shaft of the second motor through the second motor coupling; the driving gear of the second motor is on the output shaft of the second motor, so The driven gear of the second motor is on the central shaft, and the driven gear of the second motor is constantly meshed with the driving gear of the second motor; the central shaft is a hollow shaft and is sleeved on the output shaft of the engine , and connected with the sun gear and the driven gear of the second motor; the first motor and the second motor can be used as motors or generators; the clutch is used to control the The output and interruption of engine power, the brake is used for braking the engine output shaft and the planet carrier; the second motor and the engine can be arranged on the same side or different side of the power coupling device; the Power is transmitted between the power output shaft and the drive axle through a gear pair or a chain, and the power of the assembly is radially output to the drive axle through the power output shaft; when the vehicle is running normally and the power of the power battery is sufficient, the The clutch is engaged, the brake is released, the engine power reaches the planet carrier through the clutch and the engine output shaft, and part of the power passes through the ring gear, and then is transmitted to the power output shaft to drive the vehicle. Another part of the power drives the motor through the sun gear, the central shaft, the driven gear of the second motor, the driving gear of the second motor, the output shaft of the second motor, and the coupling of the second motor. The second motor generates electricity, and the electric energy is stored in the power battery for use when the first motor is driven; when the power of the engine cannot meet the needs, the first motor works as a motor, and the power is output through the power The shaft output assists in driving the vehicle, so as to realize the hybrid mode of the vehicle; when the vehicle brakes, the clutch is released, the engine no longer outputs power, and the kinetic energy of the vehicle drives the first motor through the wheels, the drive axle Power generation, the electric energy is stored in the power battery, so as to realize the braking feedback mode of the vehicle; When the electric power of the power battery of the vehicle is sufficient and the engine does not need to work, the engine stops, the clutch is disengaged, the brake is released, the first motor works as a motor, and the power is directly output to drive the vehicle; When the power provided by the first motor cannot meet the needs of the vehicle, the clutch is disengaged, the brake brakes, the planet carrier cannot rotate, and the second motor also works as a motor, and its power passes through the second motor. motor coupling, the output shaft of the second motor, the driving gear of the second motor, the driven gear of the second motor, the hollow shaft, the sun gear, the planetary gear, the ring gear, the The output of the power output shaft drives the vehicle together with the power coupling from the first motor, so as to realize the pure electric mode of the vehicle; when the power battery of the vehicle is insufficient and the vehicle needs to be parked to generate electricity, the vehicle brakes, and the clutch Engaged, the brake is released, the engine power is transmitted to the planetary gear through the clutch, the engine output shaft, and the planet carrier, and then through the sun gear, the central shaft, and the second The driven gear of the motor, the driving gear of the second motor, the output shaft of the second motor, and the coupling of the second motor are transmitted to the second motor to drive the second motor to generate electricity, and the electric energy is stored in the In the power battery, so as to realize the in-situ power generation mode of the vehicle; when the vehicle is stopped at night, the power battery of the vehicle is directly charged by using the grid power to save the fuel consumption of the engine, thereby realizing the grid charging mode of the vehicle. the

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