Method, system and equipment for controlling ejection starting of pure electric vehicle and medium

Abstract

The invention discloses a pure electric vehicle ejection starting control method, system and device and a medium, and relates to the field of vehicle control, and the method comprises the steps that in response to an ejection starting activation instruction of a driver, based on the fact that a vehicle has an ejection starting condition, the vehicle enters an ejection starting activation state, and when the vehicle has the ejection starting condition, braking torque is output; in response to accelerator stepping operation of a driver, the motor outputs driving torque, and the driving torque is smaller than or equal to the braking torque; based on the ending of the first preset time, the zero clearing of the brake torque and the completion of the ejection starting of the vehicle, the acceleration advancing can be started, by adopting the method, the operation steps of the ejection starting are simple, the insufficient braking force caused by the fact that a driver does not operate a brake pedal in place is avoided, and the safety of the vehicle can be improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control technology, and in particular to a pure electric vehicle launch control method, system, device and medium. Background Art

[0002] Launch start means that when the vehicle is stationary, the driver presses the brake and accelerator at the same time, and the vehicle's motor speed is adjusted to a state that can produce maximum torque. When the vehicle starts, the driver releases the brake and the vehicle can output a larger torque, allowing for greater acceleration when starting.

[0003] During the launch start process, the driver needs to operate the brake pedal and the accelerator pedal at the same time. The operation steps are relatively complicated. The coordination between the brake and the accelerator directly affects the launch start effect of the vehicle. This means that in order to achieve a better launch start effect, the driver needs to have a high level of pedal control proficiency. If the control force of the brake pedal is not enough, it is easy to cause insufficient wheel grip and idling and slipping, affecting the driving experience. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a launch control method, system, device and medium for a pure electric vehicle.

[0005] The present invention provides a pure electric vehicle launch control method, comprising: S1, Launch Start Activation: In response to a launch start activation command from the driver and based on the vehicle meeting a launch start condition, the vehicle enters a launch start activation state, where the launch start condition includes at least one of a power system state, a battery state, a tire pressure state, a vehicle gear state, and a vehicle speed state, or any combination thereof; S2, launch start realization: Based on the vehicle meeting the launch start condition, output braking torque; In response to the driver's accelerator pedal operation, the motor outputs a driving torque, which is less than or equal to the braking torque; Based on the expiration of the first preset time, the braking torque is reset to zero, the vehicle completes the launch start, and can start accelerating forward.

[0006] In one embodiment, the launch start condition may include a braking torque state, and when the initial braking torque of the vehicle is greater than a preset braking torque, the vehicle cannot activate the launch start function.

[0007] In one embodiment, the launch start condition may include a vehicle state, where the vehicle state includes one of a seat belt state, a steering wheel state, a door state, and a front hood state, or any combination thereof.

[0008] In one embodiment, the launch start activation step S1 based on the vehicle having the launch start condition also includes: determining whether the vehicle has the launch start condition and generating first feedback information, the first feedback information is used to indicate that the vehicle has the launch start condition, and / or determining whether the vehicle has the launch start condition and generating second feedback information, the second feedback information is used to indicate that the vehicle does not have the launch start condition and prompts the launch start condition that is not met.

[0009] In one embodiment, the launching start implementation step S2 based on the first preset time ending further includes: generating third feedback information, the third feedback information is used to prompt the countdown or countdown of the first preset time.

[0010] In one embodiment, it also includes: S3, launch start exit: in response to the driver's operation of stepping on the brake pedal, or in response to the braking intervention of the auxiliary driving function, or based on the current vehicle speed being greater than the preset speed, or based on the duration of the launch start being greater than the second preset time, the launch start exits.

[0011] The present invention also provides a pure electric vehicle launch control system, comprising: An interaction module for enabling the driver to send a launch activation command; a brake module, for responding to a launch start activation instruction from a driver, determining whether the vehicle meets the launch start condition, outputting a brake torque based on the vehicle meeting the launch start condition, and releasing the brake force based on the expiration of a first preset time, so that the brake torque is reset to zero after the first preset time has expired, so that the vehicle completes the launch start; The control module is used for causing the motor to output a driving torque in response to a driver's accelerator pedal operation, wherein the driving torque is less than or equal to the braking torque.

[0012] In one embodiment, the braking module includes a functional module, a pressure building module and a release module. The functional module is used to receive a launch start activation instruction from the interactive module, determine whether the vehicle meets the launch start conditions, and send feedback information to the interactive module. When the vehicle meets the launch start conditions, the pressure building module starts to build pressure to achieve the output of braking torque. The functional module sends an instruction to the release module based on the driving torque output by the motor and the first preset time. The release module is used to release the braking force to clear the braking torque.

[0013] The present invention also proposes an electronic device, comprising at least one processor and a memory communicatively connected to the at least one processor, wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the above-mentioned pure electric vehicle launch control method.

[0014] The present invention also provides a computer-readable storage medium storing a computer program, wherein the computer program is used to enable a processor to implement the steps in the above-mentioned pure electric vehicle launch control method when the processor executes the computer program.

[0015] The above-mentioned pure electric vehicle launch control method, system, equipment and medium can realize automatic output control of the vehicle braking torque during the launch start process. During the activation and implementation of the launch start, the driver does not need to operate the brake pedal. Compared with the need to operate the accelerator pedal and the brake pedal at the same time, the operation difficulty is greatly reduced. The launch start operation steps are simple. The driver only needs to operate the accelerator pedal to complete the launch start action. The driver's proficiency is not required. The problem of insufficient braking force due to the driver's improper operation of the brake pedal, which in turn causes the tires to spin and slip, improves the driver's driving experience; only when the vehicle meets the launch start conditions can it respond to the driver's accelerator operation and realize the launch start, which can improve the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic flow chart of a control method according to an embodiment of the present invention; Figure 2 is a flow chart of a control method according to another embodiment of the present invention; Figure 3 The figure is a schematic diagram of the principle of a control system according to an embodiment of the present invention.

[0018] In the figure: 10-interaction module; 11-launch start switch; 12-display module; 20-brake module; 21-function module; 22-pressure building module; 23-release module; 30 - control module; 31 - first module; 32 - second module. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0023] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0024] Launch start means that when the vehicle is stationary, the driver presses the brake and accelerator at the same time, and the vehicle's motor speed is adjusted to a state that can produce maximum torque. When the vehicle starts, the driver releases the brake and the vehicle can output a larger torque, allowing for greater acceleration when starting.

[0025] During the launch start process, the driver needs to operate the brake pedal and the accelerator pedal at the same time. The operation steps are relatively complicated. The coordination between the brake and the accelerator directly affects the launch start effect of the vehicle. This means that in order to achieve a better launch start effect, the driver needs to have a high level of pedal control proficiency. If the control force of the brake pedal is not enough, it is easy to cause insufficient wheel grip and idling and slipping, affecting the driving experience.

[0026] Figure 1 and Figure 2 The flowchart of the launch control method for a pure electric vehicle according to two embodiments of the present invention is shown. The steps therein can be executed in a computer system such as a set of computer executable instructions. Although a logical order is given in the drawings, in some cases, the steps shown or described can be executed in an order different from that in the drawings. Under the guidance of the steps given in the present invention, those skilled in the art can flexibly change the order of the steps according to the requirements of function implementation.

[0027] Reference Figure 1 The present invention proposes a pure electric vehicle launch control method, which may include the following steps: S1, Launch Start Activation: In response to a launch start activation command from the driver and based on the vehicle meeting a launch start condition, the vehicle enters a launch start activation state, where the launch start condition includes at least one of a power system state, a battery state, a tire pressure state, a vehicle gear state, and a vehicle speed state, or any combination thereof; S2, launch start realization: Based on the vehicle meeting the launch start condition, output braking torque; In response to the driver's accelerator pedal operation, the motor outputs a driving torque, which is less than or equal to the braking torque; Based on the expiration of the first preset time, the braking torque is reset to zero, the vehicle completes the launch start, and can start accelerating forward.

[0028] The pure electric vehicle launch control method proposed in the present invention can realize automatic output control of the vehicle braking torque during the launch start process. During the launch start activation and implementation process, the driver is not required to operate the brake pedal. Compared with the need to operate the accelerator pedal and the brake pedal at the same time, the operation difficulty is greatly reduced. The launch start operation steps are simple. The driver only needs to operate the accelerator pedal to complete the launch start action. The driver's proficiency is not required to be high, and the problem of insufficient braking force due to the driver's inadequate operation of the brake pedal, which in turn causes the tire to spin and slip, improves the driver's driving experience; only when the vehicle meets the launch start conditions can it respond to the driver's accelerator operation and realize the launch start, which can improve the safety of the vehicle.

[0029] Exemplarily, the power system status includes at least the motor status, the transmission status, etc. The transmission status is used to transmit the power of the motor to the wheels, wherein the motor status includes at least the motor temperature, the motor power, etc. The transmission status includes at least whether the transmission can achieve power transmission. If the motor temperature is too high or the motor power is abnormal, the vehicle cannot activate the launch function, and / or, if the transmission status is abnormal, the vehicle cannot activate the launch function.

[0030] Exemplarily, the battery status includes at least battery temperature, battery power, battery charge, etc. If the battery temperature is too high, or the battery power is abnormal, or the battery charge is insufficient, the vehicle cannot activate the launch function.

[0031] Exemplarily, the tire pressure status refers to the air pressure of the vehicle's tires. If the tire pressure is abnormal, the vehicle cannot activate the launch function.

[0032] Exemplarily, the vehicle gear state means that when the launch control function is activated, the vehicle gear must be in the forward gear (D gear). If the vehicle gear state is not satisfied, the launch control function cannot be activated.

[0033] Exemplarily, the vehicle speed state means that when the launch control function is activated, the vehicle speed must be 0. If the vehicle speed is not 0, the launch control function cannot be activated.

[0034] As an optional embodiment, the launch start condition in the launch start activating step S1 may further include a braking torque state. When the initial braking torque of the vehicle is greater than a preset braking torque, the vehicle cannot activate the launch start function.

[0035] Due to the complex road conditions at the vehicle parking location, when the vehicle is parked on a slope (uphill or downhill), in order to avoid rolling, the vehicle's braking torque may not be 0. The braking torque of the vehicle before the launch control function is activated is defined as the initial braking torque. The preset braking torque is set according to the braking torque of the vehicle on the extreme slope (the slope that affects the safety of the vehicle's launch control). When the value of the initial braking torque is greater than the preset braking torque, it indicates that the vehicle is parked on a steeper slope. At this time, if the vehicle is allowed to launch control, it may bring danger to the occupants of the vehicle. Therefore, when the launch control function is activated, if the initial braking torque is greater than the preset braking torque, the vehicle cannot activate the launch control function. When the vehicle starts halfway on the extreme slope, if the driver mistakenly sends a launch control command, or the driver pursues extreme operation, in order to ensure driving safety, the vehicle cannot activate the launch control function.

[0036] Optionally, the preset braking torque may be set when the vehicle leaves the factory, or may be customized by the driver.

[0037] As an optional embodiment, the launch start condition in the launch start activating step S1 may further include a vehicle state, where the vehicle state includes one of a seat belt state, a steering wheel state, a door state, and a front hood state, or any combination thereof.

[0038] Exemplarily, the seat belt status refers to whether the seat belts of seats with occupants are fastened. When the seat belts of the driver and / or passenger seats are not fastened, the vehicle cannot activate the launch control function, which can avoid the problem of occupants being injured due to not wearing seat belts during the launch control process, thereby improving the safety of the passengers.

[0039] For example, the steering wheel state refers to whether the steering wheel angle is greater than a preset angle. If the steering wheel angle is too large, the vehicle will deviate too much during launch, which may cause danger to the occupants. Therefore, when the launch function is activated, if the steering wheel angle is greater than the preset angle, the launch function cannot be activated. Optionally, the preset steering wheel angle can be set when the vehicle leaves the factory, or can be customized by the driver.

[0040] Exemplarily, the door status refers to whether the door is closed. If the door is not closed, the vehicle cannot activate the launch function.

[0041] Exemplarily, the hood status refers to whether the hood is closed. If the hood is not closed, the hood is likely to block the driver's front view when the vehicle is launched, which may pose a danger to the occupants of the vehicle. Therefore, when the launch start function is activated, if the hood is not closed, the vehicle cannot activate the launch start function.

[0042] As an optional embodiment, the above-mentioned launch start activation step S1 in response to the launch start activation instruction of the driver further includes: the driver operates a launch start switch in the vehicle to send the launch start activation instruction.

[0043] As an optional implementation method, the above-mentioned launch start activation step S1 based on the vehicle having the launch start condition also includes: judging whether the vehicle has the launch start condition, and generating first feedback information, the first feedback information is used to indicate that the vehicle has the launch start condition, and / or judging whether the vehicle has the launch start condition, and generating second feedback information, the second feedback information is used to indicate that the vehicle does not have the launch start condition, and prompting the launch start condition that is not met.

[0044] The first feedback information can remind the driver that the vehicle will enter the launch start implementation stage, so as to give the driver psychological expectations and not affect the driver's experience due to the sudden launch start; the second feedback information can serve as a reminder so that the driver can check the vehicle according to the launch start conditions that are not met.

[0045] As an optional embodiment, the launch start implementation step S2 further includes: generating third feedback information, the third feedback information is used to prompt the countdown or countdown of the first preset time, the first preset time is the intermediate time period from the completion of the output of the driving torque of the motor to the reset of the braking torque, after the first preset time, the braking force is released, the braking torque is reset, the vehicle completes the launch start action and starts to accelerate. The third feedback information can serve as a prompt, so that the driver can judge the time when the launch start is completed, the reset of the braking torque means the release of the vehicle's braking force, and after the first preset time, the vehicle will start to accelerate.

[0046] Reference Figure 2 In one embodiment, the pure electric vehicle launch control method provided by the present invention further includes: S3, ejection start exit: In response to the driver's operation of stepping on the brake pedal, or in response to the braking intervention of the auxiliary driving function, or based on the current vehicle speed being greater than a preset speed, or based on the duration of the launch start being greater than a second preset time, the launch start is exited.

[0047] After the launch control is completed, the vehicle speed will increase significantly. If the current speed is high, it may affect the driving safety of the vehicle. In some speed-limited sections, excessive speed will cause the vehicle to violate traffic rules. In some sections with less friction, excessive speed will cause the vehicle to slip. Therefore, limiting the speed of the vehicle and the duration of the launch control can help ensure the driving safety of the vehicle. The second preset time can be set when the vehicle leaves the factory, or it can be customized by the driver. For example, the braking intervention of the assisted driving function means that the vehicle is equipped with AEB (Autonomous Emergency Braking), which can assist the driver in performing braking operations, which is beneficial to improving the safety performance of the vehicle, and can reduce the driver's operation of operating the brake pedal, reducing the difficulty of operation.

[0048] As an optional embodiment, the launch start exit step S3 may further include the following steps: Detect the opening of the brake pedal to determine whether the driver has stepped on the brake pedal or the braking intervention of the auxiliary driving function, or detect the vehicle speed to determine whether the current vehicle speed is greater than a preset speed, or detect the duration of the launch start to determine whether the duration of the launch start is greater than a second preset time.

[0049] Figure 3 A schematic diagram of a pure electric vehicle launch control system according to an embodiment of the present invention is given. Figure 3The present invention proposes a pure electric vehicle launch control system, which can be used to execute the above-mentioned pure electric vehicle launch control method. The control system may include an interaction module 10, a braking module 20 and a control module 30.

[0050] An interaction module 10, configured to enable the driver to send a launch activation command; The brake module 20 is used to respond to the driver's launch start activation instruction, determine whether the vehicle meets the launch start condition, output a braking torque based on the vehicle meeting the launch start condition, and release the braking force based on the end of the first preset time, so that the braking torque is reset to zero after the first preset time ends, so that the vehicle completes the launch start; The control module 30 is used to make the motor output a driving torque in response to the driver's accelerator pedal operation, where the driving torque is less than or equal to the braking torque.

[0051] As an optional embodiment, refer to Figure 3 The interaction module 10 includes a launch start switch 11, and the launch start switch 11 is configured to enable the driver to send a launch start activation instruction to the brake module 20 through the launch start switch 11. The brake module 20 is communicatively connected with the launch start switch 11. The brake module 20 is configured to receive the launch start activation instruction from the launch start switch 11, and to determine whether the vehicle meets the launch start condition. If the vehicle meets the launch start condition, the brake module 20 outputs a braking torque.

[0052] Exemplarily, the interaction module 10 adopts an MMI (Multi-Media Interface), and the driver can turn on the launch switch 11 through the MMI.

[0053] As an optional embodiment, refer to Figure 3 The braking module 20 includes a functional module 21, a pressure building module 22 and a release module 23. The functional module 21 is used to receive the launch start activation instruction from the interactive module 10, determine whether the vehicle has the launch start condition, and send feedback information to the interactive module 10. When the vehicle has the launch start condition, the functional module 21 sends an instruction to the pressure building module 22, and the pressure building module 22 starts to build pressure to achieve the output of the braking torque. The functional module 21 can send an instruction to the release module 23 according to the driving torque output by the motor and the first preset time. The release module 23 is used to release the braking force to clear the braking torque.

[0054] Exemplarily, the brake module 20 may be equipped with a one-box brake system.

[0055] Exemplarily, the feedback information includes first feedback information and / or second feedback information, the first feedback information is used to indicate that the vehicle meets the launch control condition, and the second feedback information is used to indicate that the vehicle does not meet the launch control condition and prompts the launch control condition that is not met.

[0056] For example, refer to Figure 3 The interactive module 10 includes a display module 12, which is in communication with a brake module 20. The brake module 20 is used to determine whether the vehicle has a launch start condition and generate feedback information. The display module 12 is used to display the aforementioned feedback information.

[0057] Exemplarily, the launch switch 11 can be separately arranged on one side of the display module 12 , and can be set as a mechanical switch (such as a push switch, a knob switch, etc.), or can be set as a touch switch, and can be independently arranged or displayed through the display module 12 .

[0058] For example, if the vehicle meets the launch start condition, the braking module 20 feeds back first feedback information that the vehicle can execute the launch start to the interaction module 10 , and the display module 12 is used to display the first feedback information fed back by the braking module 20 .

[0059] Optionally, the first feedback information is achieved by turning on the launch switch 11, for example, the launch switch 11 remains pressed after being pressed, or, the first feedback information is achieved by maintaining the display brightness or color of the launch switch 11, or, the first feedback information is achieved by displaying the words "launch start activated".

[0060] For example, if the vehicle does not meet the launch start condition, the braking module 20 feeds back second feedback information that the vehicle cannot execute the launch start to the interaction module 10 , and the display module 12 is used to display the second feedback information fed back by the braking module 20 .

[0061] Optionally, the second feedback information is realized by displaying the launch start condition. The display module 12 can display the launch start conditions that are not met by the vehicle. The driver can determine which one or more launch start conditions are not met through the second feedback information, so as to facilitate the driver to adjust the vehicle so that the vehicle meets the launch start conditions.

[0062] Optionally, the display module 12 can display all the launch-start conditions and inform the driver which launch-start condition or conditions are not met through differentiated display. The differentiated display method can be color differentiated display or the like.

[0063] Exemplarily, the display module 12 adopts an IPK (Instrument Pack).

[0064] As an optional embodiment, refer to Figure 3The control module 30 includes a first module 31 and a second module 32. The first module 31 is communicatively connected to the brake module 20, and the first module 31 is communicatively connected to the second module 32. The first module 31 is used to collect the accelerator pedal opening, and receive the brake torque signal from the brake module 20, and send a drive torque output request to the second module 32. The second module 32 is communicatively connected to the motor. The second module 32 can receive the drive torque output request and send instructions to the motor to control the motor to output the drive torque, and make the drive torque less than or equal to the brake torque.

[0065] Exemplarily, the first module 31 adopts a VCU (vehicle Controller Unit).

[0066] Exemplarily, the second module 32 uses an MCU (Motor Control Unit). The present invention also proposes an electronic device, which is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable electronic devices (such as helmets, glasses, watches, etc.) and other similar computing devices.

[0067] As an optional implementation method, the electronic device proposed in the present invention includes at least one processor and a memory connected to the at least one processor for communication, the memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the aforementioned pure electric vehicle launch control method.

[0068] Exemplarily, the processor can be various general and / or special processing components with processing and computing capabilities, such as a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), etc.

[0069] Illustratively, the memory may be a read-only memory (ROM), a random access memory (RAM), or the like.

[0070] The present invention further proposes a computer-readable storage medium storing a computer program, wherein the computer program is used to enable a processor to implement the steps of the aforementioned pure electric vehicle launch control method when the processor executes the computer program.

[0071] Exemplarily, the aforementioned pure electric vehicle launch control method can be implemented as a computer program and stored in a computer-readable storage medium. The computer program can be written in at least one programming language, which can be executed by a processor and implement one or more of the above steps.

[0072] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A pure electric vehicle launch control method, characterized in that: include: S1, Launch Start Activation: In response to a launch start activation command from the driver and based on the vehicle meeting a launch start condition, the vehicle enters a launch start activation state, where the launch start condition includes at least one of a power system state, a battery state, a tire pressure state, a vehicle gear state, and a vehicle speed state, or any combination thereof; S2, launch start realization: Based on the vehicle meeting the launch start condition, output braking torque; In response to the driver's accelerator pedal operation, the motor outputs a driving torque, which is less than or equal to the braking torque; Based on the expiration of the first preset time, the braking torque is reset to zero, the vehicle completes the launch start, and can start accelerating forward.

2. The pure electric vehicle launch control method according to claim 1, characterized in that: The launch start condition may include a braking torque state, and when the initial braking torque of the vehicle is greater than a preset braking torque, the vehicle cannot activate the launch start function.

3. The pure electric vehicle launch control method according to claim 1 or 2, characterized in that: The launch start condition may include a vehicle state, and the vehicle state includes one of a seat belt state, a steering wheel state, a door state, and a front hood state, or any combination thereof.

4. The pure electric vehicle launch control method according to claim 1, characterized in that: The launch start activating step S1 based on the vehicle having the launch start condition also includes: determining whether the vehicle has the launch start condition and generating first feedback information, the first feedback information is used to indicate that the vehicle has the launch start condition, and / or determining whether the vehicle has the launch start condition and generating second feedback information, the second feedback information is used to indicate that the vehicle does not have the launch start condition and prompts the launch start condition that is not met.

5. The pure electric vehicle launch control method according to claim 1, characterized in that: The launching start implementation step S2 based on the first preset time ending also includes: generating third feedback information, where the third feedback information is used to prompt the countdown or countdown of the first preset time.

6. The pure electric vehicle launch control method according to claim 1, characterized in that: Also includes: S3. Launch Start Exit: In response to the driver's operation of stepping on the brake pedal, or in response to the braking intervention of the auxiliary driving function, or based on the current vehicle speed being greater than a preset speed, or based on the duration of the launch start being greater than a second preset time, the launch start is exited.

7. A pure electric vehicle launch control system, characterized in that: include; An interaction module (10) is used to enable the driver to send a launch activation command; A braking module (20) is used to respond to a driver's launch start activation instruction, determine whether the vehicle meets the launch start condition, output a braking torque based on the vehicle meeting the launch start condition, release the braking force based on the expiration of a first preset time, and reset the braking torque to zero after the first preset time has expired, so that the vehicle completes the launch start; The control module (30) is used to respond to the driver's accelerator pedal operation to enable the motor to output a driving torque, wherein the driving torque is less than or equal to the braking torque.

8. The pure electric vehicle launch control system according to claim 7, characterized in that: The braking module (20) comprises a functional module (21), a pressure building module (22) and a release module (23); the functional module (21) is used to receive a launch start activation instruction from the interactive module (10), determine whether the vehicle has a launch start condition, and send feedback information to the interactive module (10); when the vehicle has a launch start condition, the pressure building module (22) starts to build pressure to achieve the output of a braking torque; the functional module (21) sends an instruction to the release module (23) based on the driving torque output by the motor and a first preset time; the release module (23) is used to release the braking force to reset the braking torque to zero.

9. An electronic device, characterized in that: The invention comprises at least one processor and a memory connected to the at least one processor in communication, wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the pure electric vehicle launch control method as described in any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that: A computer program is stored, and the computer program is used to enable the processor to implement the steps in the pure electric vehicle launch control method according to any one of claims 1 to 6 when executed.

Images