Vehicle control method, device, medium, controller and vehicle

Abstract

The present disclosure relates to a vehicle control method, device, medium, controller and vehicle, which can better manage the torque peak assist so that the vehicle can obtain a larger instantaneous acceleration and prevent the power battery from being over-discharged. The method includes: obtaining the remaining power and first temperature information of the vehicle power battery; obtaining the second temperature information of the vehicle drive motor; obtaining the assist intention information indicating whether the driver has an assist torque peak demand; determining whether the vehicle has the ability to assist the torque peak according to the remaining power, the first temperature information and the second temperature information; if it is determined that the vehicle has the ability to assist the torque peak, and the assist intention information indicates that the driver has an assist torque peak demand, controlling the vehicle to enter the torque peak assist mode.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicles, and in particular, to a vehicle control method, device, medium, controller and vehicle. Background Art

[0002] When a hybrid vehicle starts, the drive motor can provide greater torque than the engine. Therefore, the drive motor is usually used to provide torque assistance to the vehicle to improve the vehicle's instantaneous acceleration. In addition, a power battery is usually used to power the drive motor's torque assistance. That is, the power battery outputs a certain amount of power to the drive motor so that the drive motor provides torque assistance. However, in this process, if the power provided by the power battery is too small, it will not be able to meet the requirements for improving instantaneous acceleration. If the power provided by the power battery is too large, it may exceed the tolerable range of the power battery, causing power battery failure or even damage. How to control the torque assistance of the drive motor is an urgent problem that needs to be solved. Summary of the invention

[0003] The purpose of the present disclosure is to provide a vehicle control method, device, medium, controller and vehicle, which can better manage the torque peak assist so that the vehicle can obtain greater instantaneous acceleration.

[0004] In order to achieve the above objective, according to a first aspect of the present disclosure, a vehicle control method is provided, the method comprising:

[0005] Obtaining remaining power and first temperature information of a vehicle power battery;

[0006] Acquiring second temperature information of a vehicle driving motor;

[0007] acquiring power assist intention information indicating whether a driver has a power assist torque peak demand;

[0008] determining whether the vehicle has a capability of assisting peak torque according to the remaining power, the first temperature information, and the second temperature information;

[0009] If it is determined that the vehicle has the ability to assist with peak torque, and the assistance intention information indicates that the driver has a demand for assisting with peak torque, the vehicle is controlled to enter a torque peak assistance mode.

[0010] Optionally, determining whether the vehicle has the ability to assist the peak torque according to the remaining power, the first temperature information, and the second temperature information includes:

[0011] If the remaining power of the power battery is greater than a preset power threshold, the temperature indicated by the first temperature information is within a first temperature range, and the temperature indicated by the second temperature information is within a second temperature range, it is determined that the vehicle has the ability to assist peak torque.

[0012] Optionally, after the step of controlling the vehicle to enter the torque peak assist mode, the method further includes:

[0013] Before the vehicle completely enters the torque peak power-assist mode, determining a first target torque to be output according to a maximum peak torque and a maximum steady-state torque of the drive motor that can be provided by the power battery, as well as a reserved torque and a power-assistance activation factor of the drive motor;

[0014] The driving motor is controlled to output the first target torque.

[0015] Optionally, the method further comprises:

[0016] After the vehicle completely enters the torque peak power-assisting mode, determining the maximum peak torque of the drive motor that can be provided by the power battery as the second target torque to be output;

[0017] The driving motor is controlled to output the second target torque.

[0018] Optionally, after the step of controlling the vehicle to enter the torque peak assist mode, the method further includes:

[0019] determining whether the vehicle meets an exit condition of the torque peak assist mode;

[0020] When it is determined that the vehicle satisfies the exit condition, the vehicle is controlled to exit the torque peak assist mode.

[0021] Optionally, the determining whether the vehicle satisfies an exit condition of the torque peak assist mode includes:

[0022] When the duration of the vehicle completely entering the torque peak assist mode reaches a preset duration, determining that the vehicle meets the exit condition; or,

[0023] The determining whether the vehicle satisfies the exit condition of the torque peak assist mode includes:

[0024] Acquiring electrical parameters of the power battery;

[0025] Determining whether the power battery has the ability to assist the peak torque according to the electrical parameters;

[0026] If it is determined that the power battery no longer has the ability to assist the peak torque, it is determined that the vehicle meets the exit condition.

[0027] According to a second aspect of the present disclosure, there is provided a vehicle control device, the device comprising:

[0028] A first acquisition module, used to acquire the remaining power and first temperature information of the vehicle power battery;

[0029] A second acquisition module, used to acquire second temperature information of the vehicle drive motor;

[0030] A third acquisition module is used to acquire power assist intention information indicating whether the driver has a power assist torque peak demand;

[0031] a first determination module, configured to determine whether the vehicle has the ability to assist the peak torque according to the remaining power, the first temperature information, and the second temperature information;

[0032] The first control module is used to control the vehicle to enter a torque peak assist mode if it is determined that the vehicle has the ability to assist the peak torque and the assist intention information indicates that the driver has a need for assisting the peak torque.

[0033] Optionally, the first determining module includes:

[0034] The first determination submodule is used to determine that the vehicle has the ability to assist the peak torque if the remaining power of the power battery is greater than a preset power threshold, the temperature indicated by the first temperature information is within a first temperature range, and the temperature indicated by the second temperature information is within a second temperature range.

[0035] Optionally, the device further comprises:

[0036] a second determination module, configured to determine a first target torque to be output according to a maximum peak torque and a maximum steady-state torque of the drive motor that can be provided by the power battery, a reserved torque of the drive motor and a power-assistance activation factor, after the first control module controls the vehicle to enter the torque peak power-assistance mode and before the vehicle completely enters the torque peak power-assistance mode;

[0037] The second control module is used to control the driving motor to output the first target torque.

[0038] Optionally, the device further comprises:

[0039] a third determination module, configured to determine, after the vehicle completely enters the torque peak power-assisting mode, a maximum peak torque of the drive motor that can be provided by the power battery as a second target torque to be output;

[0040] The third control module is used to control the driving motor to output the second target torque.

[0041] Optionally, the device further comprises:

[0042] a judgment module, configured to judge whether the vehicle satisfies an exit condition of the torque peak power-assisting mode after the first control module controls the vehicle to enter the torque peak power-assisting mode;

[0043] A fourth control module is used to control the vehicle to exit the torque peak assist mode when it is determined that the vehicle meets the exit condition.

[0044] Optionally, the judging module includes:

[0045] A first judgment submodule is configured to determine that the vehicle satisfies the exit condition when the duration of the vehicle completely entering the torque peak assist mode reaches a preset duration; or,

[0046] The judging module comprises:

[0047] An acquisition submodule, used to acquire electrical parameters of the power battery;

[0048] A second determination submodule, used to determine whether the power battery has the ability to assist the peak torque according to the electrical parameters;

[0049] The judgment module is used to determine that the vehicle meets the exit condition if it is determined that the power battery no longer has the ability to assist the peak torque.

[0050] According to a third aspect of the present disclosure, a non-temporary computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the steps of the method described in the first aspect of the present disclosure are implemented.

[0051] According to a fourth aspect of the present disclosure, there is provided a controller, comprising:

[0052] a memory having a computer program stored thereon;

[0053] A processor is used to execute the computer program in the memory to implement the steps of the method described in the first aspect of the present disclosure.

[0054] According to a fifth aspect of the present disclosure, a vehicle is provided, comprising the controller described in the fourth aspect of the present disclosure.

[0055] Through the above technical solution, the remaining power and first temperature information of the vehicle power battery are obtained, and the second temperature information of the vehicle drive motor is obtained, and then the vehicle is determined to have the ability to assist the peak torque according to the remaining power, the first temperature information and the second temperature information. At the same time, it may be used to indicate whether the driver has the need for the peak torque. If it is determined that the vehicle has the ability to assist the peak torque, and the assistance intention information indicates that the driver has the need for the peak torque, the vehicle is controlled to enter the torque peak assistance mode. In this way, it is determined whether the vehicle has the ability to assist the peak torque through the real-time working parameters of the power battery and the drive motor, and it is determined whether the driver has the need for the peak torque, so that when the driver has the need for the peak torque and the vehicle has the ability to assist the peak torque, the vehicle is controlled to enter the torque peak assistance mode. In the torque peak assistance mode, the power battery supplies power to the drive motor so that the drive motor outputs the assistance torque, so that the vehicle can obtain a larger instantaneous acceleration to meet the need for the peak torque.

[0056] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0058] Figure 1 is a flow chart of a vehicle control method provided according to an embodiment of the present disclosure;

[0059] Figure 2 is a flow chart of a vehicle control method provided according to another embodiment of the present disclosure;

[0060] Figure 3 is a block diagram of a vehicle control device provided according to an embodiment of the present disclosure;

[0061] Figure 4 is a block diagram of a controller according to an exemplary embodiment. DETAILED DESCRIPTION

[0062] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0063] Figure 1 FIG. 1 is a flow chart of a vehicle control method provided according to an embodiment of the present disclosure. Figure 1As shown, the method provided by the present disclosure may include steps 11 to 15.

[0064] In step 11, the remaining power and first temperature information of the vehicle power battery are obtained.

[0065] In step 12, second temperature information of the vehicle drive motor is obtained.

[0066] In step 13 , assist intention information indicating whether the driver has an assist torque peak demand is obtained.

[0067] In a possible embodiment, a start button for a torque peak assist mode may be provided for the driver on the vehicle. When the user triggers the start button to start the torque peak assist mode, it indicates that the user has a peak assist torque demand. At this time, assist intention information indicating that the driver has a peak assist torque demand can be obtained.

[0068] In another possible embodiment, the power assistance intention information can be obtained through the driver's driving operation, and the corresponding relationship between the driver's driving operation and whether there is a peak power assistance torque demand can be preset, so that the power assistance intention information can be obtained according to the driver's actual driving operation and the above corresponding relationship. For example, if the power assistance intention information is set to be obtained through the operation of the driver stepping on the accelerator pedal, and it is preset that the accelerator pedal opening exceeds a preset opening threshold or the accelerator pedal opening rate exceeds a preset change rate threshold to correspond to the presence of a peak power assistance torque demand, then if it is detected that the accelerator pedal opening exceeds the preset opening threshold, the power assistance intention information indicating that the driver has a peak power assistance torque demand can be obtained at this time.

[0069] It should be noted that there is no strict execution order for the above steps 11, 12, and 13. They can be acquired one after another or simultaneously. The size of the step number is not used to limit the execution order of the steps.

[0070] In step 14, it is determined whether the vehicle has the ability to assist the peak torque according to the remaining power, the first temperature information and the second temperature information.

[0071] In a possible embodiment, step 14 may include the following steps:

[0072] If the remaining power of the power battery is greater than a preset power threshold, the temperature indicated by the first temperature information is within a first temperature range, and the temperature indicated by the second temperature information is within a second temperature range, it is determined that the vehicle has the ability to assist the peak torque.

[0073] Among them, the preset power threshold can be set to a value corresponding to sufficient remaining battery power. In this way, when the remaining power of the power battery is greater than the preset power threshold, it means that the remaining power of the power battery is sufficient and can provide the power required to assist the peak torque. The first temperature range can be set by the temperature range in which the power battery is suitable for operation. When the temperature indicated by the first temperature information is in the first temperature range, it means that the power battery is suitable for operation. The second temperature range can be set by the temperature range in which the drive motor is suitable for operation. When the temperature indicated by the second temperature information is in the second temperature range, it means that the drive motor is suitable for operation. In summary, when the remaining power of the power battery is greater than the preset power threshold, the temperature indicated by the first temperature information is in the first temperature range, and the temperature indicated by the second temperature information is in the second temperature range, it means that the remaining power of the power battery is sufficient, and the power battery and the drive motor are both operating at a suitable temperature, and then it can be determined that the vehicle has the ability to assist the peak torque.

[0074] In step 15, if it is determined that the vehicle has the ability to assist the peak torque, and the assist intention information indicates that the driver has a demand for assisting the peak torque, the vehicle is controlled to enter the peak torque assist mode.

[0075] When it is determined that the vehicle has the ability to assist the peak torque and the assist intention information indicates that the driver has a need for assisting the peak torque, the vehicle can be controlled to enter the peak torque assist mode. In the peak torque assist mode, the power battery supplies power to the drive motor so that the drive motor outputs assist torque, thereby enabling the vehicle to obtain a larger instantaneous acceleration to meet the peak torque requirement.

[0076] Through the above technical solution, the remaining power and first temperature information of the vehicle power battery are obtained, and the second temperature information of the vehicle drive motor is obtained, and then the vehicle is determined to have the ability to assist the peak torque according to the remaining power, the first temperature information and the second temperature information. At the same time, it may be combined with the power assist intention information used to indicate whether the driver has a need for the peak torque. If it is determined that the vehicle has the ability to assist the peak torque, and the power assist intention information indicates that the driver has a need for the peak torque, the vehicle is controlled to enter the torque peak assist mode. In this way, it is determined whether the vehicle has the ability to assist the peak torque through the real-time working parameters of the power battery and the drive motor, and it is determined whether the driver has a need for the peak torque. Thus, when the driver has a need for the peak torque and the vehicle has the ability to assist the peak torque, the vehicle is controlled to enter the torque peak assist mode. In the torque peak assist mode, the power battery supplies power to the drive motor so that the drive motor outputs the assist torque, so that the vehicle can obtain a larger instantaneous acceleration to meet the need for the peak torque.

[0077] In a possible implementation, after step 15, the method provided by the present disclosure may further include the following steps:

[0078] Before the vehicle fully enters the torque peak power-assist mode, a first target torque to be output is determined based on the maximum peak torque and maximum steady-state torque that the power battery can provide to the drive motor, the reserved torque of the drive motor, and the power-assist activation factor;

[0079] The driving motor is controlled to output a first target torque.

[0080] Since the vehicle's entry into the torque peak assist mode is not instantaneous, it takes a certain amount of time from the beginning of entering the torque peak assist mode to the complete entry into the torque peak assist mode. During this period, the control of the drive motor torque is not constant, but changes gradually.

[0081] For example, according to the maximum peak torque and the maximum steady-state torque that the power battery can provide to the drive motor, as well as the reserved torque and the power assist activation factor of the drive motor, determining the first target torque to be output may include the following steps:

[0082] determining a torque difference between the maximum peak torque and the reserve torque;

[0083] determining the larger of the torque difference value and the maximum steady-state torque as the target torque value;

[0084] The first target torque M is determined according to the following formula:

[0085] M=M1*k+M2*(1-k)

[0086] Among them, M1 is the target torque value, M2 is the maximum steady-state torque, and k is the power assist activation factor.

[0087] The reserved torque changes with the vehicle speed. The greater the vehicle speed, the smaller the reserved torque. The corresponding relationship between the two can be preset.

[0088] The maximum peak torque is the torque output by the drive motor at the maximum peak power, where the maximum peak power is the maximum discharge power that the power battery can provide in the torque peak assist mode.

[0089] The maximum steady-state torque is the torque output by the drive motor at the maximum steady-state power, where the maximum steady-state power is the maximum discharge power that the power battery can provide under normal vehicle driving conditions (non-torque peak assist mode).

[0090] The power assist activation factor is a value in the range of [0,1]. From the beginning of entering the torque peak assist mode to the process of fully entering the torque peak assist mode, the power assist activation factor gradually increases from 0 to 1. Correspondingly, from being in the torque peak assist mode to completely exiting the torque peak assist mode, the power assist activation factor gradually decreases from 1 to 0. In other words, when the power assist activation factor is 0, the power battery provides steady-state discharge power (maximum steady-state power) to the drive motor. When the power assist activation factor is not 0, the power battery begins to provide peak discharge power (maximum peak power) to the drive motor. Among them, the change and value of the power assist activation factor can be pre-set according to demand.

[0091] In a possible embodiment, controlling the drive motor to output the first target torque may include the following steps:

[0092] determining a first output power corresponding to a first target torque;

[0093] The power battery is controlled to output a first output power to the drive motor so that the drive motor outputs a first target torque.

[0094] As mentioned above, the power battery outputs power to the drive motor so that the drive motor outputs torque. Therefore, the output torque of the drive motor depends on the output power provided by the power battery. In other words, to control the output torque of the drive motor, it is necessary to first control the output power of the power battery.

[0095] Generally speaking, there is a fixed calculation relationship between the output power of the power battery and the output torque of the drive motor. Therefore, after determining the first target torque, the first output power corresponding to the first target torque can be determined, and the power battery can be controlled to output the first output power to the drive motor so that the drive motor outputs the first target torque.

[0096] Through the above method, in the process of starting to enter the torque peak assist mode to fully entering the torque peak assist mode, limiting the torque output of the drive motor can prevent damage to the drive motor and over-discharge of the power battery, thereby ensuring vehicle safety.

[0097] In one possible implementation, except Figure 1 In addition to the steps shown, the method provided by the present disclosure may also include the following steps:

[0098] After the vehicle completely enters the torque peak power-assist mode, the maximum peak torque that the power battery can provide to the drive motor is determined as the second target torque to be output;

[0099] The driving motor is controlled to output a second target torque.

[0100] After the vehicle completely enters the torque peak power-assist mode, the drive motor can be directly made to reach the maximum peak torque, so that the vehicle can obtain a greater instantaneous acceleration. Therefore, the maximum peak torque can be directly determined as the second target torque to be output and the drive motor can be controlled to output the second target torque.

[0101] As described above, there is a fixed calculation relationship between the output power of the power battery and the output torque of the drive motor. Therefore, after determining the second target torque, the second output power corresponding to the second target torque can be determined, and the power battery can be controlled to output the second output power to the drive motor so that the drive motor outputs the second target torque.

[0102] It should be noted that the maximum peak torque is the torque output by the drive motor at the maximum peak power. Therefore, controlling the drive motor to output the above-mentioned second target torque is equivalent to controlling the power battery to output the maximum peak power to the drive motor.

[0103] In a possible implementation, after step 15, the method provided by the present disclosure may further include the following steps: Figure 2 shown.

[0104] In step 21 , it is determined whether the vehicle meets the exit condition of the torque peak assist mode.

[0105] In a possible embodiment, step 21 may include the following steps:

[0106] When the time that the vehicle has fully entered the torque peak assist mode reaches a preset time, it is determined that the vehicle meets the exit conditions.

[0107] For example, it can be determined that the vehicle has completely entered the torque peak assist mode in the following manner:

[0108] The actual discharge power of the power battery is greater than the maximum steady-state power of the power battery; and,

[0109] The actual discharge power of the power battery is greater than the rated power of the power battery.

[0110] When both of the above conditions are met, it means that the vehicle is completely in the torque peak power-assist mode. When the duration of the vehicle being completely in the torque peak power-assist mode reaches a preset duration, it can be determined that the vehicle meets the exit condition. For example, the preset duration can be 2.5s.

[0111] The above-mentioned exit conditions can ensure that the vehicle is in the torque peak assist mode for a short period of time, and immediately exit the torque peak assist mode if the preset time is exceeded, which can effectively avoid over-discharge of the power battery.

[0112] In another possible embodiment, step 21 may include the following steps:

[0113] Obtaining electrical parameters of the power battery;

[0114] Determine whether the power battery has the ability to assist the peak torque based on electrical parameters;

[0115] If it is determined that the power battery no longer has the ability to assist the peak torque, it is determined that the vehicle meets the exit conditions.

[0116] Among them, the electrical parameters of the power battery may include discharge power, voltage, etc.

[0117] For example, if the electrical parameter includes discharge power, determining whether the power battery has the ability to assist the peak torque according to the electrical parameter may include the following steps:

[0118] If the actual discharge power of the power battery is greater than the maximum peak power of the power battery, it is determined that the power battery does not have the ability to assist the peak torque.

[0119] For another example, if the electrical parameter includes voltage,

[0120] Determining whether the power battery has the ability to assist the peak torque according to the electrical parameters may include the following steps:

[0121] If the actual voltage of the power battery is less than the rated voltage, it is determined that the power battery does not have the ability to assist the peak torque.

[0122] The calibration voltage can be obtained by looking up the actual remaining power and actual temperature of the power battery in a table, and the table can store the corresponding relationship between the remaining power of the power battery, the power battery temperature and the power battery voltage.

[0123] In step 22 , when it is determined that the vehicle meets the exit condition, the vehicle is controlled to exit the torque peak assist mode.

[0124] Through the above solution, the timing of exiting the torque peak assist mode can be accurately controlled, which can effectively avoid damage to the power battery or drive motor caused by over-discharge of the power battery and improve vehicle safety.

[0125] In addition, it should be noted that, based on the above exit conditions, step 15 may further include:

[0126] If it is determined that the vehicle has the ability to assist peak torque, and the assist intention information indicates that the driver has a need for assist peak torque, and at the same time, it is determined that the vehicle does not meet any exit conditions provided in the present disclosure, the vehicle is controlled to enter the torque peak assist mode.

[0127] That is to say, although the vehicle has the ability to assist the peak torque, and the assist intention information indicates that the driver has the need to assist the peak torque, it is necessary to further ensure that the vehicle does not meet any exit conditions before the vehicle can be controlled to enter the peak torque assist mode. In this way, the timing of the vehicle entering the peak torque assist can be controlled more accurately, improving the accuracy of vehicle control.

[0128] Figure 3 is a block diagram of a vehicle control device provided according to an embodiment of the present disclosure. Figure 3 As shown, the device 30 may include:

[0129] A first acquisition module 31 is used to acquire the remaining power and first temperature information of the vehicle power battery;

[0130] A second acquisition module 32, used to acquire second temperature information of the vehicle drive motor;

[0131] A third acquisition module 33 is used to acquire power assist intention information indicating whether the driver has a power assist torque peak demand;

[0132] A first determination module 34, configured to determine whether the vehicle has the ability to assist the peak torque according to the remaining power, the first temperature information and the second temperature information;

[0133] The first control module 35 is configured to control the vehicle to enter a peak torque assist mode if it is determined that the vehicle has the ability to assist with peak torque and the assist intention information indicates that the driver has a demand for assisting with peak torque.

[0134] Optionally, the first determining module 34 includes:

[0135] The first determination submodule is used to determine that the vehicle has the ability to assist the peak torque if the remaining power of the power battery is greater than a preset power threshold, the temperature indicated by the first temperature information is within a first temperature range, and the temperature indicated by the second temperature information is within a second temperature range.

[0136] Optionally, the device 30 further includes:

[0137] a second determination module, configured to determine a first target torque to be output according to a maximum peak torque and a maximum steady-state torque of the drive motor that can be provided by the power battery, a reserved torque of the drive motor and a power-assistance activation factor, after the first control module controls the vehicle to enter the torque peak power-assistance mode and before the vehicle completely enters the torque peak power-assistance mode;

[0138] The second control module is used to control the driving motor to output the first target torque.

[0139] Optionally, the device 30 further includes:

[0140] a third determination module, configured to determine, after the vehicle completely enters the torque peak power-assisting mode, a maximum peak torque of the drive motor that can be provided by the power battery as a second target torque to be output;

[0141] The third control module is used to control the driving motor to output the second target torque.

[0142] Optionally, the device 30 further includes:

[0143] a judgment module, configured to judge whether the vehicle satisfies an exit condition of the torque peak power-assisting mode after the first control module controls the vehicle to enter the torque peak power-assisting mode;

[0144] A fourth control module is used to control the vehicle to exit the torque peak assist mode when it is determined that the vehicle meets the exit condition.

[0145] Optionally, the judging module includes:

[0146] A first judgment submodule is configured to determine that the vehicle satisfies the exit condition when the duration of the vehicle completely entering the torque peak assist mode reaches a preset duration; or,

[0147] The judging module comprises:

[0148] An acquisition submodule, used to acquire electrical parameters of the power battery;

[0149] A second determination submodule, used to determine whether the power battery has the ability to assist the peak torque according to the electrical parameters;

[0150] The judgment module is used to determine that the vehicle meets the exit condition if it is determined that the power battery no longer has the ability to assist the peak torque.

[0151] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0152] Figure 4 FIG. 7 is a block diagram of a controller 700 according to an exemplary embodiment. Figure 4 As shown, the controller 700 may include: a processor 701 and a memory 702. The controller 700 may also include one or more of a multimedia component 703, an input / output (I / O) interface 704, and a communication component 705.

[0153] The processor 701 is used to control the overall operation of the controller 700 to complete all or part of the steps in the above-mentioned vehicle control method. The memory 702 is used to store various types of data to support the operation of the controller 700, and these data may include, for example, instructions for any application or method used to operate on the controller 700, and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 702 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. The multimedia component 703 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 702 or sent through the communication component 705. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 704 provides an interface between the processor 701 and other interface modules, and the other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is used for wired or wireless communication between the controller 700 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 705 may include: Wi-Fi module, Bluetooth module, NFC module, etc.

[0154] In an exemplary embodiment, the controller 700 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned vehicle control method.

[0155] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned vehicle control method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 702 including program instructions, and the above-mentioned program instructions can be executed by the processor 701 of the controller 700 to complete the above-mentioned vehicle control method.

[0156] The present disclosure also provides a vehicle, including the controller provided by any embodiment of the present disclosure. For example, including Figure 4 Controller shown.

[0157] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0158] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0159] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle control method, characterized in that: The method comprises: Obtaining remaining power and first temperature information of a vehicle power battery; Acquiring second temperature information of a vehicle driving motor; acquiring power assist intention information indicating whether a driver has a power assist torque peak demand; determining whether the vehicle has a capability of assisting peak torque according to the remaining power, the first temperature information, and the second temperature information; If it is determined that the vehicle has the ability to assist the peak torque, and the assistance intention information indicates that the driver has a need for assisting the peak torque, controlling the vehicle to enter a torque peak assistance mode; After the step of controlling the vehicle to enter the torque peak assist mode, the method further includes: Before the vehicle fully enters the torque peak assist mode, the first target torque to be output is determined based on the maximum peak torque and maximum steady-state torque that the power battery can provide to the drive motor, as well as the reserved torque and assist activation factor of the drive motor; and the drive motor is controlled to output the first target torque.

2. The method according to claim 1, characterized in that The determining, according to the remaining power, the first temperature information, and the second temperature information, whether the vehicle has the ability to assist the peak torque, includes: If the remaining power of the power battery is greater than a preset power threshold, the temperature indicated by the first temperature information is within a first temperature range, and the temperature indicated by the second temperature information is within a second temperature range, it is determined that the vehicle has the ability to assist peak torque.

3. The method according to claim 1, characterized in that The method further comprises: After the vehicle completely enters the torque peak power-assisting mode, determining the maximum peak torque of the drive motor that can be provided by the power battery as the second target torque to be output; The driving motor is controlled to output the second target torque.

4. The method according to claim 1, characterized in that: After the step of controlling the vehicle to enter the torque peak assist mode, the method further includes: determining whether the vehicle meets an exit condition of the torque peak assist mode; When it is determined that the vehicle satisfies the exit condition, the vehicle is controlled to exit the torque peak assist mode.

5. The method according to claim 4, characterized in that The determining whether the vehicle satisfies the exit condition of the torque peak assist mode includes: When the duration of the vehicle completely entering the torque peak assist mode reaches a preset duration, determining that the vehicle meets the exit condition; or, The determining whether the vehicle satisfies the exit condition of the torque peak assist mode includes: Acquiring electrical parameters of the power battery; Determining whether the power battery has the ability to assist the peak torque according to the electrical parameters; If it is determined that the power battery no longer has the ability to assist the peak torque, it is determined that the vehicle meets the exit condition.

6. A vehicle control device, characterized in that: The device comprises: A first acquisition module, used to acquire the remaining power and first temperature information of the vehicle power battery; A second acquisition module, used to acquire second temperature information of the vehicle drive motor; A third acquisition module is used to acquire power assist intention information indicating whether the driver has a power assist torque peak demand; a first determination module, configured to determine whether the vehicle has the ability to assist the peak torque according to the remaining power, the first temperature information, and the second temperature information; A first control module is configured to control the vehicle to enter a torque peak assist mode if it is determined that the vehicle has the ability to assist the peak torque and the assist intention information indicates that the driver has a need for assisting the peak torque; a second determination module, configured to determine a first target torque to be output according to a maximum peak torque and a maximum steady-state torque of the drive motor that can be provided by the power battery, a reserved torque of the drive motor and a power-assistance activation factor, after the first control module controls the vehicle to enter the torque peak power-assistance mode and before the vehicle completely enters the torque peak power-assistance mode; The second control module is used to control the driving motor to output the first target torque.

7. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 5 are implemented.

8. A controller, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1 to 5.

9. A vehicle, characterized in that: Comprising the controller as claimed in claim 8.

Images