Vehicle power-on control method, device, electric commercial vehicle and storage medium

Abstract

The present invention provides a vehicle power-on control method, device, electric commercial vehicle and storage medium, belonging to the field of vehicle power-on control technology. The vehicle includes a transmission controller and a vehicle controller. The vehicle power-on control method includes: when a vehicle power-on request is detected, judging whether the transmission gear is in neutral; when the transmission gear is not in neutral, controlling the transmission controller to send a virtual neutral signal to the vehicle controller, so that the vehicle controller completes the vehicle high-voltage power-on based on the virtual neutral signal. The present invention controls the transmission controller to send a virtual neutral signal to the vehicle controller when the transmission gear is not in neutral, so that the vehicle controller can complete the vehicle high-voltage power-on based on the virtual neutral signal. That is, when the transmission controller has not returned to neutral, the vehicle high-voltage power-on can also be performed, thereby achieving the purpose of preventing the vehicle from being fooled when it is powered on.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle power-on control, and in particular to a vehicle power-on control method, device, electric commercial vehicle and storage medium. Background Art

[0002] The existing pure electric commercial vehicle power-on control method mainly uses the vehicle controller (HCU) to detect whether the vehicle has the conditions for high voltage, and only allows the vehicle to be powered on when the conditions are met. One of the conditions for high voltage is: the gearbox is in neutral.

[0003] In the actual use of pure electric commercial vehicles, drivers sometimes forget to return the handle gear to neutral, but the transmission controller itself has an automatic return to neutral function, that is, after detecting that the vehicle is powered on and after powering on, it will actively return the transmission gear to neutral. In general, the process of returning the transmission gear to neutral is as follows: the transmission controller (TCU) uses the time of the current low-voltage delayed power-off and the time of the next low-voltage power-on to control the transmission gear to return to neutral. However, in some cases, the gears of the transmission are tightly meshed, and the torque provided by the shift actuator itself cannot complete the shifting work independently. The motor needs to provide a small torque jitter to complete the transmission gear shifting and return to neutral operation. If the TCU fails to automatically return to neutral after powering off, the next time the driver tries to power on, because the TCU gear is not in neutral, the vehicle determines that the high-voltage power conditions are not met and high voltage is not allowed. In a low-voltage environment, the motor cannot respond to the command to give a jitter torque to assist the TCU to complete the shifting, resulting in a technical problem that the vehicle cannot be powered on.

[0004] Therefore, there is an urgent need to provide a vehicle power-on control method, device, electric commercial vehicle and storage medium, which can be used to achieve the purpose of high-voltage power-on of the entire vehicle when the gearbox is not in neutral. Summary of the invention

[0005] In view of this, it is necessary to provide a vehicle power-on control method, device, electric commercial vehicle and storage medium to solve the technical problem in the prior art that the transmission gear was not returned to neutral when the power was last turned off, resulting in the inability to power on the entire vehicle with high voltage.

[0006] On the one hand, in order to solve the above technical problems, the present invention provides a vehicle power-on control method, the vehicle includes a transmission controller and a vehicle controller, and the vehicle power-on control method includes:

[0007] When a vehicle power-on request is detected, it is determined whether the gearbox is in neutral;

[0008] When the transmission gear is not in neutral, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller, so that the vehicle controller completes high-voltage power-on of the vehicle based on the virtual neutral signal.

[0009] In a possible implementation, the vehicle power-on control method further includes:

[0010] Get the handle gear position and determine whether the handle gear position is in the handle neutral position;

[0011] When the handle gear is not in the handle neutral position, the vehicle controller is controlled to send a prompt message to the instrument to prompt the driver to switch the handle gear to the handle neutral position;

[0012] When the handle gear is in the handle neutral position, and the transmission controller detects a vehicle power-on request but the transmission gear is not in the neutral position, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller.

[0013] In a possible implementation, the vehicle further includes a motor, and the vehicle power-on control method further includes:

[0014] Obtaining a motor speed of the motor, and determining whether the motor speed is less than a threshold speed;

[0015] When the motor speed is less than the threshold speed and the transmission controller detects a vehicle power-on request but the transmission gear is not in neutral, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller.

[0016] In a possible implementation, the vehicle further includes a motor and a gearbox, and after the vehicle controller completes high voltage power-on of the vehicle based on the virtual neutral signal, it further includes:

[0017] Controlling the vehicle controller to issue a motor enable instruction to the motor;

[0018] Based on the motor enable instruction, the transmission controller is controlled to send a motor jitter torque instruction to the motor, so that the transmission returns to neutral based on the jitter torque. In a possible implementation, during the process in which the transmission controller sends a virtual neutral signal to the vehicle controller to complete high-voltage power-on, the vehicle is controlled to enter an intelligent return to neutral mode, and after the transmission controller returns to neutral based on the jitter torque, the vehicle is controlled to exit the intelligent return to neutral mode.

[0019] In a possible implementation, when the mode of the vehicle is the intelligent neutral gear shifting mode, the transmission controller is controlled not to respond to a control instruction of the vehicle controller.

[0020] In a possible implementation, the virtual neutral signal is completely consistent with an actual neutral signal emitted when the transmission gear is in neutral.

[0021] On the other hand, the present invention further provides a vehicle power-on control device, the vehicle includes a transmission controller and a vehicle controller, and the vehicle power-on control device includes:

[0022] A gear position determination unit, used to determine whether the gearbox gear is in neutral when a vehicle power-on request is detected;

[0023] The high-voltage power-on unit is used to control the transmission controller to send a virtual neutral signal to the vehicle controller when the transmission gear is not in neutral, so that the vehicle controller completes the high-voltage power-on of the vehicle based on the virtual neutral signal.

[0024] On the other hand, the present invention further provides an electric commercial vehicle, comprising a memory and a processor, wherein:

[0025] The memory is used to store programs;

[0026] The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the vehicle power-on control method described in any one of the possible implementations above.

[0027] On the other hand, the present invention also provides a computer-readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the vehicle power-on control method described in any possible implementation method mentioned above are implemented.

[0028] The beneficial effect of the present invention is that the vehicle power-on control method provided by the present invention controls the transmission controller to send a virtual neutral signal to the vehicle controller when the transmission gear is not in neutral, and the vehicle controller can complete the high-voltage power-on of the vehicle based on the virtual neutral signal. That is, when the transmission controller is not in neutral, the high-voltage power-on of the vehicle can also be performed, achieving the purpose of preventing the vehicle from being fooled when it is powered on. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic flow chart of an embodiment of a vehicle power-on control method provided by the present invention;

[0031] Figure 2 A schematic flow chart of an embodiment of the present invention for generating a virtual neutral signal by taking into account the gear position of the handle;

[0032] Figure 3 A schematic flow chart of an embodiment of the present invention for generating a virtual neutral signal taking into account the motor speed;

[0033] Figure 4 A schematic flow chart of an embodiment of controlling a transmission controller to return to neutral provided by the present invention;

[0034] Figure 5 A schematic structural diagram of an embodiment of a vehicle power-on control device provided by the present invention;

[0035] Figure 6 A schematic structural diagram of an embodiment of a pure electric commercial vehicle provided by the present invention. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0037] It should be understood that the schematic drawings are not drawn to scale. The flowchart used in the present invention shows the operations implemented according to some embodiments of the present invention. It should be understood that the operations of the flowchart can be implemented out of order, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art, under the guidance of the content of the present invention, can add one or more other operations to the flowchart, and can also remove one or more operations from the flowchart. Some of the block diagrams shown in the accompanying drawings are functional entities, which do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor systems and / or microcontroller systems.

[0038] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] The present invention provides a vehicle power-on control method, device, electric commercial vehicle and storage medium, which are described below respectively.

[0040] Before presenting the specific embodiments, the vehicle is introduced first. The vehicle in the embodiment of the present invention includes a transmission control unit (TCU) and a hybrid control unit (HCU). The transmission control unit is a transmission device that can automatically shift gears according to the vehicle speed and engine speed. The vehicle control unit communicates with the transmission control unit via CAN. The vehicle control unit is used to send control instructions to the transmission control unit and receive feedback signals from the transmission control unit.

[0041] Among them, the vehicle also includes other devices such as the Motor Control Unit (MCU) and the Battery Management System (BMS), which will not be described one by one here.

[0042] Figure 1 A schematic flow chart of an embodiment of a vehicle power-on control method provided by the present invention is shown in FIG. Figure 1 As shown, the vehicle power-on control method includes:

[0043] S101, when a vehicle power-on request is detected, determining whether the gearbox is in neutral;

[0044] S102: When the transmission gear is not in neutral, control the transmission controller to send a virtual neutral signal to the vehicle controller, so that the vehicle controller completes high-voltage power-on of the vehicle based on the virtual neutral signal.

[0045] The vehicle power-on request in step S101 may be initiated by switching the key from the Off position to the On position.

[0046] It should be noted that the transmission gear being in neutral is only one of the conditions for high-voltage power-on of the whole vehicle. In order to achieve the success rate and safety of high-voltage power-on of the whole vehicle, in some embodiments of the present invention, after the vehicle controller receives the virtual neutral signal in step S102, other high-voltage power-on conditions need to be judged. When all high-voltage power-on conditions are met, the whole vehicle is powered on.

[0047] Among them, the high-voltage power-on conditions include but are not limited to: the motor controller is initialized, the battery management system is initialized, the key is in the On position, the system has no high-voltage fault prohibiting it, the DC charging is not connected, the AC charging is not connected, the accelerator pedal is not pressed, and the brake pedal is pressed.

[0048] It should be noted that before step S102, the vehicle needs to be powered on at low voltage. Specifically, the low-voltage power-on process is as follows: the vehicle controller controls the main relay of the vehicle to close, and the power battery (for example, a 12V battery) supplies power to each controller (such as a battery management system and a motor controller, etc.) and low-voltage electrical devices. After low-voltage power-on, each controller starts initialization and completes self-test. Take the self-test of the motor controller as an example: after the vehicle controller is initialized, a request is sent to the motor controller to request the motor controller to enter a low-voltage state (that is, an instruction to enter a low-voltage state is sent to the motor controller). If the motor controller has no faults, it responds to the mode request of the vehicle controller to enter a low-voltage electrical state, and feeds back the low-voltage electrical state information to the vehicle controller. If the motor controller has a fault, the corresponding fault information is sent to the vehicle controller, and the corresponding fault indicator light on the instrument is lit.

[0049] It should be noted that during the low-voltage power-on process, the vehicle cannot be driven and high-voltage electrical devices cannot work. In addition, after the low-voltage power-on is completed, the instrument should display information such as the current power battery SOC, the vehicle's gear status, cruising range, and average energy consumption.

[0050] Compared with the prior art, the vehicle power-on control method provided by the embodiment of the present invention controls the transmission controller to send a virtual neutral signal to the vehicle controller when the transmission gear is not in neutral, so that the vehicle controller can complete the high-voltage power-on of the vehicle based on the virtual neutral signal. That is, when the transmission controller is not in neutral, the high-voltage power-on of the vehicle can also be performed, achieving the purpose of preventing the vehicle from being fooled when powering on.

[0051] Since the vehicle high voltage power-on requires the vehicle to be stationary / parked, if the vehicle is in driving state when the vehicle high voltage power-on is on, there will be safety risks. In a specific application scenario, when the handle gear is not in neutral, the vehicle will idle after power-on, causing safety problems. In order to avoid this technical problem, in some embodiments of the present invention, such as Figure 2 As shown, the vehicle power-on control method also includes:

[0052] S201, obtaining a handle gear position, and determining whether the handle gear position is in a handle neutral position;

[0053] S202: When the handle gear is in the handle neutral position and the transmission controller detects a vehicle power-on request but the transmission gear is not in the neutral position, control the transmission controller to send a virtual neutral signal to the vehicle controller.

[0054] The embodiment of the present invention determines the handle gear position before the vehicle controller sends a virtual neutral signal to ensure that the handle gear position is in the handle neutral position. The transmission controller is then controlled to send a virtual neutral signal to the vehicle controller to avoid the handle gear position being in a non-neutral position when the vehicle is powered on at high voltage, causing the vehicle to move at idle speed and causing a safety accident, thereby improving the safety of the vehicle power-on process.

[0055] The method of obtaining the handle gear position in step S201 is: obtaining a handle position signal based on a position sensor, and determining the handle gear position based on the handle position signal.

[0056] It should be noted that: when step S201 determines that the handle gear position is not in the handle neutral position, the vehicle controller will be controlled to send a prompt message to the instrument to prompt the driver to switch the handle gear position to the handle neutral position, and then execute step S202.

[0057] Furthermore, in the actual operation scenario of the vehicle, there is a specific scenario of neutral coasting, that is, the handle gear is in neutral, but the vehicle is not in a stationary state. In order to avoid the technical problem of unsafe driving caused by this scenario, in some embodiments of the present invention, Figure 3 As shown, the vehicle power-on control method also includes:

[0058] S301, obtaining the motor speed of the motor, and determining whether the motor speed is less than a threshold speed;

[0059] S302: When the motor speed is less than the threshold speed and the transmission controller detects a vehicle power-on request but the transmission gear is not in neutral, control the transmission controller to send a virtual neutral signal to the vehicle controller.

[0060] The embodiment of the present invention judges the motor speed before the vehicle controller sends a virtual neutral signal to ensure that the motor speed is less than the threshold speed. The transmission controller is then controlled to send a virtual neutral signal to the vehicle controller, thereby preventing the motor speed from being greater than the threshold speed when the vehicle is powered on at high voltage, causing uncontrolled vehicle movement, avoiding safety accidents, and further improving the safety of the vehicle power-on process.

[0061] The motor speed is acquired in step S301 by collecting the motor speed based on a speed sensor.

[0062] The threshold speed can be set according to actual needs. In a specific embodiment of the present invention, the threshold speed is 100 rpm.

[0063] It should be noted that: in order to ensure the safety of the vehicle during power-on to the greatest extent, when the handle gear is in neutral, the motor speed is less than the threshold speed, and the transmission controller detects a vehicle power-on request but the transmission gear is not in neutral, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller.

[0064] Through the above settings, it is ensured to the greatest extent that the vehicle is in a stopped state when the whole vehicle is powered on, so as to achieve safe power-on of the whole vehicle.

[0065] After the vehicle is powered on, the transmission controller that is not in neutral needs to be returned to neutral. Therefore, in some embodiments of the present invention, the vehicle further includes a motor and a transmission. Figure 4 As shown, after step S102, the following further includes:

[0066] S401, controlling the vehicle controller to send a motor enable command to the motor;

[0067] S402: Based on the motor enable instruction, control the transmission controller to send a motor jitter torque instruction to the motor, so that the transmission returns to neutral based on the jitter torque.

[0068] The embodiment of the present invention controls the vehicle controller to send a motor enable command to the motor to wake up the motor. The motor can provide a jitter torque based on the motor jitter torque command issued by the transmission controller. The jitter torque can make the transmission gear easier to disengage and complete the neutral gear return operation, thereby improving the efficiency and success rate of returning to neutral gear.

[0069] Among them, the jitter torque is a sawtooth wave, and the torque oscillates in a short period of time. When the jitter torque changes from positive to negative, or when the jitter torque changes from negative to positive, once the torque passes the "zero point", the transmission controller can quickly complete the neutral return action, that is, the transmission controller can return to neutral faster and more smoothly. This can not only ensure the safe return of the transmission clutch to neutral, but also shorten the execution time of returning to neutral, and improve the efficiency of returning to neutral.

[0070] In order to make each controller of the vehicle aware of the vehicle high-voltage power-on when the virtual neutral signal is currently sent, and avoid confusing it with the normal vehicle high-voltage power-on, resulting in unclear decision-making. In some embodiments of the present invention, when the transmission controller sends a virtual neutral signal to the vehicle controller to complete the high-voltage power-on, the vehicle is controlled to enter the intelligent return to neutral mode, and when the transmission controller returns to neutral based on the jitter torque, the vehicle is controlled to exit the intelligent return to neutral mode.

[0071] The embodiment of the present invention assigns an intelligent return to neutral mode to the vehicle, indicating that the vehicle is currently powered on with high voltage based on a virtual neutral signal, thereby providing a basis for the decision of the vehicle controller or the transmission controller and further improving the safety of the vehicle power-on process.

[0072] Since the virtual neutral signal is virtual, the actual gear position of the transmission controller is not in neutral. In order to avoid the transmission controller responding to the control command of the vehicle controller when the actual gear position is not in neutral, causing a safety accident, in some embodiments of the present invention, when the vehicle mode is the intelligent return to neutral mode, the transmission controller is controlled not to respond to the control command of the vehicle controller.

[0073] The embodiment of the present invention controls the transmission controller not to respond to the control command of the vehicle controller when the vehicle mode is set to intelligent return to neutral, so as to avoid the transmission controller making a response under the influence of the control command, that is, executing the high-voltage power-on action when the high-voltage power-on condition is not met, resulting in a safety accident, thereby further improving the safety of the vehicle power-on process.

[0074] The control instructions include but are not limited to torque instructions and speed instructions.

[0075] Since the virtual neutral signal is an actual neutral signal emitted when the simulated transmission gear is in neutral, in order to ensure the reliability of high-voltage power-on of the entire vehicle, the virtual neutral signal is completely consistent with the actual neutral signal.

[0076] That is, for the vehicle controller, the virtual neutral signal is completely consistent with the actual neutral signal. In this way, the vehicle controller can complete the high voltage power-on of the vehicle after receiving the virtual neutral signal.

[0077] Specifically, the signal type, signal value, and signal format of the virtual neutral signal and the actual neutral signal are completely the same.

[0078] In order to better implement the vehicle power-on control method in the embodiment of the present invention, based on the vehicle power-on control method, the embodiment of the present invention also provides a vehicle power-on control device, the vehicle includes a transmission controller and a vehicle controller, such as Figure 5 As shown, the vehicle power-on control device 500 includes:

[0079] The gear position determination unit 501 is used to determine whether the gear position of the transmission is in neutral when a vehicle power-on request is detected;

[0080] The high voltage power-on unit 502 is used to control the transmission controller to send a virtual neutral signal to the vehicle controller when the transmission gear is not in neutral, so that the vehicle controller completes the high voltage power-on of the vehicle based on the virtual neutral signal.

[0081] The vehicle power-on control device provided by the embodiment of the present invention controls the transmission controller to send a virtual neutral signal to the vehicle controller by setting the high-voltage power-on unit 502 when the transmission gear is not in neutral, so that the vehicle controller can complete the high-voltage power-on of the vehicle based on the virtual neutral signal. That is, when the transmission controller is not in neutral, the high-voltage power-on of the vehicle can also be performed, thereby achieving the purpose of preventing the vehicle from being fooled when being powered on.

[0082] In order to improve the safety of the vehicle's high-voltage power-on process, in some embodiments of the present invention, the high-voltage power-on unit 502 is specifically used to obtain the handle gear position and determine whether the handle gear position is in the handle neutral position; when the handle gear position is in the handle neutral position, and the transmission controller detects a vehicle power-on request but the transmission gear position is not in neutral, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller.

[0083] The embodiment of the present invention determines the handle gear position before the vehicle controller sends a virtual neutral signal to ensure that the handle gear position is in the handle neutral position. The transmission controller is then controlled to send a virtual neutral signal to the vehicle controller to avoid the handle gear position being in a non-neutral position when the vehicle is powered on at high voltage, causing the vehicle to move at idle speed and causing a safety accident, thereby improving the safety of the vehicle power-on process.

[0084] Furthermore, in some embodiments of the present invention, the high-voltage power-on unit 502 is also specifically used to obtain the motor speed of the motor and determine whether the motor speed is less than a threshold speed; when the motor speed is less than the threshold speed, and the transmission controller detects a vehicle power-on request but the transmission gear is not in neutral, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller.

[0085] The embodiment of the present invention judges the motor speed before the vehicle controller sends a virtual neutral signal to ensure that the motor speed is less than the threshold speed. The transmission controller is then controlled to send a virtual neutral signal to the vehicle controller, thereby preventing the motor speed from being greater than the threshold speed when the vehicle is powered on at high voltage, causing uncontrolled vehicle movement, avoiding safety accidents, and further improving the safety of the vehicle power-on process.

[0086] Since after the vehicle is powered on, the transmission controller that is not in neutral needs to be returned to neutral, therefore, in some embodiments of the present invention, such as Figure 5 As shown, the vehicle power-on control device 500 further includes a gear return unit 503, and the gear return unit 503 is specifically used for:

[0087] The vehicle controller is controlled to send a motor enable command to the motor; based on the motor enable command, the transmission controller is controlled to send a motor jitter torque command to the motor, so that the transmission returns to neutral gear based on the jitter torque.

[0088] The embodiment of the present invention controls the vehicle controller to send a motor enable command to the motor by setting the gear return to neutral unit 503 to wake up the motor. The motor can provide a jitter torque based on the motor jitter torque command issued by the transmission controller. The jitter torque can make the transmission gear easier to disengage and complete the neutral return operation, thereby improving the efficiency and success rate of returning to neutral.

[0089] Furthermore, when the transmission controller sends a virtual neutral signal to the vehicle controller to complete high-voltage power-on, the vehicle is controlled to enter the intelligent return to neutral mode. When the transmission controller returns to neutral based on the jitter torque, the vehicle is controlled to exit the intelligent return to neutral mode.

[0090] When the vehicle mode is the intelligent neutral gear return mode, the transmission controller is controlled not to respond to the control command of the vehicle controller.

[0091] The embodiment of the present invention controls the transmission controller not to respond to the control command of the vehicle controller when the vehicle mode is set to intelligent return to neutral, so as to avoid the transmission controller making a response under the influence of the control command, that is, executing the high-voltage power-on action when the high-voltage power-on condition is not met, resulting in a safety accident, thereby further improving the safety of the vehicle power-on process.

[0092] It should be noted that the vehicle power-on control device 500 provided in the above embodiment can implement the technical solution described in the above vehicle power-on control method embodiment. The specific implementation principles or specific implementation details of the above modules or units can refer to the corresponding contents in the above vehicle power-on control method embodiment, and will not be repeated here.

[0093] like Figure 6 As shown, the present invention also provides an electric commercial vehicle 600. The electric commercial vehicle 600 includes a processor 601, a memory 602 and a display 603. Figure 6 Only some of the components of the electric commercial vehicle 600 are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0094] In some embodiments, the processor 601 may be a central processing unit (CPU), a microprocessor or other data processing chip, used to run program codes or process data stored in the memory 602, such as the vehicle power-on control method of the present invention.

[0095] In some embodiments of the present invention, the processor 601 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 601 may be local or remote. In some embodiments, the processor 601 may be implemented in a cloud platform. In one embodiment, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination thereof.

[0096] In some embodiments, the memory 602 may be an internal storage unit of the electric commercial vehicle 600 , such as a hard disk or a memory of the electric commercial vehicle 600 .

[0097] Furthermore, the memory 602 may include both an internal storage unit and an external storage device of the electric commercial vehicle 600. The memory 602 is used to store application software installed in the electric commercial vehicle 600 and various data.

[0098] In some embodiments, the display 603 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. The display 603 is used to display information of the electric commercial vehicle 600 and to display a visual user interface. The components 601-603 of the electric commercial vehicle 600 communicate with each other via a system bus.

[0099] In some embodiments of the present invention, when the processor 601 executes the vehicle power-on control program in the memory 602, the following steps may be implemented:

[0100] When a vehicle power-on request is detected, it is determined whether the gearbox is in neutral;

[0101] When the transmission gear is not in neutral, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller, so that the vehicle controller completes high-voltage power-on of the vehicle based on the virtual neutral signal.

[0102] It should be understood that: when the processor 601 executes the vehicle power-on control program in the memory 602, in addition to the above functions, other functions can also be implemented. For details, please refer to the description of the corresponding method embodiment above.

[0103] Correspondingly, an embodiment of the present invention also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, it can implement the steps or functions of the vehicle power-on control method provided in the above-mentioned method embodiments.

[0104] It should be noted that the computer-readable medium shown in the embodiment of the present invention may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, an electrical, magnetic, optical, electromagnetic, infrared or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0105] It should also be noted that the terms "comprises", "includes" or any other variations thereof in the embodiments of the present invention are intended to cover non-exclusive inclusion, so that a process, method, commodity or apparatus that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also include elements inherent to such process, method, commodity or apparatus.

[0106] Those skilled in the art will appreciate that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware (such as a processor, a controller, etc.) through a computer program, and the computer program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0107] The above is a detailed introduction to a vehicle power-on control method, device, electric commercial vehicle and storage medium provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used 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 method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A vehicle power-on control method, characterized in that: The vehicle includes a transmission controller, a vehicle controller, a motor and a transmission, and the vehicle power-on control method includes: When a vehicle power-on request is detected, it is determined whether the gearbox is in neutral; When the gearbox is not in neutral, controlling the gearbox controller to send a virtual neutral signal to the vehicle controller, so that the vehicle controller completes high-voltage power-on of the vehicle based on the virtual neutral signal; After the vehicle controller completes high-voltage power-on of the vehicle based on the virtual neutral signal, controlling the vehicle controller to issue a motor enable instruction to the motor; Based on the motor enable instruction, the transmission controller is controlled to issue a motor jitter torque instruction to the motor, so that the transmission returns to neutral based on the jitter torque.

2. The vehicle power-on control method according to claim 1, characterized in that: The vehicle power-on control method further includes: Get the handle gear position and determine whether the handle gear position is in the handle neutral position; When the handle gear position is not in the handle neutral position, the vehicle controller is controlled to send a prompt message to the instrument to prompt the driver to switch the handle gear position to the handle neutral position; When the handle gear is in the handle neutral position, and the transmission controller detects a vehicle power-on request but the transmission gear is not in the neutral position, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller.

3. The vehicle power-on control method according to claim 1, characterized in that: The vehicle further includes a motor, and the vehicle power-on control method further includes: Obtaining a motor speed of the motor, and determining whether the motor speed is less than a threshold speed; When the motor speed is less than the threshold speed and the transmission controller detects a vehicle power-on request but the transmission gear is not in neutral, the transmission controller is controlled to send a virtual neutral signal to the vehicle controller.

4. The vehicle power-on control method according to claim 1, characterized in that: During the process of the transmission controller sending a virtual neutral signal to the vehicle controller to complete high-voltage power-on, the vehicle is controlled to enter an intelligent return to neutral mode. When the transmission controller returns to neutral based on the jitter torque, the vehicle is controlled to exit the intelligent return to neutral mode.

5. The vehicle power-on control method according to claim 4, characterized in that: When the mode of the vehicle is the intelligent neutral gear return mode, the transmission controller is controlled not to respond to the control instruction of the vehicle controller.

6. The vehicle power-on control method according to claim 1, characterized in that: The virtual neutral signal is completely consistent with the actual neutral signal sent when the gearbox is in neutral.

7. A vehicle power-on control device, characterized in that: The vehicle includes a transmission controller, a vehicle controller, a motor and a transmission, and the vehicle power-on control device includes: A gear position determination unit, used to determine whether the gearbox gear is in neutral when a vehicle power-on request is detected; A high-voltage power-on unit, used for controlling the transmission controller to send a virtual neutral signal to the vehicle controller when the transmission gear is not in neutral, so that the vehicle controller completes the high-voltage power-on of the vehicle based on the virtual neutral signal; The gear return unit is used to control the vehicle controller to issue a motor enable command to the motor after the vehicle controller completes the high-voltage power-on of the vehicle based on the virtual neutral signal; based on the motor enable command, control the transmission controller to issue a motor jitter torque command to the motor, so that the transmission returns to neutral based on the jitter torque.

8. An electric commercial vehicle, characterized in that: comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the vehicle power-on control method described in any one of claims 1 to 6 above.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the vehicle power-on control method described in any one of claims 1 to 6 are implemented.

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