CN109606116B - A kind of ejection acceleration control method for electric vehicle and related products - Google Patents

Abstract

The present invention provides an ejection acceleration control method for an electric vehicle, comprising: receiving an ejection acceleration activation instruction; determining a maximum torque limit value of a motor according to a first-time maximum discharge power of a battery, so as to limit the power of the motor; The accelerator signal controls the torque of the electric motor according to the pedalmap corresponding to the first time peak torque/power of the electric motor, so as to drive the electric vehicle to perform ejection acceleration. The ejection acceleration control method of an electric vehicle provided by the present invention can control the electric system of the electric vehicle to output power, and can control the motor to perform ejection acceleration according to the peak torque/power according to the accelerator signal, thereby facilitating the driver to realize the ejection acceleration of the electric vehicle. The ejection acceleration control method and related products for electric vehicles provided by the present invention have the same beneficial effects, and will not be repeated here.

Description

A kind of ejection acceleration control method for electric vehicle and related products

technical field

The invention relates to the technical field of electric vehicles, in particular to an ejection acceleration control method for electric vehicles and related products.

Background technique

In recent years, due to the rapid development of battery, motor and electronic control technology, electric vehicles have made great progress in cruising range and acceleration performance. Among them, many mass-produced electric vehicles have a cruising range of more than 400 kilometers. Therefore, under the background that electric vehicles basically meet the mileage requirements, the product positioning of various car companies has gradually shifted from means of transportation to performance vehicles, such as Roewe Marvell X, Jaguar I-PACE and Tesla Model S.

Ejection acceleration control is a very important technology that can improve the driving pleasure and sports performance of the vehicle. However, this technology is currently mainly used in internal combustion engine vehicles and less in electric vehicles. Due to the increase in the cruising range of electric vehicles and the improvement of the power level of the drive system, the existing electric vehicles already have the conditions to configure the ejection acceleration control function.

Therefore, the present invention proposes an ejection acceleration control scheme for electric vehicles, which is an urgent technical problem to be solved by those skilled in the art by ejecting and accelerating electric vehicles to improve the driving pleasure of the driver and the motion performance of the vehicle.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide an ejection acceleration control method for an electric vehicle and related products, which can perform ejection acceleration for an electric vehicle and improve the driving pleasure of the driver and the sports performance of the vehicle. Its specific plan is as follows:

In a first aspect, the present invention provides an ejection acceleration control method for an electric vehicle, comprising:

Receive the ejection acceleration activation command;

Determine the maximum torque limit value of the motor according to the maximum discharge power of the battery at the first time, so as to limit the power of the motor;

According to the accelerator signal, the torque of the electric motor is controlled according to the pedalmap corresponding to the first time peak torque/power of the electric motor, so as to drive the electric vehicle to perform ejection acceleration.

Preferably,

Before the receiving the ejection acceleration activation instruction, the method further includes:

Start the first preparation action;

The first preparatory action includes:

if the electric vehicle is equipped with an active suspension, controlling the active suspension to lower the vehicle body to the lowest position; and/or

If the electric vehicle is a dual-motor four-wheel drive vehicle or a four-wheel independent drive vehicle, the control torque distribution mode is a full-time four-wheel drive mode.

Preferably,

After the receiving the ejection acceleration activation instruction, and before the sending the battery maximum discharge power control instruction according to the first time discharge power to limit the discharge power of the battery, the method further includes:

When the vehicle is in a stationary state, an operation prompt prompting the driver to activate the accelerator and brake at the same time is issued.

Preferably,

After the receiving the ejection acceleration activation instruction, the method further includes:

start the second preparation action;

The second preparatory action includes:

The TCS and VDC functions of the ESP system controlling the electric vehicle are turned off.

Preferably,

After sending the torque control command to the motor according to the Pedalmap corresponding to the peak torque at the first time, the method further includes:

judging whether the duration of the motor running at the peak torque/power of the motor at the first time exceeds a first preset duration;

If yes, control the maximum allowable discharge power of the battery to naturally decay to the second time discharge power, and control the motor peak torque/power of the motor to naturally decay to the second time peak torque/power; wherein the second time is greater than the second time. a time.

In a second aspect, the present invention provides an ejection acceleration control system for an electric vehicle, comprising:

The acceleration activation receiving module is used to receive the ejection acceleration activation command;

a torque limit module, configured to determine the maximum torque limit value of the motor according to the maximum discharge power of the battery at the first time, so as to limit the power of the motor;

The accelerator control module is configured to control the torque of the motor according to the accelerator signal and according to the pedalmap corresponding to the first time peak torque/power of the motor, so as to drive the electric vehicle to perform ejection acceleration.

Preferably, it also includes:

The operation prompt module is used to issue an operation prompt to prompt the driver to simultaneously activate the accelerator and brake when the vehicle is in a stationary state.

Preferably, it also includes:

a duration judging module for judging whether the duration of the motor running according to the motor peak torque/power at the first time exceeds a first preset duration;

A power attenuation module, configured to control the maximum allowable discharge power of the battery to naturally attenuate to the discharge power at the second time if it is determined that the duration of the motor running at the peak torque/power of the motor at the first time exceeds the first preset duration, The motor peak torque/power of the control motor is naturally attenuated to the second time peak torque/power; wherein the second time is greater than the first time.

In a third aspect, the present invention provides an electric vehicle, which is provided with the ejection acceleration control system for an electric vehicle according to any one of the second aspect above.

In a fourth aspect, the present invention provides a readable computer storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements any one of the above-mentioned first aspect for the electric motor. The steps of the ejection acceleration control method of the automobile.

The present invention provides an ejection acceleration control method for an electric vehicle, comprising: receiving an ejection acceleration activation instruction; Limit; according to the accelerator signal, control the torque of the electric motor according to the pedalmap corresponding to the first time peak torque/power of the electric motor, so as to drive the electric vehicle to perform ejection acceleration. The ejection acceleration control method of an electric vehicle provided by the present invention can control the electric system of the electric vehicle to output power, and can control the motor to perform ejection acceleration according to the peak torque/power according to the accelerator signal, thereby facilitating the driver to realize the ejection acceleration of the electric vehicle.

The ejection acceleration control method and related products for electric vehicles provided by the present invention have the same beneficial effects, and will not be repeated here.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

1 is a flow chart of a method for controlling ejection acceleration for an electric vehicle provided by a specific embodiment of the present invention;

2 is a flow chart of a motor control provided by a specific embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an ejection acceleration control system for an electric vehicle provided by a specific embodiment of the present invention;

FIG. 4 is a schematic diagram of an expanded structure of an ejection acceleration control system for an electric vehicle provided by a specific embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another expanded composition of an ejection acceleration control system for an electric vehicle provided by a specific embodiment of the present invention;

6 is a schematic diagram of the composition and structure of an electric vehicle provided by another specific embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a computer device provided by another specific embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1 , which is a flowchart of a method for controlling ejection acceleration for an electric vehicle according to a specific embodiment of the present invention.

In a specific implementation manner of the present invention, an embodiment of the present invention provides a method for controlling ejection acceleration for an electric vehicle, including:

Step S11: receiving the ejection acceleration activation instruction;

Step S12: Determine the maximum torque limit value of the motor according to the maximum discharge power of the battery at the first time, so as to limit the power of the motor;

Step S13: According to the accelerator signal, control the torque of the electric motor according to the pedalmap corresponding to the first time peak torque/power of the electric motor, so as to drive the electric vehicle to perform ejection acceleration.

In the embodiment of the present invention, the ejection acceleration activation instruction needs to be received first. In practice, the user may use mechanical buttons or touch screen buttons to receive the ejection acceleration activation instruction. After receiving the ejection acceleration activation command, determine the maximum torque limit value of the motor according to the maximum discharge power of the battery at the first time, so as to limit the power of the motor. The electric system of the electric vehicle starts the motor according to the maximum power. For example, the BMS can follow the The 10s discharge power controls the output power of the battery, which in turn drives the motor to rotate. That is to say, the maximum power limit value that the motor can emit is determined by calculating the maximum discharge power of the battery at the first time, so that the power emitted by the battery does not exceed the maximum discharge power at the first time. Generally, the first time can be It is determined to be 10s, because for electric vehicles, 30s peak power is used to drive the motor during normal driving, and now 10s peak power is used to drive the motor, which can make the electric vehicle start more quickly.

When the electric vehicle is actually started, the torque of the motor can be controlled according to the pedalmap corresponding to the first time peak torque/power of the motor. The input value of the pedalmap is the accelerator and the real-time speed of the electric vehicle, and the output is the torque, so that the motor can be determined. The real-time torque can realize the drive of the motor, and then realize the ejection acceleration of the electric vehicle.

Generally, for the motor of an electric vehicle, the peak power that can be achieved by short-term discharge is higher, while the long-term discharge power is lower. Therefore, if the first time is less than the second time, then the peak power at the first time should be greater than the second time peak power. At this time, it is determined whether the ratio of the current first time peak power to the second time peak power of the motor of the electric vehicle exceeds a preset threshold. For example, the first time can be set to 10s, and the second time can be set to 30s; of course, in practice , or other time settings. For example, when it is determined that the ratio of the current 10s peak power to the 30s peak power of the electric motor of the electric vehicle exceeds 2 times, then the car can be launched to accelerate the launch. In order to facilitate the user to know, a signal for the completion of the ejection acceleration preparation action can be provided by means of a voice or a display screen, so as to realize the ejection acceleration of the car. That is to say, only when the battery's 10s discharge power/30s discharge power>2, and when the motor's 10s peak power/30s peak power>2, the orange text on the meter displays "Ejection Acceleration Ready", that is, the battery and motor can support electric vehicles Perform the ejection acceleration action.

Further, in order to achieve smoother ejection acceleration of the electric vehicle and improve the acceleration, after receiving the ejection acceleration activation instruction, it is determined whether the ratio of the current first time peak power to the second time peak power of the motor of the electric vehicle exceeds the Before the preset threshold, the method further includes: starting the first preparation action;

The first preparation action includes: if the electric vehicle has an active suspension, controlling the active suspension to lower the vehicle body to the lowest position; and/or

If the electric vehicle is a dual-motor four-wheel drive vehicle or a four-wheel independent drive vehicle, the control torque distribution mode is a full-time four-wheel drive mode.

That is, before step S11 is implemented, the first preparatory action needs to be started first. If the first preparatory action is not started, then step S11 cannot be started, so that the entire ejection acceleration cannot be started. From this point of view, it takes two starts to start the final ejection acceleration, which can prevent the false triggering of the ejection acceleration and increase the safety of the electric vehicle.

That is to say, the battery management system sends the maximum discharge power message according to the discharge power of the first time (which can be set to 10s), thereby releasing the discharge power limit on the drive system and the battery, that is, improving the whole drive system (electric vehicle's discharge power). The threshold value of the overcurrent of the driving system, that is, the electric system); the battery is controlled to drive the motor according to the first time peak power, and the motor is controlled to start according to the first time peak torque corresponding to the first time peak power. If it is high, it will limit the torque of the motor according to the first peak torque, or the first peak power of the battery, to prevent the battery from discharging too fast and causing damage to the battery, circuit, motor, etc.

Further, in order to better start the ejection acceleration and prevent the vehicle from drifting, after the ejection acceleration activation command is received, the ratio of the current first time peak power to the second time peak power of the electric motor of the electric vehicle may be determined. Before determining whether the preset threshold is exceeded, the method further includes: starting a second preparation action; the second preparation action includes: controlling the TCS and VDC functions of the ESP system of the electric vehicle to be turned off. That is to say, before the ejection acceleration is finally started, the TCS and VDC functions of the ESP system need to be turned off: to prevent the TCS from requesting the vehicle to reduce torque, and to prevent the VDC from affecting the driver's tail.

Please refer to FIG. 2 . FIG. 2 is a flow chart of motor control provided by a specific embodiment of the present invention.

Specifically, it is worth noting that after completing the ejection acceleration preparation action completion signal, if the driver does not operate for a long time, it may occur that the car runs at high power in situ. Therefore, the ejection acceleration preparation action can be sent after the ejection acceleration preparation action is completed. After the signal, you can include:

Step S21: judging whether the duration of the motor running according to the motor peak torque/power at the first time exceeds a first preset duration;

Step S22: If yes, control the maximum allowable discharge power of the battery to naturally decay to the second time discharge power, and control the motor peak torque/power of the motor to naturally decay to the second time peak torque/power; time is greater than the first time.

That is to say, if the ejection acceleration operation is not performed within the first preset time period, it means that the driver may be distracted by other things and is not prepared to perform ejection acceleration. If the car is damaged, you can control the motor torque or battery output power attenuation after the motor runs at high power for more than a certain period of time. For example, it can be reduced from a 10s peak to a 30s peak, of course, it can also be other peaks.

Further, in order to optimize the launch performance of the vehicle, it is recommended that the driver depress the accelerator and brake at the same time. At this time, the motor still emits torque, and the maximum torque value can reach about 50% of the peak torque of the motor. That is to say, after receiving the ejection acceleration activation instruction, the method further includes: when the vehicle is in a stationary state, issuing an operation prompt to prompt the driver to simultaneously activate the accelerator and brake.

The invention provides an ejection acceleration control method for an electric vehicle, which can control the electric system of the electric vehicle to output power, and determine whether ejection acceleration can be performed, so as to facilitate the operator to realize the ejection acceleration of the vehicle.

Please refer to FIG. 3 , FIG. 4 , and FIG. 5 . FIG. 3 is a schematic diagram of the composition and structure of an ejection acceleration control system for electric vehicles provided by a specific embodiment of the present invention; FIG. 4 is a specific embodiment of the present invention. A schematic diagram of the extended composition of the provided ejection acceleration control system for electric vehicles; FIG. 5 is another extended composition structure of an ejection acceleration control system for electric vehicles provided by a specific embodiment of the present invention. Schematic.

In a specific implementation manner of the present invention, an embodiment of the present invention provides an ejection acceleration control system 300 for an electric vehicle, including:

an acceleration activation receiving module 310, configured to receive an ejection acceleration activation instruction;

a torque limit module 320, configured to determine a maximum torque limit value of the motor according to the maximum discharge power of the battery at the first time, so as to limit the power of the motor;

The accelerator control module 330 is configured to control the torque of the motor according to the accelerator signal and according to the pedalmap corresponding to the first time peak torque/power of the motor, so as to drive the electric vehicle to perform ejection acceleration.

Preferably, it also includes:

The operation prompt module 340 is configured to issue an operation prompt to prompt the driver to simultaneously activate the accelerator and brake when the vehicle is in a stationary state.

Preferably, it also includes:

a duration judgment module 350, configured to judge whether the duration of the motor running at the peak torque/power of the motor at the first time exceeds a first preset duration;

The power attenuation module 360 is configured to control the maximum allowable discharge power of the battery to naturally attenuate to the discharge power at the second time if it is determined that the duration of the motor running at the peak torque/power of the motor at the first time exceeds the first preset duration . The motor peak torque/power of the control motor is naturally attenuated to the second time peak torque/power; wherein the second time is greater than the first time.

Please refer to FIG. 6 , which is a schematic structural diagram of an electric vehicle according to another specific embodiment of the present invention.

In yet another specific embodiment of the present invention, an embodiment of the present invention provides an electric vehicle 600, which is provided with the ejection acceleration control system 300 for an electric vehicle described in any of the foregoing specific embodiments.

Please refer to FIG. 7 , which is a schematic structural diagram of a computer device provided by another specific embodiment of the present invention.

In another specific implementation manner of the present invention, an embodiment of the present invention provides a computer device, including:

memory for storing computer programs;

The processor is configured to implement the steps of the ejection acceleration control method for an electric vehicle according to any one of the above-mentioned specific embodiments when executing the computer program.

Referring next to FIG. 7 , it shows a schematic structural diagram of a computer device suitable for implementing the embodiments of the present application. The computer device shown in FIG. 7 is only an example, and should not impose any limitations on the functions and scope of use of the embodiments of the present application.

As shown in FIG. 7 , a computer system 700 includes a processor (CPU) 701 that can be executed according to a program stored in a read only memory (ROM) 702 or a program loaded from a storage section 708 into a random access memory (RAM) 703 Various appropriate actions and processes are performed. In the RAM 703, various programs and data necessary for the operation of the system 700 are also stored.

The CPU 701 , the ROM 702 , and the RAM 703 are connected to each other through a bus 704 . An input/output (I/O) interface 703 is also connected to bus 704 .

The following components are connected to the I/O interface 705: an input section 706 including a keyboard, a mouse, etc.; an output section 707 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 708 including a hard disk, etc. ; and a communication section 709 including a network interface card such as a LAN card, a modem, and the like. The communication section 709 performs communication processing via a network such as the Internet. A drive 710 is also connected to the I/O interface 707 as needed. A removable medium 711, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is mounted on the drive 710 as needed so that a computer program read therefrom is installed into the storage section 708 as needed.

In particular, according to embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the method illustrated in the flowchart. In such an embodiment, the computer program may be downloaded and installed from the network via the communication portion 709 and/or installed from the removable medium 711 . When the computer program is executed by the processor (CPU) 701, the above-described functions defined in the method of the present application are performed. It should be noted that the computer-readable medium described in this application may be a computer-readable signal medium or a computer-readable medium, or any combination of the above two. The computer readable medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. More specific examples of computer readable media may include, but are not limited to, electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable Read only memory (EPROM or flash memory), fiber optics, portable compact disk read only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In this application, a computer-readable medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code therein. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any suitable medium including, but not limited to, wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for performing the operations of the present application may be written in one or more programming languages, including object-oriented programming languages—such as Java, Smalltalk, C++, but also conventional Procedural programming language - such as "C" language or similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server.

In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (eg, using an Internet service provider through Internet connection).

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more logical functions for implementing the specified functions executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented in dedicated hardware-based systems that perform the specified functions or operations , or can be implemented in a combination of dedicated hardware and computer instructions.

As another specific implementation manner of the present invention, an embodiment of the present invention provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, any of the foregoing specific implementation manners are implemented. Steps in a method of ejection acceleration control for electric vehicles.

The computer-readable medium may be included in the computer or the terminal device described in the above embodiments; it may also exist alone without being assembled into the computer device. The above-mentioned computer-readable medium carries one or more programs, and when the above-mentioned one or more programs are executed by the computer device, the computer device: Step S11: receive an ejection acceleration activation instruction; Step S12: control the electric vehicle The electric system starts the motor according to the maximum power; Step S13: judging whether the ratio of the current first time peak power to the second time peak power of the motor of the electric vehicle exceeds a preset threshold; wherein the first time is less than the second time time; step S14: if yes, send a signal for the completion of the ejection acceleration preparation to realize the ejection acceleration of the vehicle.

The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Finally, it should also be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or that there is any such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above has introduced the ejection acceleration control method for electric vehicles and related products provided by the present invention in detail. In this paper, specific examples are used to illustrate the principles and implementations of the present invention. The descriptions of the above embodiments are only used for In order to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, this specification The contents should not be construed as limiting the present invention.

Claims (9)

1. a kind of ejection acceleration control method for electric vehicle, is characterized in that, comprises: Receiving an ejection acceleration activation instruction; before the receiving an ejection acceleration activation instruction, further comprising: starting a first preparation action; the first preparation action includes: if the electric vehicle is configured with an active suspension, controlling the active suspension The suspension lowers the body to the lowest position; and/or if the electric vehicle is a dual-motor four-wheel drive vehicle or a four-wheel independent drive vehicle, the control torque distribution mode is a full-time four-wheel drive mode; Determine the maximum torque limit value of the motor according to the maximum discharge power of the battery in the first time, so as to limit the power of the motor; the first time is 10S; Determine whether the ratio of the maximum discharge power of the battery at the first time to the maximum discharge power of the battery at the second time exceeds a threshold, and determine the ratio of the peak power of the motor at the first time and the peak power of the motor at the second time Whether the ratio exceeds the threshold; If so, control the torque of the electric motor according to the pedalmap corresponding to the first time peak torque/power of the electric motor according to the accelerator signal, so as to drive the electric vehicle to perform ejection acceleration. 2. The ejection acceleration control method for an electric vehicle according to claim 1, characterized in that, After the receiving the ejection acceleration activation instruction, and before the sending the battery maximum discharge power control instruction according to the first time discharge power to limit the discharge power of the battery, the method further includes: When the vehicle is in a stationary state, an operation prompt prompting the driver to activate the accelerator and brake at the same time is issued. 3. The ejection acceleration control method for an electric vehicle according to claim 1, characterized in that, After the receiving the ejection acceleration activation instruction, the method further includes: start the second preparation action; The second preparatory action includes: The TCS and VDC functions of the ESP system controlling the electric vehicle are turned off. 4. The ejection acceleration control method for an electric vehicle according to any one of claims 1 to 3, wherein, After sending the torque control command to the motor according to the Pedalmap corresponding to the peak torque at the first time, the method further includes: judging whether the duration of the motor running at the peak torque/power of the motor at the first time exceeds a first preset duration; If yes, control the maximum allowable discharge power of the battery to naturally decay to the second time discharge power, and control the motor peak torque/power of the motor to naturally decay to the second time peak torque/power; wherein the second time is greater than the second time. a time. 5. An ejection acceleration control system for an electric vehicle, characterized in that, comprising: The acceleration activation receiving module is used for receiving the ejection acceleration activation instruction; before the receiving the ejection acceleration activation instruction, it further includes: starting a first preparation action; the first preparation action includes: if the electric vehicle is configured with an active suspension and/or if the electric vehicle is a dual-motor four-wheel drive vehicle or a four-wheel independent drive vehicle, the torque distribution mode is controlled to be a full-time four-wheel drive mode; torque a limit module, configured to determine the maximum torque limit value of the motor according to the maximum discharge power of the battery in the first time, so as to limit the power of the motor; the first time is 10S; The throttle control module is used to judge whether the ratio of the maximum discharge power of the battery at the first time to the maximum discharge power of the battery at the second time exceeds a threshold value, and to judge whether the peak power of the motor at the first time and the peak power of the motor at the first time are different. Whether the ratio of peak power at the second time exceeds the threshold; if so, according to the accelerator signal, control the torque of the motor according to the pedalmap corresponding to the peak torque/power of the motor at the first time, so as to drive the electric vehicle for ejection acceleration. 6. The ejection acceleration control system for an electric vehicle according to claim 5, further comprising: The operation prompt module is used to issue an operation prompt to prompt the driver to simultaneously activate the accelerator and brake when the vehicle is in a stationary state. 7. The ejection acceleration control system for an electric vehicle according to any one of claims 5 or 6, characterized in that, further comprising: a duration judging module for judging whether the duration of the motor running at the peak torque/power of the motor at the first time exceeds a first preset duration; A power attenuation module, configured to control the maximum allowable discharge power of the battery to naturally attenuate to the discharge power at the second time if it is determined that the duration of the motor's peak torque/power operation at the first time exceeds the first preset duration, The motor peak torque/power of the control motor is naturally attenuated to the second time peak torque/power; wherein the second time is greater than the first time. 8 . An electric vehicle, characterized in that it is provided with the ejection acceleration control system for an electric vehicle according to any one of claims 5 to 7 . 9. A computer-readable storage medium, characterized in that, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program is implemented according to any one of claims 1 to 4. The steps of the ejection acceleration control method of the electric vehicle.

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