CN121201004A - Two-wheeled vehicles and their electromechanical braking systems - Google Patents
Two-wheeled vehicles and their electromechanical braking systemsInfo
- Publication number
- CN121201004A CN121201004A CN202511651705.4A CN202511651705A CN121201004A CN 121201004 A CN121201004 A CN 121201004A CN 202511651705 A CN202511651705 A CN 202511651705A CN 121201004 A CN121201004 A CN 121201004A
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- brake
- braking
- motor
- control device
- circuit
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Abstract
The invention discloses a two-wheel vehicle and an electronic mechanical braking system thereof, which belong to the two-wheel vehicle technology and improve the braking reliability, and comprise a control unit, a main braking circuit and an auxiliary braking circuit, wherein the control unit is one of a right braking handle and a left braking handle and a braking pedal, or the combination of one braking handle and the braking pedal, after being controlled, the control unit executes a control action and generates a control signal, the main braking circuit comprises a braking executing mechanism arranged on a front wheel and a rear wheel of the two-wheel vehicle, the braking executing mechanism comprises a motor control device, a braking motor and a brake, the motor control device generates a control signal for the braking motor according to the control signal, the braking motor drives the brake to realize braking or release, the auxiliary braking circuit comprises a pull rope connected with the other braking handle, the other braking handle outputs pulling force through the pull rope, and when the main braking circuit fails, the auxiliary braking circuit is switched to execute the braking of the rear wheel.
Description
Technical Field
The invention belongs to the technical field of two-wheelers, and particularly relates to a two-wheeler braking technology.
Background
U.S. patent publication No. US20210229649A1 discloses a brake-by-wire apparatus for a straddle-type vehicle, including a brake, a brake operating unit, a control unit, and a signal processing unit. The driver inputs signals to the signal processing unit through operating the brake operation unit, including pressing the pressure sensor on the handle and stepping on the brake pedal, and the signal processing unit supplies power to the control unit according to the input signals, so that the control unit generates control signals to control the front and rear wheel brake loops. The brake circuit comprises a hydraulic circuit which consists of a regulator, an electromagnetic valve and the like. According to the control signal, the front and rear wheel brake calipers are operated by a preset control pressure generated by the oil pressure of the master cylinder, so that the brake calipers generate a preset braking force. The prior art adopts a hydraulic circuit to transmit pressure signals, and comprises a regulator, an electromagnetic valve, a main cylinder and oil, the structure is complex, oil leakage pollution is easy to generate, and the corresponding braking speed is low.
Disclosure of Invention
In order to overcome the defects in the prior art, the technical problem to be solved by the invention is to provide a two-wheel vehicle and an electronic mechanical braking system thereof, which simplify the structure, improve the corresponding braking speed and improve the braking reliability.
In order to solve the technical problems, the invention adopts the following technical scheme:
a two-wheeled vehicle electromechanical brake system comprising:
the control unit is one of a right brake handle and a left brake handle, a brake pedal or a combination of one brake handle and the brake pedal, executes a control action after being controlled and generates a control signal;
The main braking circuit comprises a braking executing mechanism arranged on the front wheel and the rear wheel of the two-wheel vehicle, the braking executing mechanism comprises a motor control device, a braking motor and a brake, the motor control device generates a control signal for the braking motor according to the control signal, and the braking motor drives the brake to realize braking or release;
the auxiliary brake circuit comprises a inhaul cable connected with the other brake handle, and the other brake handle outputs tension through the inhaul cable to control a brake actuating mechanism of the rear wheel;
When the main brake line fails, the auxiliary brake line is switched to execute the rear wheel brake.
Preferably, the motor control device of the brake actuating mechanism of the rear wheel is provided with a main brake line monitoring module for monitoring a main brake line, and is switched to a sub brake line to execute the rear wheel brake when the main brake line is monitored to be faulty.
Preferably, the auxiliary brake circuit further comprises a second force sensor connected with the inhaul cable, the second force sensor is connected with a motor control device of a brake actuating mechanism of the rear wheel, and when the main brake circuit monitoring module monitors that the main brake circuit fails and the second force sensor has an input signal, the auxiliary brake circuit is switched to execute the braking of the rear wheel according to the signal of the second force sensor.
Preferably, the motor control device comprises a power module, a processing module and a motor driving circuit, wherein the power module converts power supplied by a vehicle-mounted power supply to supply power to a braking system, and the processing module analyzes and calculates control signals to generate control instructions for the braking motor and drives the braking motor through the motor driving circuit.
Preferably, the brake handle is hinged to the motorcycle handle, an angle exists between the brake handle and the motorcycle handle, the angle of the brake handle is reduced after the brake handle is controlled, the brake handle is connected with an elastic piece which resets after the brake handle is controlled, a first force sensor is arranged on the hinge or the elastic piece and used for detecting the reaction force received by the brake handle when the brake handle is controlled, and the first force sensor transmits signals to the motor control device.
Preferably, the brake pedal is hinged to the pedal support, an angle exists between the brake pedal and the pedal support, the angle of the brake pedal is reduced after the brake pedal is controlled, the brake pedal is connected with an elastic piece which is reset after the brake pedal is controlled, a first force sensor is arranged on the hinge or the elastic piece and used for detecting the reaction force received by the brake pedal when the brake pedal is controlled, and the first force sensor transmits signals to the motor control device.
Preferably, the brake comprises a reduction gear assembly and a motion conversion assembly, the reduction gear assembly is driven by the brake motor, the reduction gear assembly transmits rotary motion to the motion conversion assembly, and the motion conversion assembly converts the rotary motion into linear motion.
Preferably, the speed reduction gear assembly comprises a secondary speed reduction gear assembly and a planetary speed reduction assembly, wherein the secondary speed reduction gear assembly comprises a first-stage pinion and a second-stage big gear which are meshed, the first-stage pinion is fixed with a motor shaft of the brake motor, an output shaft of the second-stage big gear is connected with an input end of the planetary speed reduction assembly, and/or the motion conversion assembly is a ball screw assembly.
In addition, a two-wheel vehicle is also provided, and the two-wheel vehicle comprises the electronic mechanical brake system.
Further, the wheel is provided with a wheel speed sensor, and the vehicle body is provided with an inertial sensor.
The technical scheme adopted by the invention has the following beneficial effects:
An electromechanical brake system is used on a two-wheel vehicle, the electromechanical brake system is provided with a main brake circuit, the main brake circuit comprises a brake actuating mechanism arranged on a front wheel and a rear wheel of the two-wheel vehicle, the brake actuating mechanism comprises a motor control device, a brake motor and a brake, the motor control device generates a control signal for the brake motor according to a control signal, and the brake motor drives the brake to realize braking or releasing, so that a hydraulic circuit is not required to be arranged, and the structure is simplified. The control unit and the motor control device are in electric signal transmission, and the brake motor drives the brake to brake rapidly, so that the corresponding braking speed of the two-wheel vehicle is improved, and the braking efficiency is improved. Moreover, the motor control device can control the braking motor more accurately according to the control signal, so that the braking force of the brake is controlled, and the braking effect and the control experience are improved.
In addition, the electronic mechanical brake system is also provided with a secondary brake circuit, the secondary brake circuit comprises a inhaul cable connected with the other brake handle, the other brake handle outputs pulling force through the inhaul cable, a brake actuating mechanism of the rear wheel is controlled, and when the main brake circuit fails, the brake actuating mechanism is switched to the secondary brake circuit to execute the braking of the rear wheel. Under the condition that the auxiliary brake circuit is used as the second motor control device and can not normally collect control signals and other sensing signals of the vehicle, the auxiliary brake circuit is switched to be mechanically transmitted more stably and reliably, signals are provided for the motor control device, and the reliability of braking is improved.
These features and advantages of the present invention will be disclosed in detail in the following detailed description and the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of an electromechanical brake system for a two-wheeled vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the arrangement of left and right brake handles according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a motor control device;
FIG. 4 is a schematic diagram of a brake actuator according to an embodiment of the present invention;
reference numerals:
The vehicle-mounted battery 1, the right brake handle 20, the first force sensor 21, the left brake handle 25, the stay cable 26, the first motor control device 30, the second motor control device 31, the processing module 32, the power module 33, the motor driving circuit 34, the second force sensor 35, the first brake motor 40, the second brake motor 41, the stator 42, the encoder 43, the motor shaft 47, the secondary reduction gear assembly 48, the planetary gear assembly 49, the first brake 50, the second brake 51, the ball screw 52, the nut 52A, the brake pad 53 and the brake disc 60.
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In this embodiment, the two-wheeled vehicle may be an electric two-wheeled vehicle or a hybrid two-wheeled vehicle, and the two-wheeled vehicle electromechanical brake system includes a control unit, a main brake circuit, and a sub brake circuit.
As shown in fig. 1 to 4, the control unit is one of the right brake handle 20 and the left brake handle 25, a brake pedal, or a combination of one of the brake handles and the brake pedal, and is controlled by a driver by pinching the brake handle or pressing the brake pedal, performs a control action, performs the control action after being controlled, and generates a control signal.
The main braking circuit comprises a braking executing mechanism arranged on the front wheel and the rear wheel of the two-wheel vehicle, the braking executing mechanism comprises a motor control device, a braking motor and a brake, wherein the motor control device generates a control signal for the braking motor according to the control signal, and the braking motor drives the brake to realize braking or release. The brake actuator provided in the front wheel corresponds to the brake actuator provided in the rear wheel and includes the first motor control device 30, the first brake motor 40, and the first brake 50, and corresponds to the brake actuator provided in the rear wheel and includes the second motor control device 31, the second brake motor 41, and the second brake 51.
The auxiliary brake circuit comprises a pull rope 26 connected with the other brake handle, and the other brake handle outputs pulling force through the pull rope to control a brake actuating mechanism of the rear wheel;
When the main brake line fails, the auxiliary brake line is switched to execute the rear wheel brake.
The two-wheel vehicle adopts the electromechanical braking system, a hydraulic loop is not required to be arranged, and the structure is simplified. The control unit and the motor control device are in electric signal transmission, and the brake motor drives the brake to brake rapidly, so that the corresponding braking speed of the two-wheel vehicle is improved, and the braking efficiency is improved. Moreover, the motor control device can control the braking motor more accurately according to the control signal, so that the braking force of the brake is controlled, and the braking effect and the control experience are improved.
As shown in fig. 2 and 3, in the present embodiment, the manipulation unit is a combination of both the right brake handle 20 and the left brake handle 25. The left brake handle 25 and the right brake handle 20 are operated. Wherein, the control signal of the right brake handle 20 is simultaneously transmitted to the first motor control device 30 and the second motor control device 31, and the left brake handle 25 is connected with the stay cable 26.
The brake handle is hinged with the motorcycle handle, an angle exists between the brake handle and the motorcycle handle, the angle is reduced after the brake handle is controlled, the brake handle is connected with an elastic piece which resets after being controlled, a first force sensor 21 is arranged on the hinge or the elastic piece and used for detecting the reaction force received by the brake handle when being controlled, the first force sensor 21 is electrically connected with a first motor control device 30 and a second motor control device 31 at the same time, signals of the first force sensor 21 are transmitted to the first motor control device 30 and the second motor control device 31, and therefore, the first motor control device 30 and the second motor control device 31 brake front wheels and rear wheels according to control signals.
Further, the auxiliary brake circuit further comprises a second force sensor 35 connected with the guy cable 26, and the second force sensor 35 is connected with the second motor control device 31.
Since the second motor control device controls the auxiliary brake line to perform the rear wheel brake, the second motor control device is provided with a main brake line monitoring module that monitors the main brake line, and switches to the auxiliary brake line to perform the rear wheel brake when it is monitored that the main brake line fails. That is, when the main brake line monitoring module monitors that the main brake line fails and the second force sensor has an input signal, the control circuit switches to execute the rear wheel braking by the auxiliary brake line according to the signal of the second force sensor. Namely, the auxiliary braking circuit is used as an emergency measure, and is switched to be in stable and reliable mechanical transmission under the condition that the second motor control device cannot normally collect control signals and other sensing signals of the vehicle, so that signals are provided for the motor controller, and the reliability of braking is improved.
As shown in fig. 3, the first motor control device 30 and the second motor control device 31 have the same structure. That is, the two motor control devices each include a power module 33, a processing module 32 and a motor driving circuit 34, the power module 33 converts the power supplied by the vehicle power supply to supply power to the braking system, the processing module 32 analyzes and calculates the control signal to generate a control command for the braking motor, and the motor driving circuit 34 drives the braking motor.
The vehicle-mounted power supply is the vehicle-mounted storage battery 1, as an on-board power supply and the power module is in power supply connection. The electric two-wheeled vehicle or the hybrid two-wheeled vehicle is provided with an on-vehicle storage battery. With reference to the prior art, the power module is used for managing power supply to power consuming mechanisms in a braking system, and mainly comprises a braking motor, a circuit on a motor control device and a sensor, and mainly comprises a protection circuit, a power converter and the like. The processing module can calculate the driving current provided for the braking motor according to the control signal, and outputs three-phase alternating current through the motor driving circuit.
Wherein the brake actuating mechanism is arranged on a front fork and a rear fork of the two-wheel vehicle, and the brake is usually a common caliper. The brake motor comprises a stator 42 and a motor shaft 47, the brake comprises a reduction gear assembly and a motion conversion assembly, the reduction gear assembly is driven by the brake motor, the reduction gear assembly transmits rotary motion to the motion conversion assembly, and the motion conversion assembly converts the rotary motion into linear motion. In addition, the reduction gear assembly may also be integrated with the brake motor.
In some embodiments, the reduction gear assembly comprises a secondary reduction gear assembly 48 and a planetary reduction assembly 49, wherein the secondary reduction gear assembly comprises a meshed first-stage pinion and a second-stage big gear, the first-stage pinion is fixed with a motor shaft of a brake motor, an output shaft of the second-stage big gear is connected with an input end of the planetary reduction assembly, and the motion conversion assembly is a ball screw assembly. The motor shaft 47, the reduction gear assembly 48, and the planetary gear assembly 49 are sequentially driven to transmit rotational motion to the ball screw 52. The brake motor receives the control signal to operate, and through transmission, the rotation of the motor shaft is converted into the movement of the nut 52A on the ball screw, so that the brake disc 53 is pushed to move, and the brake disc 60 on the front wheel hub is clamped or loosened. The first brake motor 40 is provided with an encoder 43 to detect the motor position, improving the control accuracy.
The driver gives a braking instruction by pinching the right brake handle, the wheels are provided with wheel speed sensors, and the vehicle body is provided with an inertial sensor or the like (not shown). The motor control device calculates the braking demand of the wheel according to the signal reflecting the reaction force of the first sensor on the braking handle or simultaneously combining the information such as the wheel speed, the inertia and the like, generates a control signal and supplies the electric energy of the power supply to the braking executing mechanism of the wheel.
It will be appreciated that a combination of brake pedal and right brake handle may also be employed as the steering unit, as well as a cable 26 connected by a left brake handle 25. Similarly, the hinge connection between the brake pedal and the pedal bracket, the angle between the brake pedal and the pedal bracket and the angle between the brake pedal and the pedal bracket are reduced after the brake pedal is controlled, and the hinge or the elastic piece is provided with a first force sensor for detecting the reaction force received by the brake pedal when the brake pedal is controlled, the first force sensor is electrically connected with the second motor control device, and the first force sensor transmits signals to the second motor control device.
While the invention has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but includes, but is not limited to, the drawings and the description of the specific embodiments. Any modifications which do not depart from the functional and structural principles of the invention are intended to be included within the scope of the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511651705.4A CN121201004A (en) | 2025-11-12 | 2025-11-12 | Two-wheeled vehicles and their electromechanical braking systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511651705.4A CN121201004A (en) | 2025-11-12 | 2025-11-12 | Two-wheeled vehicles and their electromechanical braking systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN121201004A true CN121201004A (en) | 2025-12-26 |
Family
ID=98112550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511651705.4A Pending CN121201004A (en) | 2025-11-12 | 2025-11-12 | Two-wheeled vehicles and their electromechanical braking systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN121201004A (en) |
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2025
- 2025-11-12 CN CN202511651705.4A patent/CN121201004A/en active Pending
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