CN116826935A

CN116826935A - Vehicle charging methods, devices, computer equipment and storage media

Info

Publication number: CN116826935A
Application number: CN202311020827.4A
Authority: CN
Inventors: 张国栋; 于维东; 赵强; 李�瑞; 杨明臻; 徐利文; 穆俊达
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2023-09-29

Abstract

The present application relates to a vehicle charging method, apparatus, computer device, storage medium and computer program product. The method comprises the following steps: acquiring vehicle state data of a target vehicle to be charged, and determining to charge a battery of the target vehicle under the condition that the target vehicle meets charging conditions according to the vehicle state data; acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle; acquiring a target rotating speed of an engine in a target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed; and determining target charging power according to the motor charging permitted power, the battery charging permitted power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment. In this way, the charging efficiency is improved.

Description

Vehicle charging method, device, computer equipment and storage medium

Technical Field

The present application relates to the field of battery charging technology, and in particular, to a vehicle charging method, apparatus, computer device, storage medium, and computer program product.

Background

With the development of vehicle technology, hybrid-driven vehicles have been developed whose vehicle drive system is composed of a combination of two or more individual drive systems that can be operated simultaneously. For example, it relates to a thermal power source (generated by a gasoline engine or the like) and an electric power source (generated by a battery in combination with an electric motor). When the battery power is too low, the battery needs to be charged.

In the related art, under the condition of not externally connecting with charging, during charging, a driver needs to manually input a corresponding signal, and charging operation is performed according to the manually input signal. However, each charging requires a manual input operation by the driver, and there is a problem in that the efficiency of performing the vehicle charging operation is low.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a vehicle charging method, apparatus, computer device, computer-readable storage medium, and computer program product that are capable of improving vehicle charging efficiency.

In a first aspect, the present disclosure provides a vehicle charging method. The method comprises the following steps:

acquiring vehicle state data of a target vehicle to be charged, and determining to charge a battery of the target vehicle under the condition that the target vehicle is verified to meet a charging condition according to the vehicle state data;

Acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle;

acquiring a target rotating speed of an engine in the target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed;

and determining target charging power according to the motor permitted charging power, the battery permitted charging power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment.

In a second aspect, the application further provides a vehicle charging device. The device comprises:

the data acquisition module is used for acquiring vehicle state data of a target vehicle to be charged, and determining to charge a battery of the target vehicle under the condition that the target vehicle is verified to meet charging conditions according to the vehicle state data;

the power acquisition module is used for acquiring the allowable charging power of the target battery corresponding to the current charging moment and the threshold power of the high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle;

The rotating speed acquisition module is used for acquiring a target rotating speed of an engine in the target vehicle at the current charging moment and determining a target motor allowable charging power corresponding to the target rotating speed;

and the determining module is used for determining target charging power according to the motor permitted charging power, the battery permitted charging power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment.

In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor which when executing the computer program performs the steps of:

In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of:

The vehicle charging method, the vehicle charging device, the computer equipment, the storage medium and the computer program product ensure the safety and the effectiveness of the charging process by acquiring the vehicle state data of the target vehicle to be charged and determining to charge the battery of the target vehicle under the condition that the target vehicle meets the charging condition according to the vehicle state data. Acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle; acquiring a target rotating speed of an engine in a target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed; and determining target charging power according to the motor charging permitted power, the battery charging permitted power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment. That is, the target charging power for charging can be effectively evaluated by integrating the target motor allowable charging power, the target battery allowable charging power and the threshold power of the high-voltage line speed, and the automatic charging of the vehicle can be realized according to the target charging power, so that the vehicle charging efficiency is improved without the aid of the operation of manual input under the condition of ensuring the safety of the charging process.

Drawings

FIG. 1 is a diagram of an application environment for a vehicle charging method in one embodiment;

FIG. 2 is a flow chart of a method of charging a vehicle in one embodiment;

FIG. 3 is a schematic circuit diagram of a hybrid drive system in one embodiment;

FIG. 4 is a schematic diagram of a charging process in one embodiment;

FIG. 5 is a block diagram of a vehicle charging apparatus in one embodiment;

fig. 6 is an internal structural diagram of a computer device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

The vehicle charging method provided by the embodiment of the application can be applied to an application environment shown in fig. 1. The target vehicle 100 to be charged includes a hybrid vehicle controller 102 (Hybrid Control Unit, abbreviated as HCU) that communicates with a microcontroller 104 (Micro Controller Unit, abbreviated as MCU) through a network, and the hybrid vehicle controller 102 communicates with a battery system management controller 106 (Battery Management System, abbreviated as BMS) through the network.

The hybrid vehicle controller 102 obtains vehicle state data of a target vehicle to be charged, and determines to charge a battery of the target vehicle when the target vehicle is verified to meet charging conditions according to the vehicle state data; during the process of charging the battery of the target vehicle, the hybrid vehicle controller 102 acquires the target battery allowable charge power corresponding to the current charge time sent by the battery system management controller 106. The hybrid vehicle controller 102 obtains a threshold power of the high-voltage harness for electric power transmission. The hybrid vehicle controller 102 obtains a target rotating speed of an engine in a target vehicle at a current charging time, and the hybrid vehicle controller 102 determines a target motor allowable charging power which is sent by the microcontroller 104 and corresponds to the target rotating speed; the hybrid vehicle controller 102 determines a target charging power for completing an operation of charging the battery at a current charging time according to the motor allowable charging power, the battery allowable charging power, and the threshold power.

The hybrid vehicle controller 102 is used as a main controller of a hybrid system of a vehicle, and performs functions such as energy distribution and torque management of the whole system. The microcontroller 104 controls primarily between the various peripheral circuits and interface circuit connections of the vehicle. The battery system management controller 106 refers to a controller of a vehicle battery management system for supervising the battery state, preventing the battery from being overcharged, overdischarged, and the like.

In one embodiment, as shown in fig. 2, a vehicle charging method is provided, and the method is applied to the hybrid vehicle controller 102 in fig. 1 for illustration, and includes the following steps:

step S202, acquiring vehicle state data of a target vehicle to be charged, and determining to charge a battery of the target vehicle when the target vehicle is verified to satisfy a charging condition according to the vehicle state data.

Wherein the target vehicle is a vehicle determined to be charged, the target vehicle being a vehicle having a hybrid powertrain, including but not limited to commercial vehicles, heavy transportation vehicles, and automobiles. The vehicle state data is used for reflecting whether the current target vehicle has a charging condition, namely, the vehicle state data is used for reflecting whether the target vehicle is in a charging state so as to ensure safe charging and effective charging of the target vehicle. A target vehicle that satisfies the charging condition indicates that charging of the target vehicle is safe, and similarly, a target vehicle that does not satisfy the charging condition indicates that charging of the target vehicle is unsafe.

Optionally, the hybrid vehicle controller determines the hybrid vehicle as the target vehicle to be charged after determining that the hybrid vehicle needs to be charged. The hybrid power vehicle controller acquires vehicle state data of a target vehicle at the current moment, and checks whether the target vehicle meets a charging condition at the current moment according to the vehicle state data. And under the condition that the hybrid vehicle controller verifies that the target vehicle meets the charging condition at the current moment, the hybrid vehicle controller determines to charge the battery of the target vehicle.

Since the target vehicle is a hybrid vehicle, the battery of the target vehicle is charged, that is, the target vehicle is charged. The target vehicle is a vehicle that needs to be charged, but if the target vehicle does not satisfy the charging condition, such as if the target vehicle is still in motion, it is difficult to ensure the safety of charging if the target vehicle in motion is directly charged. On this account, in order to ensure the safety of charging, the charging operation may be performed only after the target vehicle satisfies the charging condition.

The hybrid vehicle controller determines whether the hybrid vehicle needs to be charged based on at least one of an operation duration, a driving range, and a state of charge of the hybrid vehicle.

When it is verified that the target vehicle satisfies the charging condition, it is determined that the battery of the target vehicle is charged, that is, the charging of the battery is started.

In some examples, prior to obtaining vehicle state data of the target vehicle to be charged, the method further comprises: and acquiring the charge state of the hybrid vehicle, and determining the hybrid vehicle as the target vehicle to be charged under the condition that the charge state is smaller than a charge state threshold value.

Wherein State Of Charge (SOC) is used to reflect the available charge Of the battery.

Optionally, the hybrid vehicle controller obtains a state of charge of the hybrid vehicle at a current time. And comparing the state of charge with a state of charge threshold by the hybrid vehicle controller, and determining the battery state of the hybrid vehicle as a state to be charged and determining the hybrid vehicle as a target vehicle to be charged under the condition that the state of charge is smaller than the state of charge threshold. And under the condition that the state of charge is not smaller than the state of charge threshold value, the hybrid vehicle controller determines that the battery state of the hybrid vehicle is not in a charged state, and does not acquire vehicle state data of the hybrid vehicle at the current moment.

Based on this, before acquiring the vehicle state data, by checking in advance whether the state of charge at the current time is smaller than the state of charge threshold, if the state of charge is checked to be smaller than the state of charge threshold, it is indicated that the electric quantity of the hybrid vehicle is insufficient at the current time, and at this time, the vehicle state data needs to be acquired, so that whether to perform the charging operation needs to be checked further. The charging operation is performed by the state of charge and the state of charge threshold value, so that invalid acquisition of vehicle state data is avoided, and the effectiveness and reliability of the charging operation are ensured.

In other embodiments, the method further comprises: the method comprises the steps that the hybrid vehicle controller obtains the running time of the hybrid vehicle at the current time, and the hybrid vehicle controller determines the hybrid vehicle as a target vehicle to be charged under the condition that the running time is smaller than a running time threshold value.

Based on the above, under the condition that the running time is smaller than the running time threshold, the fact that the electric quantity of the hybrid vehicle is insufficient at the current moment is indicated, and at the moment, vehicle state data are required to be acquired, whether charging operation is carried out or not is further checked, and effectiveness and reliability of the charging operation are ensured.

In other embodiments, the method further comprises: the hybrid vehicle controller acquires the driving distance of the hybrid vehicle at the current time, and determines the hybrid vehicle as a target vehicle to be charged under the condition that the driving distance is smaller than a driving distance threshold value.

Based on the above, under the condition that the driving distance is smaller than the driving distance threshold value, the condition that the electric quantity of the hybrid vehicle is insufficient at the current moment is indicated, and at the moment, vehicle state data are required to be acquired, so that whether charging operation is performed or not is required to be further checked, and the effectiveness and reliability of the charging operation are ensured.

In other embodiments, the method further comprises: the hybrid power vehicle controller obtains the charge state, the running time and the running mileage of the hybrid power vehicle at the current moment, and the hybrid power vehicle controller predicts the estimated charge state at the current moment according to the running time and the running mileage at the current moment. And under the condition that the state of charge at the current moment is smaller than the state of charge threshold value, if the difference value between the estimated state of charge and the state of charge is smaller than the difference value threshold value, determining that the state of charge at the current moment is effective, and determining the hybrid vehicle as a target vehicle to be charged by the hybrid vehicle controller. If the difference between the estimated state of charge and the state of charge is not smaller than the difference threshold, determining that the state of charge at the current time is invalid, acquiring the state of charge, the operation duration and the driving mileage at the next time again, and determining whether the state of charge at the next time is valid according to a similar process.

Based on the estimated state of charge at the current time, the estimated state of charge at the current time is estimated according to the running time and the running mileage at the current time. In this way, whether the state of charge acquired at the current moment is valid or not can be verified by estimating the state of charge. If the difference value between the estimated state of charge and the state of charge is smaller than a difference value threshold value, the state of charge at the current moment is determined to be effective, and the hybrid vehicle controller determines the hybrid vehicle as a target vehicle to be charged. In this way, the effectiveness and reliability of the charging operation are greatly increased.

Step S204, in the process of charging the battery of the target vehicle, the target battery allowable charging power corresponding to the current charging time and the threshold power of the high-voltage harness for electric energy transmission are acquired.

Wherein the charging time is the time during charging. The target battery allowable charge power refers to the maximum charge power of the battery at the current charge time. The threshold power refers to the power that can be maximally transmitted by the high voltage wire harness for electrical energy transmission.

Optionally, after determining to charge the battery of the target vehicle, the hybrid vehicle controller enters a charging process, and at this time, the hybrid vehicle controller determines the allowable charging power of the target battery at each charging time in real time. The hybrid power vehicle controller sends charging information containing the current charging time to the battery system management controller so as to instruct the battery system management controller to determine a corresponding battery charging stage according to the current charging time. And the battery system management controller determines the allowable charging power of the corresponding target battery according to the battery charging stage and sends the allowable charging power to the hybrid electric vehicle controller. The hybrid vehicle controller obtains threshold power of a high-voltage wire harness for electric energy transmission.

Illustratively, the battery system management controller determines a charge duration based on the current charge time and the initial charge time, and determines a corresponding battery charging stage based on the charge duration. For example, if the charging period is not greater than the first preset charging period, the battery system management controller determines that the battery charging phase is the first battery charging phase. The charging time length is longer than the first preset charging time length and is not longer than the second preset charging time length, and the battery system management controller determines that the battery charging stage is the second battery charging stage. The charging time length is longer than the second preset charging time length and is not longer than the third preset charging time length, and the battery system management controller determines that the battery charging stage is the third battery charging stage. Each battery charging stage corresponds to the variation trend of the allowable charging power of different batteries.

Step S206, obtaining a target rotating speed of the engine at the current charging time in the target vehicle, and determining a target motor allowable charging power corresponding to the target rotating speed.

The target rotating speed is the rotating speed of the motor at the current moment. The motor allowable charging power refers to the maximum motor charging power corresponding to the current target vehicle.

Optionally, the hybrid vehicle controller obtains a target rotational speed of an engine in the target vehicle at the current charging time. The hybrid power vehicle controller sends related information containing the target rotating speed to the microcontroller so as to instruct the microcontroller to determine the running time of the engine according to the current charging time and the initial charging time. The microcontroller determines the motor running state of the motor in the current target vehicle according to the engine running time, determines the allowable charging power of the target motor corresponding to the target rotating speed according to the motor running state, and sends the running charging power of the target motor to the hybrid vehicle controller.

The microcontroller determines that the motor operating state is a high-efficiency operating state if the engine operating time is not longer than the first preset engine operating time and not longer than the second preset engine operating time.

The starting time of the first preset engine operation time is the same as the starting time of the second preset engine operation time, and the time length of the first preset engine operation time is longer than the second preset engine operation time. Thus, it will be appreciated that the motor may be operated efficiently, i.e. in a high-efficiency operating state, for a relatively short period of time and that no high-efficiency operation is required, i.e. the corresponding motor operating state is in a continuous operating state, for a relatively long period of time, in order to ensure long-term operation of the motor.

In step S208, a target charging power is determined according to the motor allowable charging power, the battery allowable charging power, and the threshold power, the target charging power being used to complete the operation of charging the battery at the current charging time.

Optionally, the hybrid vehicle controller compares the motor allowable charge power, the battery allowable charge power and the threshold power, and determines the minimum power of the motor allowable charge power, the battery allowable charge power and the threshold power as the target charge power. The hybrid vehicle controller determines a target engine output torque at a current charging time according to the target charging power, and completes the operation of charging the battery at the current charging time by the target engine output torque.

The minimum power among the motor allowable charge power, the battery allowable charge power and the threshold power is taken as the target charge power, so that the target charge power at the current charge time can be ensured not to exceed the motor allowable charge power, the battery allowable charge power and the threshold power, and the safety and the effectiveness of the charging operation are ensured.

In the vehicle charging method, the vehicle state data of the target vehicle to be charged is acquired, and the battery of the target vehicle is determined to be charged under the condition that the target vehicle meets the charging condition according to the vehicle state data, so that the safety and the effectiveness of the charging process are ensured. Acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle; acquiring a target rotating speed of an engine in a target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed; and determining target charging power according to the motor charging permitted power, the battery charging permitted power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment. That is, the target charging power for charging can be effectively evaluated by integrating the target motor allowable charging power, the target battery allowable charging power and the threshold power of the high-voltage line speed, and the automatic charging of the vehicle can be realized according to the target charging power, so that the vehicle charging efficiency is improved without the aid of the operation of manual input under the condition of ensuring the safety of the charging process.

In some embodiments, the vehicle state data includes a vehicle speed of the target vehicle, an operating state of the engine, and an open-closed state of the charging tunnel, the method further comprising: checking whether the vehicle speed is smaller than a vehicle speed threshold value; and determining that the target vehicle meets the charging condition when the vehicle speed is smaller than the vehicle speed threshold value, the running state is a normal running state, and the opening and closing states are opening states.

The charging channel refers to a circuit for transmitting electric energy generated by the engine. The battery charging process is to provide driving force through the engine, drive the motor to generate electricity and provide electric energy for the battery. As shown in fig. 3, a schematic circuit diagram of a hybrid drive system in one embodiment is shown. The charging path refers to the electrical path from the engine to the high voltage assembly via the clutch. The charging path is shown by the dashed arrow in fig. 3. The engine is arranged below the cab of the target vehicle, i.e. the engine is arranged close to the head. The driving motor is located on one side of the engine, specifically on one side of the engine away from the headstock, and is arranged on the body. The body may be a frame that can function as a support. The clutch is disposed between the engine and the drive motor, and has a closed state and an open state. When the clutch is in a closed state, the engine is connected with the driving motor in parallel, and can simultaneously provide driving force for a driving axle of a target vehicle, so that the driving axle drives wheels to rotate; when the clutch is in the off state, the engine and the driving motor are independent of each other, and at this time, the driving force can be provided to the drive axle only through the driving motor. The gearbox is located the driving motor and is kept away from one side of clutch, and driving motor is with clutch and gearbox between, namely, hybrid drive system is P2 mixed mode. And when the parking is charged, the gearbox is in an N-gear state so as to ensure that the torque transmitted by the engine is disconnected at the gearbox and is not transmitted to the drive axle.

Optionally, the hybrid vehicle controller acquires the vehicle speed at the current moment and checks whether the vehicle speed is smaller than a vehicle speed threshold. The hybrid power vehicle controller checks whether the running state of the engine at the current moment is normal running or not, and checks whether the opening and closing state of the charging channel at the current moment is an opening state or not. And determining that the target vehicle meets a charging condition when the vehicle speed is smaller than the vehicle speed threshold, the running state is a normal running state, and the opening and closing states are opening states.

As shown in fig. 3, when the transmission is in N-range and the clutch is in the engaged state, the open-closed state of the charging passage is in an open state, at which time the electric power generated by the engine goes from the engine to the closed clutch to the high-voltage assembly. In this process, a safe charge is ensured, and it is necessary to ensure that the transmission is in N range, or to ensure that the brake pedal is depressed.

In some embodiments, the method further comprises: in the process of charging the battery of the target vehicle, the charging of the battery is stopped when the vehicle speed is not less than the vehicle speed threshold value, or when the operating state is an abnormal operating state, or when the open/close state is a closed state.

In the process of charging the battery of the target vehicle, if the vehicle speed is not less than the vehicle speed threshold value, or if the operating state is an abnormal operating state, or if the open/close state is a closed state, the safety of the charging process cannot be ensured, and therefore, at this time, it is necessary to stop charging the battery. Of course, the battery may be stopped from being charged when at least one of the vehicle speed is not less than the vehicle speed threshold value, the operation state is an abnormal operation state, and the open/close state is a closed state is satisfied.

In this way, in the charging process, when the vehicle speed is not less than the vehicle speed threshold, or when the operating state is an abnormal operating state, or when the open/close state is a closed state, the charging is stopped immediately, and the safety of the target vehicle is ensured.

In this embodiment, whether the current target vehicle is in a stationary state is determined by checking whether the vehicle speed is less than a vehicle speed threshold. When the vehicle speed is smaller than the vehicle speed threshold, the running state is a normal running state, and the opening and closing state is an opening state, that is, when the target vehicle is stationary, the engine is running normally, and the charging passage is opened normally, the safety charging state is determined, that is, the target vehicle is determined to meet the charging condition, so that the safety of the charging process is ensured.

In some embodiments, obtaining the target battery allowable charge power corresponding to the current charge time includes: determining a charging time according to the current charging time, acquiring a target temperature and a target state of charge of the battery after the charging time, and generating a first query instruction for querying the allowable charging power of the target battery according to the charging time, the target temperature and the target state of charge; the method comprises the steps of sending a first query instruction to a battery system management controller, wherein the first query instruction is used for indicating the battery system management controller to query the corresponding allowable charging power of a target battery from a query table corresponding to the charging duration according to the target temperature and the target state of charge; the lookup table stores the mapping relation between the battery temperature and the state of charge and the allowable charging power of the battery; the target battery allowable charge power transmitted by the battery system management controller is received.

The target temperature and the target state of charge after the charging time are the target temperature and the target state of charge corresponding to the current charging time.

Optionally, the hybrid vehicle controller determines the charging duration according to the current charging time and the initial charging time. The hybrid electric vehicle controller obtains the target temperature and the target state of charge after the charging time, and generates a first query instruction for querying the allowable charging power of the target battery according to the target temperature and the target state of charge. And the hybrid electric vehicle controller sends the first query instruction to the battery system management controller. And the battery system management controller determines a corresponding battery charging stage according to the charging time length and acquires a lookup table corresponding to the battery charging stage. And the battery system management controller determines the target battery allowable charge power corresponding to the target temperature and the target state of charge from the acquired lookup table, and sends the target battery allowable charge power to the hybrid vehicle controller.

The lookup table corresponding to the charging time length, that is, the lookup table corresponding to the battery charging stage.

Illustratively, the first, second, and third preset charge durations are 10 seconds, 20 seconds, and greater than 20 seconds, respectively. Each preset charging duration corresponds to a battery charging stage, and different battery charging stages have corresponding lookup tables reflecting the allowable charging power of the battery at a certain temperature and a certain state of charge. And stopping the charging process if the target battery allowable charging power is larger than the battery allowable power threshold after the battery system management controller obtains the target battery allowable charging power. Or sending a fault alarm signal to the hybrid vehicle controller to instruct the hybrid vehicle controller to stop the charging process.

In this embodiment, the charging time is determined according to the current charging time, the target temperature and the target state of charge of the battery after the charging time is elapsed are obtained in real time, and a first query instruction for querying the allowable charging power of the target battery is generated according to the charging time, the target temperature and the target state of charge. The method comprises the steps of sending a first query instruction to a battery system management controller, wherein the first query instruction is used for indicating the battery system management controller to accurately query the corresponding allowable charging power of a target battery from a query table corresponding to the charging time according to the target temperature and the target state of charge, so that the efficiency and the accuracy of the allowable charging power query of the target battery are ensured; the lookup table stores the mapping relation between the battery temperature and the state of charge and the allowable charging power of the battery; the target battery allowable charging power sent by the battery system management controller is directly received, and then the target charging power can be timely determined according to the target battery allowable charging power, and charging is timely performed at the current charging time.

In some embodiments, determining a target motor allowable charge power corresponding to the target rotational speed includes: generating a second query instruction for querying the allowable charging power of the corresponding target motor according to the target rotating speed; sending a second query instruction to the microcontroller, wherein the second query instruction is used for indicating the microcontroller to query the target motor allowable charging power corresponding to the target rotating speed from the mapping relation between the rotating speed and the motor allowable charging power; the target motor, which is sent by the microcontroller, is received to allow charging power.

Optionally, the hybrid electric vehicle controller obtains a target rotating speed and an engine running time of the engine at the current charging time, and generates a second query instruction for querying the allowable charging power of the corresponding target motor according to the target rotating speed and the engine running time. The second query includes a target rotational speed and an engine run length. The hybrid vehicle controller sends a second query instruction to the microcontroller. The microcontroller analyzes the second query instruction to obtain the target rotating speed. And the microcontroller determines a corresponding motor running state according to the running time of the engine, and acquires a motor mapping relation corresponding to the motor running state. The motor map is a map of the rotational speed and the motor allowable charge power. And the microcontroller determines the allowable charging power of the target motor corresponding to the target rotating speed according to the acquired motor mapping relation, and sends the allowable charging power of the target motor to the hybrid vehicle controller.

Wherein, the motor running states are different, and the corresponding motor mapping relations are also different.

Of course, if the duration between the current charging time and the initial charging time is not greater than the target duration, the hybrid vehicle controller obtains initial power, determines an initial output torque corresponding to the initial power, and charges the battery at the current charging time according to the initial output torque. If the duration between the current charging time and the initial charging time is greater than the target duration, the step of returning to step S204 is continuously executed. The initial output torque is obtained by comprehensively considering the fuel consumption rate of the engine, the vibration level of the engine body, the noise of the engine and the emission of the engine and combining the external characteristics of the engine torque and the limit values of the allowable charging power of the motor and the battery. The rotational speed corresponding to the initial output torque is set in an economic rotational speed interval between 1100 and 1500 rpm.

In the embodiment, a second query instruction for querying the allowable charging power of the corresponding target motor is generated according to the target rotating speed; and sending a second query instruction to the microcontroller, wherein the second query instruction is used for indicating the microcontroller to accurately query the target motor allowable charging power corresponding to the target rotating speed from the mapping relation between the rotating speed and the motor allowable charging power, so as to ensure the query efficiency and accuracy of the target motor allowable charging power. At this time, by receiving the target motor allowable charging power transmitted by the microcontroller, the target charging power can be determined in time according to the target motor allowable charging power, and charging can be performed at the current charging time in time.

In one embodiment, as shown in fig. 4, a schematic diagram of the charging process in one embodiment is shown. The present embodiment relates to a power CAN (Controller Area Network, controller area network bus) network and a new energy CAN network. The target motor allows charging power to be sent to the hybrid vehicle controller by the microcontroller in the power CAN network. The closing state of the clutch, the vehicle speed and the transmission gear signals are all sent to the hybrid vehicle controller by automatic gearbox control equipment (Transmission Control Unit, TCU for short) in a power CAN network. The charge state is that the battery system management controller sends the new energy CAN network to the hybrid vehicle controller.

That is, the hybrid vehicle controller determines the open/close state of the charging path based on the closed state of the clutch and the transmission gear signal transmitted by the micro control. And acquiring the running state of the engine, and determining vehicle state data according to the opening and closing state, the running state of the engine and the vehicle speed sent by the micro control.

Optionally, the hybrid vehicle controller obtains a state of charge of the hybrid vehicle, and determines the hybrid vehicle as the target vehicle to be charged if the state of charge is less than a state of charge threshold.

The hybrid vehicle controller acquires vehicle state data of a target vehicle to be charged, the vehicle state data including a vehicle speed of the target vehicle, an operating state of an engine, and an open-close state of a charging tunnel. Checking whether the vehicle speed is smaller than a vehicle speed threshold value; and determining that the target vehicle meets the charging condition when the vehicle speed is smaller than the vehicle speed threshold value, the running state is a normal running state, and the opening and closing states are opening states. And determining to charge the battery of the target vehicle under the condition that the target vehicle meets the charging condition according to the vehicle state data.

In the process of charging a battery of a target vehicle, the hybrid vehicle controller acquires threshold power of a high-voltage wire harness for electric energy transmission, which corresponds to the current charging time. The hybrid electric vehicle controller determines charging time according to the current charging time, acquires target temperature and target state of charge of the battery after the charging time, and generates a first query instruction for querying allowable charging power of the target battery according to the charging time, the target temperature and the target state of charge; the method comprises the steps of sending a first query instruction to a battery system management controller, wherein the first query instruction is used for indicating the battery system management controller to query the corresponding allowable charging power of a target battery from a query table corresponding to the charging duration according to the target temperature and the target state of charge; the lookup table stores the mapping relation between the battery temperature and the state of charge and the allowable charging power of the battery; the target battery allowable charge power transmitted by the battery system management controller is received.

The hybrid power vehicle controller generates a second query instruction for querying the allowable charging power of the corresponding target motor according to the target rotating speed; sending a second query instruction to the microcontroller, wherein the second query instruction is used for indicating the microcontroller to query the target motor allowable charging power corresponding to the target rotating speed from the mapping relation between the rotating speed and the motor allowable charging power; the target motor, which is sent by the microcontroller, is received to allow charging power.

The hybrid power vehicle controller obtains a target rotating speed of an engine in a target vehicle at the current charging moment, and determines a target motor allowable charging power corresponding to the target rotating speed; and determining the minimum power among the motor allowable charge power, the battery allowable charge power and the threshold power as target charge power by the hybrid vehicle controller, wherein the target charge power is used for completing the parking charging operation of the battery at the current charging moment.

In the process of charging the battery of the target vehicle, the hybrid vehicle controller stops charging the battery when the vehicle speed is not less than the vehicle speed threshold, or when the running state is an abnormal running state, or when the opening and closing state is a closed state.

In this embodiment, by acquiring the vehicle state data of the target vehicle to be charged, in the case where it is verified that the target vehicle satisfies the charging condition according to the vehicle state data, it is determined to charge the battery of the target vehicle, so as to ensure the safety and effectiveness of the charging process. Acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle; acquiring a target rotating speed of an engine in a target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed; and determining target charging power according to the motor charging permitted power, the battery charging permitted power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment. That is, the target charging power for charging can be effectively evaluated by integrating the target motor allowable charging power, the target battery allowable charging power and the threshold power of the high-voltage line speed, and the automatic charging of the vehicle can be realized according to the target charging power, so that the vehicle charging efficiency is improved without the aid of the operation of manual input under the condition of ensuring the safety of the charging process.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a vehicle charging device for realizing the vehicle charging method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation of one or more embodiments of the vehicle charging device provided below may refer to the limitation of the vehicle charging method hereinabove, and will not be repeated herein.

In one embodiment, as shown in fig. 5, there is provided a vehicle charging apparatus 500 including: a data acquisition module 502, a power acquisition module 504, a rotational speed acquisition module 506, and a determination module 508, wherein:

the data acquisition module 502 is configured to acquire vehicle state data of a target vehicle to be charged, and determine to charge a battery of the target vehicle when the target vehicle is verified to meet a charging condition according to the vehicle state data;

a power obtaining module 504, configured to obtain, during charging of a battery of a target vehicle, a target battery allowable charging power corresponding to a current charging time and a threshold power of a high-voltage harness for electric energy transmission;

a rotation speed obtaining module 506, configured to obtain a target rotation speed of an engine in a target vehicle at a current charging time, and determine a target allowable charging power of a target motor corresponding to the target rotation speed;

the determining module 508 is configured to determine a target charging power according to the motor allowable charging power, the battery allowable charging power, and the threshold power, where the target charging power is used to complete the operation of charging the battery at the current charging time.

In some embodiments, the data acquisition module 502 is further configured to acquire a state of charge of the hybrid vehicle, and determine the hybrid vehicle as the target vehicle to be charged if the state of charge is less than a state of charge threshold.

In some embodiments, the vehicle status data includes a vehicle speed of the target vehicle, an operating state of the engine, and an open-closed state of the charging tunnel, and the data acquisition module 502 is further configured to check whether the vehicle speed is less than a vehicle speed threshold; and determining that the target vehicle meets the charging condition when the vehicle speed is smaller than the vehicle speed threshold value, the running state is a normal running state, and the opening and closing states are opening states.

In some embodiments, the data obtaining module 502 is further configured to stop charging the battery when the vehicle speed is not less than the vehicle speed threshold, or when the running state is an abnormal running state, or when the opening and closing state is a closed state, during charging the battery of the target vehicle.

In some embodiments, the power obtaining module 504 is configured to determine a charging duration according to a current charging time, obtain a target temperature and a target state of charge of the battery after the charging duration, and generate a first query instruction for querying allowable charging power of the target battery according to the charging duration, the target temperature and the target state of charge; the method comprises the steps of sending a first query instruction to a battery system management controller, wherein the first query instruction is used for indicating the battery system management controller to query the corresponding allowable charging power of a target battery from a query table corresponding to the charging duration according to the target temperature and the target state of charge; the lookup table stores the mapping relation between the battery temperature and the state of charge and the allowable charging power of the battery; the target battery allowable charge power transmitted by the battery system management controller is received.

In some embodiments, the rotation speed obtaining module 506 is configured to generate, according to the target rotation speed, a second query instruction for querying the allowable charging power of the corresponding target motor; sending a second query instruction to the microcontroller, wherein the second query instruction is used for indicating the microcontroller to query the target motor allowable charging power corresponding to the target rotating speed from the mapping relation between the rotating speed and the motor allowable charging power; the target motor, which is sent by the microcontroller, is received to allow charging power.

Each of the modules in the vehicle charging apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a computer device is provided, which may be a server or a terminal, and the internal structure of the computer device may be as shown in fig. 6. The computer device includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a vehicle charging method.

It will be appreciated by those skilled in the art that the structure shown in FIG. 6 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

In one embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of: acquiring vehicle state data of a target vehicle to be charged, and determining to charge a battery of the target vehicle under the condition that the target vehicle meets charging conditions according to the vehicle state data; acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle; acquiring a target rotating speed of an engine in a target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed; and determining target charging power according to the motor charging permitted power, the battery charging permitted power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment.

In one embodiment, the processor when executing the computer program further performs the steps of: and acquiring the charge state of the hybrid vehicle, and determining the hybrid vehicle as the target vehicle to be charged under the condition that the charge state is smaller than a charge state threshold value.

In one embodiment, the vehicle state data includes a vehicle speed of the target vehicle, an operating state of the engine, and an open-closed state of the charging tunnel, and the processor when executing the computer program further performs the steps of: checking whether the vehicle speed is smaller than a vehicle speed threshold value; and determining that the target vehicle meets the charging condition when the vehicle speed is smaller than the vehicle speed threshold value, the running state is a normal running state, and the opening and closing states are opening states.

In one embodiment, the processor when executing the computer program further performs the steps of: in the process of charging the battery of the target vehicle, the charging of the battery is stopped when the vehicle speed is not less than the vehicle speed threshold value, or when the operating state is an abnormal operating state, or when the open/close state is a closed state.

In one embodiment, the processor when executing the computer program further performs the steps of: determining a charging time according to the current charging time, acquiring a target temperature and a target state of charge of the battery after the charging time, and generating a first query instruction for querying the allowable charging power of the target battery according to the charging time, the target temperature and the target state of charge; the method comprises the steps of sending a first query instruction to a battery system management controller, wherein the first query instruction is used for indicating the battery system management controller to query the corresponding allowable charging power of a target battery from a query table corresponding to the charging duration according to the target temperature and the target state of charge; the lookup table stores the mapping relation between the battery temperature and the state of charge and the allowable charging power of the battery; the target battery allowable charge power transmitted by the battery system management controller is received.

In one embodiment, the processor when executing the computer program further performs the steps of: generating a second query instruction for querying the allowable charging power of the corresponding target motor according to the target rotating speed; sending a second query instruction to the microcontroller, wherein the second query instruction is used for indicating the microcontroller to query the target motor allowable charging power corresponding to the target rotating speed from the mapping relation between the rotating speed and the motor allowable charging power; the target motor, which is sent by the microcontroller, is received to allow charging power.

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring vehicle state data of a target vehicle to be charged, and determining to charge a battery of the target vehicle under the condition that the target vehicle meets charging conditions according to the vehicle state data; acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle; acquiring a target rotating speed of an engine in a target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed; and determining target charging power according to the motor charging permitted power, the battery charging permitted power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment.

In one embodiment, the computer program when executed by the processor further performs the steps of: and acquiring the charge state of the hybrid vehicle, and determining the hybrid vehicle as the target vehicle to be charged under the condition that the charge state is smaller than a charge state threshold value.

In one embodiment, the vehicle state data includes a vehicle speed of the target vehicle, an operating state of the engine, and an open-closed state of the charging tunnel, and the computer program when executed by the processor further performs the steps of: checking whether the vehicle speed is smaller than a vehicle speed threshold value; and determining that the target vehicle meets the charging condition when the vehicle speed is smaller than the vehicle speed threshold value, the running state is a normal running state, and the opening and closing states are opening states.

In one embodiment, the computer program when executed by the processor further performs the steps of: in the process of charging the battery of the target vehicle, the charging of the battery is stopped when the vehicle speed is not less than the vehicle speed threshold value, or when the operating state is an abnormal operating state, or when the open/close state is a closed state.

In one embodiment, the computer program when executed by the processor further performs the steps of: determining a charging time according to the current charging time, acquiring a target temperature and a target state of charge of the battery after the charging time, and generating a first query instruction for querying the allowable charging power of the target battery according to the charging time, the target temperature and the target state of charge; the method comprises the steps of sending a first query instruction to a battery system management controller, wherein the first query instruction is used for indicating the battery system management controller to query the corresponding allowable charging power of a target battery from a query table corresponding to the charging duration according to the target temperature and the target state of charge; the lookup table stores the mapping relation between the battery temperature and the state of charge and the allowable charging power of the battery; the target battery allowable charge power transmitted by the battery system management controller is received.

In one embodiment, the computer program when executed by the processor further performs the steps of: generating a second query instruction for querying the allowable charging power of the corresponding target motor according to the target rotating speed; sending a second query instruction to the microcontroller, wherein the second query instruction is used for indicating the microcontroller to query the target motor allowable charging power corresponding to the target rotating speed from the mapping relation between the rotating speed and the motor allowable charging power; the target motor, which is sent by the microcontroller, is received to allow charging power.

In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, performs the steps of: acquiring vehicle state data of a target vehicle to be charged, and determining to charge a battery of the target vehicle under the condition that the target vehicle meets charging conditions according to the vehicle state data; acquiring allowable charging power of a target battery corresponding to the current charging time and threshold power of a high-voltage wire harness for electric energy transmission in the process of charging the battery of the target vehicle; acquiring a target rotating speed of an engine in a target vehicle at the current charging time, and determining a target motor allowable charging power corresponding to the target rotating speed; and determining target charging power according to the motor charging permitted power, the battery charging permitted power and the threshold power, wherein the target charging power is used for completing the operation of charging the battery at the current charging moment.

It should be noted that, the user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data need to comply with the related laws and regulations and standards of the related country and region.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. A method of charging a vehicle, the method comprising:

2. The method according to claim 1, wherein before the acquiring the vehicle state data of the target vehicle to be charged, the method further comprises:

and acquiring the charge state of the hybrid vehicle, and determining the hybrid vehicle as a target vehicle to be charged under the condition that the charge state is smaller than a charge state threshold value.

3. The method according to claim 1, wherein the vehicle state data includes a vehicle speed of the target vehicle, an operating state of an engine, and an open-close state of a charging passage, the method further comprising:

checking whether the vehicle speed is smaller than a vehicle speed threshold value;

and determining that the target vehicle meets a charging condition when the vehicle speed is smaller than the vehicle speed threshold, the running state is a normal running state, and the opening and closing state is an opening state.

4. A method according to claim 3, characterized in that the method further comprises:

in the process of charging the battery of the target vehicle, in the case where the vehicle speed is not less than the vehicle speed threshold value, or in the case where the operating state is an abnormal operating state, or in the case where the open/close state is a closed state, the charging of the battery is stopped.

5. The method of claim 1, wherein the obtaining the target battery allowable charge power corresponding to the current charge time comprises:

determining a charging time according to the current charging time, acquiring a target temperature and a target state of charge of the battery after the charging time, and generating a first query instruction for querying allowable charging power of the target battery according to the charging time, the target temperature and the target state of charge;

the first query instruction is sent to a battery system management controller, and the first query instruction is used for indicating the battery system management controller to query the corresponding allowable charging power of the target battery from a query table corresponding to the charging duration according to the target temperature and the target state of charge; the lookup table stores the mapping relation between the battery temperature and the charge state and the allowable charging power of the battery;

The target battery allowable charge power transmitted by the battery system management controller is received.

6. The method of claim 1, wherein the determining a target motor allowable charge power corresponding to the target rotational speed comprises:

generating a second query instruction for querying the allowable charging power of the corresponding target motor according to the target rotating speed;

the second inquiry instruction is sent to a microcontroller, and the second inquiry instruction is used for indicating the microcontroller to inquire out the target motor allowable charging power corresponding to the target rotating speed from the mapping relation between the rotating speed and the motor allowable charging power;

receiving the target motor allowable charging power transmitted by the microcontroller.

7. A vehicle charging apparatus, characterized in that the apparatus comprises:

8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.

9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.