Vehicle and control method and control device thereof

Abstract

The invention discloses a vehicle and a control method and device thereof, the method is applied to a passenger vehicle with an independent vehicle door, and the method comprises the steps that under the condition that the passenger vehicle is powered off, a vehicle unlocking signal of the passenger vehicle is received; in response to the vehicle unlocking signal, the passenger vehicle is controlled to enter an accessory power distribution mode, and the vehicle supplies power to a controller of a vehicle door in the accessory power distribution mode; and an unlocking instruction is sent to the controller to control the vehicle door to be unlocked. According to the method, the door can be electrically opened and closed through power distribution, the problem that a small bus is inconvenient to get on is solved, and the daily use experience of the bus is improved.

Description

Technical Field

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

[0002] Mini-buses are emerging products. Such vehicles usually have only one plug door (electric door), and both the driver and passengers enter and exit the vehicle through this door. The usual design of this door is that it can be electrically opened and closed only after the vehicle starts power distribution, and the vehicle usually uses a mechanical key to start.

[0003] In current market bus models, all are unlocked by mechanical keys, and the driver can only manually open the door to get on the vehicle, resulting in a poor experience. Summary of the Invention

[0004] The present application aims to solve at least to some extent the technical problems in the related art. For this purpose, the first object of the present application is to propose a vehicle control method, which, when the passenger vehicle is powered off, receives the vehicle unlocking signal of the passenger vehicle, and in response to the vehicle unlocking signal, controls the passenger vehicle to enter the accessory power distribution mode. In the accessory power distribution mode, the vehicle supplies power to the controller of the door, and sends an unlocking instruction to the controller to control the door to unlock. Thus, it is possible to allow the door to be electrically opened and closed through power distribution, solve the problem of inconvenient boarding of mini-buses, and improve the experience of daily use of the vehicle.

[0005] The second object of the present application is to propose a vehicle.

[0006] The third object of the present application is to propose a vehicle control device.

[0007] To achieve the above object, an embodiment of the first aspect of the present application proposes a vehicle control method, which is applied to a passenger vehicle with a single door. The method includes: when the passenger vehicle is powered off, receiving the vehicle unlocking signal of the passenger vehicle; in response to the vehicle unlocking signal, controlling the passenger vehicle to enter the accessory power distribution mode, and in the accessory power distribution mode, the vehicle supplies power to the controller of the door; sending an unlocking instruction to the controller to control the door to unlock.

[0008] According to the vehicle control method of the embodiment of the present application, when the passenger vehicle is powered off, the vehicle unlocking signal of the passenger vehicle is received, and in response to the vehicle unlocking signal, the passenger vehicle is controlled to enter the accessory power distribution mode. In the accessory power distribution mode, the vehicle supplies power to the controller of the door, and an unlocking instruction is sent to the controller to control the door to unlock. Thus, this method can allow the door to be electrically opened and closed through power distribution, solve the problem of inconvenient boarding of mini-buses, and improve the experience of daily use of the vehicle.

[0009] In addition, the vehicle control method according to the above embodiments of the present application may further have the following additional technical features:

[0010] According to an embodiment of the present application, the method further includes: when the passenger vehicle is in the accessory power distribution mode, receiving a door opening or door closing signal of the passenger vehicle; and in response to the door opening or door closing signal, controlling the door to open or close.

[0011] According to an embodiment of the present application, the method further includes: when the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode, receiving a vehicle locking signal of the passenger vehicle; in response to the vehicle locking signal, and when the door is in the closed state, controlling the passenger vehicle to power off, and when the door is not in the closed state, keeping the passenger vehicle in the accessory power distribution mode or in the vehicle power distribution mode unchanged.

[0012] According to an embodiment of the present application, one or more of the vehicle unlocking signal, the door opening signal, and the door closing signal are generated by a remote control key or a terminal device, or the vehicle unlocking signal is generated by a preset diagnostic instruction, or the vehicle unlocking signal is generated when the remote control key is within a preset range of the passenger vehicle and the driver clicks the start button of the passenger vehicle, wherein the duration of clicking the start button is less than a first preset time threshold.

[0013] According to an embodiment of the present application, the method further includes: when the passenger vehicle is in the vehicle power distribution mode, obtaining the vehicle speed of the passenger vehicle; when the vehicle speed is less than a first preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, controlling the passenger vehicle to switch to the accessory power distribution mode, wherein the duration of clicking the start button is less than the first preset time threshold.

[0014] According to an embodiment of the present application, the method further includes: when the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode, obtaining the vehicle speed of the passenger vehicle; when the vehicle speed is less than a second preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, controlling the passenger vehicle to power off, wherein the duration of clicking the start button is greater than a second preset time threshold.

[0015] According to an embodiment of the present application, the method further includes: when the passenger vehicle is in the vehicle power distribution mode, obtaining the vehicle speed of the passenger vehicle; when the vehicle speed is greater than or equal to a third preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, then switching to the accessory power distribution mode, wherein the duration of clicking the start button is greater than a third preset time threshold.

[0016] According to an embodiment of the present application, the states of the passenger vehicle power system include a power-ready and drivable state and a power-off and non-drivable state. The method further includes: when the state of the power system is the power-off and non-drivable state, or when the passenger vehicle is in the accessory power distribution mode, if an instruction signal generated by the driver clicking the start button, an instruction signal generated by the driver stepping on the brake pedal, and the remote control key are within the preset range of the passenger vehicle are received, controlling the state of the power system to be the power-ready and drivable state; when the state of the power system switches to the power-ready and drivable state, if a signal indicating that the passenger vehicle has a fault or a signal indicating that a charging gun is inserted is received, then controlling the state of the power system to switch to the power-off and non-drivable state, wherein the duration of clicking the start button is less than a fourth preset time threshold.

[0017] According to an embodiment of the present application, the method further includes: when the state of the power system is the power-off and non-drivable state, or when the state of the power system is the power-ready and drivable state, or when the passenger vehicle is in the accessory power distribution mode, if the DC-DC converter of the passenger vehicle fails, the vehicle speed is less than a fourth vehicle speed threshold, and the gear is in the parking gear, then controlling the passenger vehicle to power off after a preset time; if the battery of the passenger vehicle has a thermal runaway, the vehicle speed is less than a fifth vehicle speed threshold, and the gear is in the parking gear, then controlling the passenger vehicle to power off.

[0018] To achieve the above object, a vehicle proposed in the second aspect embodiment of the present application includes a memory, a processor, and a program stored on the memory and executable on the processor. When the processor executes the program, the above vehicle control method is implemented.

[0019] The vehicle according to the embodiment of the present application can solve the problem of inconvenient boarding of small buses and improve the experience of daily use of the vehicle by electrically opening and closing the power distribution permission door by executing the above vehicle control method.

[0020] To achieve the above object, an embodiment of the third aspect of the present application provides a vehicle control device, which is applied to a passenger vehicle with individual doors. The device includes: a receiving module, configured to receive a vehicle unlocking signal of the passenger vehicle when the passenger vehicle is powered off; a control module, configured to control the passenger vehicle to enter an accessory power distribution mode in response to the vehicle unlocking signal, and in the accessory power distribution mode, the vehicle supplies power to the controller of the door; the control module is further configured to send an unlocking instruction to the controller to control the door to unlock.

[0021] According to the vehicle control device of the embodiment of the present application, the receiving module is configured to receive the vehicle unlocking signal of the passenger vehicle when the passenger vehicle is powered off, and the control module is configured to control the passenger vehicle to enter the accessory power distribution mode in response to the vehicle unlocking signal. In the accessory power distribution mode, the vehicle supplies power to the controller of the door, and the control module is further configured to send an unlocking instruction to the controller to control the door to unlock. Thus, the device can allow the door to be electrically opened and closed through power distribution, solve the problem of inconvenient boarding of small buses, and improve the experience of daily use of the vehicle.

[0022] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0023] Figure 1 It is a flowchart of a vehicle control method according to an embodiment of the present application;

[0024] Figure 2 It is a schematic diagram of vehicle power distribution according to a specific example of the present application;

[0025] Figure 3 It is a block diagram of a vehicle according to an embodiment of the present application;

[0026] Figure 4 It is a block diagram of a vehicle control device according to an embodiment of the present application. Detailed Embodiments

[0027] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0028] The vehicle control method, vehicle, and vehicle control device proposed by the embodiments of the present application will be described below with reference to the drawings.

[0029] Figure 1 It is a flowchart of a vehicle control method according to an embodiment of the present application.

[0030] As Figure 1 shown, the vehicle control method of the embodiment of the present application may include the following steps:

[0031] S1. When the passenger vehicle is powered off, receive the vehicle unlocking signal of the passenger vehicle;

[0032] S2. In response to the vehicle unlocking signal, control the passenger vehicle to enter the accessory power distribution mode, and in the accessory power distribution mode, the vehicle supplies power to the controller of the door;

[0033] S3. Send an unlocking instruction to the controller to control the door to unlock.

[0034] Specifically, in the embodiment of the present application, the vehicle control method is applied to a passenger vehicle with a separate door. For example, for a minibus, the passenger vehicle has only one plug door (electric door), and both the driver and passengers enter and exit the vehicle through this door. The general design of this door is that it can be electrically opened and closed only after the vehicle starts power distribution, and the vehicle usually uses a mechanical key to start.

[0035] Therefore, in order to optimize the use experience of minibus cars, first, when the passenger vehicle is powered off, receive the vehicle unlocking signal of the passenger vehicle. That is to say, when the vehicle is in the powered-off state, the power system of the vehicle is in the off state (OFF gear). At this time, most functions of the vehicle are in the standby or off state, but the anti-theft system and some low-power sensors of the vehicle may still be working to detect the unlocking signal. The unlocking signal is usually sent by the remote control key of the vehicle, and the remote control key sends an unlocking instruction to the vehicle through wireless communication (such as Bluetooth). For example, when the driver presses the "unlock" button on the remote control key, the remote control key will emit a specific wireless signal, which contains the unlocking instruction and the vehicle identification code. The vehicle is equipped with a receiving module (such as an antenna or a sensor) for receiving the wireless signal sent by the remote control key, and the receiving module transmits the received signal to the electronic control unit of the vehicle for processing. The electronic control unit can verify the received signal to confirm whether the signal comes from a legitimate remote control key (verified by the vehicle identification code). If the verification passes, the vehicle system recognizes the unlocking signal and enters the next operation.

[0036] The accessory power distribution mode (ACC gear) is a power mode in which some functions of the vehicle (such as door controllers, audio systems, etc.) can work normally, but the power system has not been activated. After receiving the unlock signal, the vehicle's power management system (such as the battery management system or the vehicle controller) switches the vehicle from the power-off state (OFF gear) to the accessory power distribution mode (ACC gear). This process is usually achieved by controlling the vehicle's relays or electronic switches to energize some circuits of the vehicle. In the accessory power distribution mode, the vehicle can supply power to the door controller. For example, the vehicle's door controller (used to control the electric opening and closing of the door), audio system, instrument panel and other accessory devices are powered. This mode allows the door controller to work when the vehicle is not fully started, so as to realize the opening and closing function of the electric door.

[0037] After the vehicle enters the accessory power distribution mode, the door controller has been powered and can perform the unlocking operation. The unlock command is used to control the door locking mechanism so that the door can be opened. That is, after the electronic control unit confirms that the vehicle has entered the ACC gear, it generates an unlock command. The unlock command is an electrical signal used to control the operation of the door locking mechanism. The unlock command is sent to the door controller through the vehicle's communication bus or dedicated line, and the door controller receives and parses the unlock command. The door controller can drive the door locking mechanism according to the unlock command to unlock the door. For example, the door locking mechanism may be a motor or an electromagnet, which changes its state after receiving the unlock command, thus releasing the door lock. After unlocking is completed, the vehicle system may prompt the user that the door has been unlocked through the door lock indicator or sound. At this time, the user can use the "electric door opening" button on the remote control key or manually operate the door handle to open the door.

[0038] Thus, the problem that the electric door of the minibus cannot be operated in the power-off state is solved, and the user experience is improved.

[0039] According to an embodiment of the present application, the vehicle control method further includes: when the passenger vehicle is in the accessory power distribution mode, receiving a door opening or door closing signal of the passenger vehicle; and in response to the door opening or door closing signal, controlling the door to open or close.

[0040] Specifically, when the passenger vehicle is in the accessory power distribution mode (ACC gear), some functions of the vehicle (such as the door controller) have obtained power supply and can receive and process the door opening or closing signals. For example, the door opening or closing signals can come from the signals sent by the user through the "electric door opening" or "electric door closing" buttons on the remote control key. The door controller (or the vehicle controller) receives the door opening or closing signals through the vehicle's communication system, and the controller analyzes the received signals to confirm the signal type and intention. The controller verifies the legality of the signals (such as whether they come from a legal remote control key or an in-vehicle button). If the signals are legal, the controller proceeds to the next operation.

[0041] If a "door opening" signal is received, the door controller drives the electric motor or actuator of the door to move the door from the closed state to the open state. During the door opening process, the controller continuously monitors the position and state of the door to ensure that the door opens smoothly. If a "door closing" signal is received, the door controller drives the electric motor or actuator of the door to move the door from the open state to the closed state. During the door closing process, the controller detects whether the door is fully closed and confirms whether the door locking mechanism has been correctly locked. In addition, after the door opening or closing is completed, the operation result may be fed back to the user through a sound prompt, a dashboard indicator light, or an external vehicle indicator light.

[0042] According to an embodiment of the present application, the vehicle control method further includes: when the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode, receiving the vehicle locking signal of the passenger vehicle; in response to the vehicle locking signal and when the doors are in the closed state, controlling the passenger vehicle to power off, and when the doors are not in the closed state, keeping the passenger vehicle in the accessory power distribution mode or in the vehicle power distribution mode unchanged.

[0043] When the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode, the vehicle locking signal of the passenger vehicle can also be received. That is, the vehicle locking signal refers to the "lock the car" instruction sent by the user through the remote control key or other means. The vehicle can receive the locking signal both in the accessory power distribution mode (ACC gear) and in the vehicle power distribution mode (ON gear). The locking signal is usually sent by the "lock the car" button on the remote control key and is transmitted to the vehicle through wireless communication (such as Bluetooth). The locking signal can also be sent through an in-vehicle button or other devices (such as a mobile phone application). The receiving module of the vehicle (such as an antenna or a sensor) receives the locking signal and transmits it to the electronic control unit of the vehicle. The electronic control unit verifies the received locking signal to confirm its legality (such as whether it comes from a legal remote control key). Before responding to the locking signal, the state of the doors will be detected to determine whether the doors are in the closed state.

[0044] If the vehicle door is detected to be in the closed state, the door controller can drive the door locking mechanism to lock the door, and the vehicle's power management system will switch the vehicle from the accessory power distribution mode (ACC gear) or the vehicle power distribution mode (ON gear) to the power-off state (OFF gear). The vehicle can also provide feedback to the user through audible prompts or external vehicle indicators that the vehicle has been successfully locked and powered off. If the vehicle door is detected to be in the unclosed state, the vehicle system will maintain the current power mode unchanged (accessory power distribution mode or vehicle power distribution mode), and can also remind the user through audible prompts or dashboard warning messages that the door is not closed and the locking operation cannot be completed. The vehicle remains in the current power mode (ACC gear or ON gear) to ensure that the door controller or other functions can continue to operate until the door is closed.

[0045] Thus, by intelligently detecting the door state and responding to user operations, the safety and convenience of the vehicle in different scenarios are ensured, while avoiding misoperations or safety hazards caused by the unclosed door.

[0046] According to an embodiment of the present application, one or more of the vehicle unlocking signal, the door opening signal, and the door closing signal are generated by a remote control key or a terminal device, or the vehicle unlocking signal is generated by a preset diagnostic instruction, or the vehicle unlocking signal is generated when the remote control key is within a preset range of the passenger vehicle and the driver clicks the start button of the passenger vehicle, wherein the duration of clicking the start button is less than a first preset time threshold. The preset range and the first preset time threshold can be determined according to the actual situation.

[0047] Specifically, one or more of the vehicle unlocking signal, door opening signal, and door closing signal can be generated by a remote control key or a terminal device. That is, the remote control key is a wireless control device for the vehicle, usually equipped with multiple buttons such as "unlock", "lock the car", "electrically open the door", and "electrically close the door". The remote control key communicates with the vehicle's receiving module through wireless communication (such as RFID (Radio Frequency Identification), Bluetooth, or UWB (Ultra-Wideband)). When the user presses the "unlock" button on the remote control key, the remote control key sends a wireless signal containing an unlock instruction, and the signal contains the vehicle identification number (VIN) or other encrypted information to ensure the legality and security of the signal. The "electrically open the door" button on the remote control key sends a door opening signal, and the "electrically close the door" button sends a door closing signal. These signals are transmitted through the vehicle's communication system (such as the CAN (Controller Area Network) bus) to the door controller to perform corresponding actions. The terminal device can be a smartphone, smartwatch, or other device that supports vehicle control functions. The user sends unlock, door opening, or closing instructions through the vehicle control application (App) on the terminal device. The terminal device can communicate with the vehicle through Bluetooth, NFC, or a mobile network (such as 4G / 5G) to achieve remote control functions.

[0048] Preset diagnostic instructions are usually used in vehicle repair and diagnostic scenarios, allowing technicians to control the vehicle through specific tools or devices. Technicians use professional diagnostic tools (such as an OBD-II scanner) to connect to the vehicle's diagnostic interface (OBD-II interface). The diagnostic tool communicates with the vehicle's electronic control unit through the vehicle's communication bus (such as the CAN bus). The diagnostic tool can send preset unlock instructions, which are designed by the vehicle manufacturer for repair and diagnostic purposes. The unlock instructions are sent from the diagnostic tool to the vehicle's electronic control unit, and the electronic control unit performs the unlock operation after verifying the instructions. This unlocking method is usually used when technicians need to enter the vehicle for inspection or repair during vehicle maintenance. It can also be used in vehicle remote diagnosis or software update scenarios to ensure that the vehicle can be safely accessed in a specific mode.

[0049] In addition, the vehicle unlocking signal can also be generated by the driver clicking the start button. That is to say, when the current driver has entered the vehicle, the vehicle unlocking signal can be generated when the remote control key is within the preset range of the passenger vehicle and the driver clicks the start button of the passenger vehicle. That is, the remote control key needs to be within the preset range of the vehicle (such as within 1 meter around the vehicle) for the vehicle to detect the presence of the key. The vehicle detects whether the remote control key is inside or near the vehicle through a low-frequency signal (such as 125 kHz). After the driver enters the vehicle, press the start button (SSB). If the remote control key is within the preset range, the vehicle will detect the presence of the key and allow the start button to be operated. And the duration of clicking the start button needs to be less than the first preset time threshold (such as 0.5 seconds). If the click time is too long (such as more than 0.5 seconds), the vehicle may perform other operations (such as starting the engine or entering the diagnostic mode). When the above conditions are met, the electronic control unit of the vehicle will generate an unlocking signal to switch the vehicle from the power-off state (OFF gear) to the accessory power distribution mode (ACC gear). At the same time, the door controller will release the door lock and allow the driver to open the door.

[0050] Thus, through these diverse signal triggering methods, the vehicle can flexibly implement the unlocking and door control functions according to different usage scenarios and user requirements, improving the user experience and the safety of the vehicle.

[0051] According to an embodiment of the present application, the vehicle control method further includes: when the passenger vehicle is in the vehicle power distribution mode, obtaining the vehicle speed of the passenger vehicle; when the vehicle speed is less than the first preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, controlling the passenger vehicle to switch to the accessory power distribution mode, wherein the duration of clicking the start button is less than the first preset time threshold. Wherein, the first preset vehicle speed threshold and the first preset time threshold can be determined according to the actual situation.

[0052] Specifically, when the vehicle is in the vehicle power distribution mode, the vehicle speed of the passenger vehicle can be obtained. Among them, the vehicle power distribution mode (ON gear) is one of the power modes of the vehicle. At this time, all functions of the vehicle (including the power system, door controller, electronic devices, etc.) have been activated and are working properly. The vehicle is in a drivable state, the power system is in the "Ready" state, and the driver can drive the vehicle at any time. The passenger vehicle is usually equipped with a vehicle speed sensor for measuring the actual driving speed of the passenger vehicle. The vehicle speed sensor is usually installed on the wheel or the drive shaft, and calculates the vehicle speed by measuring the rotation speed of the wheel. The sensor converts the vehicle speed signal into an electrical signal and sends it to the electronic control unit of the vehicle through the vehicle communication bus (such as the CAN bus). The first preset vehicle speed threshold is a set value used to determine whether the vehicle is in a low-speed or stationary state. For example, the first preset vehicle speed threshold can be set to 5 km / h, and the specific value is determined according to the design requirements and usage scenarios of the vehicle.

[0053] The current vehicle speed is judged. When the vehicle speed is less than the first preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, the passenger vehicle can be controlled to switch to the accessory power distribution mode. That is to say, when the vehicle speed is less than the first preset vehicle speed threshold, the driver presses the start button (SSB). Pressing the start button generates an electrical signal, and this signal is transmitted to the electronic control unit through the vehicle's communication system. The first preset time threshold is a set time value used to distinguish short presses and long presses. For example, this time threshold can be set to 0.5 seconds or 1 second. If the duration of the driver clicking the start button is less than this time threshold, it is judged as a "short press" operation. When the vehicle speed is less than the first preset vehicle speed threshold (the vehicle is in a low-speed or stationary state), and the driver short presses the start button (the click duration is less than the first preset time threshold), the electronic control unit will control the vehicle to switch from the vehicle power distribution mode (ON gear) to the accessory power distribution mode (ACC gear). The electronic control unit sends an instruction to the vehicle's power management system to switch the vehicle's power mode from ON gear to ACC gear. In the ACC gear, the vehicle's power system is cut off (the power state becomes "Not Ready"), but the accessory devices (such as the door controller, audio system, etc.) still remain powered.

[0054] For example, when the vehicle is in a low-speed or stationary state (such as waiting for a traffic light or in a traffic jam), the driver may need to temporarily turn off the power system to save energy or reduce noise. After switching to the ACC gear, the vehicle's power system is cut off, but the accessory devices can still be used normally, which is convenient for the driver to use in-vehicle electronic devices when parking. Thus, a convenient operation method is provided. The driver can quickly switch the power mode by short pressing the start button, which can ensure that only the power is cut off but the whole vehicle does not lose power. Thus, the vehicle power mode can be quickly switched in a specific scenario, improving the user experience and the vehicle's energy-saving effect.

[0055] According to an embodiment of the present application, the vehicle control method further includes: when the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode, obtaining the vehicle speed of the passenger vehicle; when the vehicle speed is less than the second preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, then controlling the passenger vehicle to power off, where the duration of clicking the start button is greater than the second preset time threshold. Among them, the second preset vehicle speed threshold and the second preset time threshold can be determined according to the actual situation.

[0056] Specifically, when the passenger vehicle is in the accessory power distribution mode or the vehicle-wide power distribution mode, the vehicle speed of the passenger vehicle can be obtained. Among them, in the accessory power distribution mode (ACC gear), some functions of the vehicle (such as the door controller, audio system, etc.) are in the working state, but the power system is not activated. In the vehicle-wide power distribution mode (ON gear), all functions of the vehicle are activated, the power system is in the "Ready" state, and the vehicle can drive normally. In these two modes, the vehicle's power management system (such as the battery management system or the vehicle controller) will decide whether to perform a power-off operation according to the vehicle speed and the driver's operation.

[0057] The second preset vehicle speed threshold is a set value used to determine whether the vehicle is in a low-speed or stationary state. For example, this threshold can be set to 5 km / h, and the specific value is determined according to the vehicle's design requirements and usage scenarios. When the vehicle speed is less than the second preset vehicle speed threshold, the driver presses the start button (SSB). Pressing the start button generates an electrical signal, which is transmitted to the electronic control unit through the vehicle's communication system. The second preset time threshold is a set time value used to distinguish between short presses and long presses. For example, this time threshold can be set to 3 seconds. If the duration of the driver pressing the start button is greater than this time threshold, it is determined as a "long press" operation. Thus, when the vehicle speed is less than the second preset vehicle speed threshold (the vehicle is in a low-speed or stationary state) and the driver long-presses the start button (the click duration is greater than the second preset time threshold), the vehicle can be controlled to switch from the current mode (ACC gear or ON gear) to the power-off mode (OFF gear). Thus, it solves the problem that existing vehicle models all "start the vehicle" through a mechanical key, but are equipped with a separate switch for the "emergency power-off" scenario, and the driver operates in two different ways, resulting in a redundant and complex system. This application can reuse the start switch to meet the "emergency power-off" functional requirements, with unified operations.

[0058] According to an embodiment of the present application, the vehicle control method further includes: when the passenger vehicle is in the vehicle-wide power distribution mode, obtaining the vehicle speed of the passenger vehicle; when the vehicle speed is greater than or equal to the third preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, then switching to the accessory power distribution mode, where the duration of clicking the start button is greater than the third preset time threshold. Among them, the third preset vehicle speed threshold and the third preset time threshold can be determined according to the actual situation.

[0059] Specifically, when the passenger vehicle is in the vehicle power distribution mode, the vehicle speed of the passenger vehicle is obtained. The vehicle speed is judged. When the vehicle speed is greater than or equal to the third preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, the vehicle can be switched to the accessory power distribution mode. The third preset vehicle speed threshold is a set value used to judge whether the vehicle is at a relatively high driving speed. For example, this threshold can be set to 10 km / h, and the specific value is determined according to the design requirements and usage scenarios of the vehicle. When the vehicle speed is greater than or equal to the third preset vehicle speed threshold, the driver presses the start button (SSB). Pressing the start button generates an electrical signal, and this signal is transmitted to the electronic control unit through the vehicle's communication system. The third preset time threshold is a set time value used to distinguish short presses and long presses. For example, this time threshold can be set to 3 seconds. If the duration of the driver pressing the start button is greater than this time threshold, it is judged as a "long press" operation.

[0060] Thus, when the vehicle speed is greater than or equal to the third preset vehicle speed threshold (the vehicle is at a relatively high driving speed) and the driver long presses the start button (the click duration is greater than the third preset time threshold), the vehicle can be controlled to switch from the vehicle power distribution mode (ON gear) to the accessory power distribution mode (ACC gear). For example, on a highway, the vehicle may need to stop temporarily due to an emergency (such as vehicle failure or traffic control). The driver can quickly switch the vehicle to the ACC gear by long pressing the start button, cut off the power system, while retaining the power supply for the accessory devices, facilitating the use of in-vehicle electronic devices (such as mobile phone charging, navigation, etc.), and can ensure the vehicle's steering and braking functions. Thus, by combining the vehicle speed and the driver's long press operation, the vehicle power mode can be quickly switched in the high-speed driving scenario, improving the user experience and vehicle safety.

[0061] According to an embodiment of the present application, the state of the power system of the passenger vehicle includes a power-ready drivable state and a power-off prohibited driving state. The vehicle control method further includes: when the state of the power system is the power-off prohibited driving state, or when the passenger vehicle is in the accessory power distribution mode, if an instruction signal generated by the driver clicking the start button is received, an instruction signal generated by the driver stepping on the brake pedal is received, and the remote control key is within the preset range of the passenger vehicle, control the state of the power system to switch to the power-ready drivable state; when the state of the power system is the power-ready drivable state, if a signal indicating that the passenger vehicle has a fault or a signal indicating that the charging gun is inserted is received, then control the state of the power system to switch to the power-off prohibited driving state. The duration of clicking the start button is less than the fourth preset time threshold, and the preset range can be determined according to the actual situation.

[0062] Specifically, the states of the powertrain of a passenger vehicle include a power-ready drivable state and a power-off non-drivable state. That is, the power-ready drivable state (Ready) indicates that the powertrain is activated, the vehicle is in a drivable state, the engine or motor has been started, and the vehicle can respond to the driver's acceleration request. The power-off non-drivable state (Not Ready) indicates that the powertrain is cut off, the vehicle is in a non-drivable state, the engine or motor has not been started, and the vehicle cannot respond to the acceleration request.

[0063] In the case where the state of the powertrain is the power-off non-drivable state, or, in the case where the passenger vehicle is in the accessory power distribution mode, if an instruction signal generated by the driver clicking the start button is received, an instruction signal generated by the driver stepping on the brake pedal is received, and the remote control key is within the preset range of the passenger vehicle, the state of the powertrain can be controlled to be the power-ready drivable state. That is to say, when the vehicle has been started, but the powertrain has not been activated (for example, the vehicle is in a temporary stop state), or the vehicle is in a low-power mode and the powertrain is not activated, the driver presses the start button (SSB) to generate an instruction signal, and the driver steps on the brake pedal to generate an instruction signal. This operation is usually used to ensure that the vehicle is stationary and to avoid accidental movement when switching the powertrain. Also, the remote control key needs to be within the sensing range of the vehicle (such as inside the vehicle or within 1 meter around the vehicle). The vehicle detects the presence of the remote control key through a low-frequency signal to ensure that the vehicle is in a legal operating state. When the above three conditions are simultaneously met, the electronic control unit of the vehicle will perform the following operations: activate the powertrain, send an instruction to the powertrain controller to switch the powertrain from the "Not Ready" state to the "Ready" state, and the vehicle will prompt the driver through the indicator light or sound on the instrument panel that the powertrain has been activated and the vehicle can drive. Among them, the fourth preset time threshold is a set time value used to distinguish between short presses and long presses. For example, this time threshold can be set to 1 second. If the duration of the driver pressing the start button is less than this time threshold, it is determined as a "short press" operation.

[0064] When the power system is in the power-ready and drivable state, if a signal indicating that the passenger vehicle has a fault or that the charging gun is inserted is received, the state of the power system can be controlled to the power-off and non-drivable state. That is to say, when the power system is activated and the vehicle is in a drivable state, if the vehicle's fault detection system (such as an ECU or a fault diagnosis module) detects a fault in the vehicle, the power system needs to be cut off to ensure safety, or the charging gun is inserted into the vehicle's charging interface and the vehicle detects a charging signal, the power system automatically switches to the "Not Ready" state to prevent the vehicle from driving during charging. Thus, the state of the power system can be controlled to the power-off and non-drivable state, that is, the power system is switched from "Ready" to "Not Ready" state.

[0065] Thus, by combining vehicle status, driver operations, and external conditions, the intelligent dynamic switching of the power system is achieved, improving the safety and user experience of the vehicle.

[0066] According to an embodiment of the present application, the vehicle control method further includes: when the power system is in the power-off and non-drivable state, or when the power system is in the power-ready and drivable state, or when the passenger vehicle is in the accessory power distribution mode, if the DC-DC converter of the passenger vehicle fails, the vehicle speed is less than a fourth vehicle speed threshold, and the gear is in the park gear, then control the passenger vehicle to power off after a preset time; if the battery of the passenger vehicle has thermal runaway, the vehicle speed is less than a fifth vehicle speed threshold, and the gear is in the park gear, then control the passenger vehicle to power off. Wherein, the fourth vehicle speed threshold, the preset time, and the fifth vehicle speed threshold can be determined according to actual situations.

[0067] Specifically, when the power system is in the power-off and non-drivable state, or when the power system is in the power-ready and drivable state, or when the passenger vehicle is in the accessory power distribution mode, if the DC-DC converter of the current passenger vehicle fails, the vehicle speed is less than a fourth vehicle speed threshold, and the gear is in the park gear, the passenger vehicle can be controlled to power off after a preset time. For example, the preset time can be 30 minutes, and the fourth vehicle speed threshold can be 5 km / h.

[0068] Thus, when the DC-DC converter of the vehicle fails, the vehicle speed is lower than the preset fourth vehicle speed threshold (5 km / h), and the vehicle's gear is in the park gear (P gear), the vehicle can be controlled to switch from the current mode (ON gear or ACC gear) to the power-off mode (OFF gear), cutting off all power supplies to ensure the safety of the vehicle.

[0069] Alternatively, when there is a thermal runaway in the battery of a passenger vehicle, the vehicle speed is less than the fifth vehicle speed threshold, and the gear is in the parking gear, the passenger vehicle can be controlled to power off. That is to say, when the vehicle's battery management system (BMS) detects a risk of thermal runaway in the battery, the vehicle speed is lower than the preset fifth vehicle speed threshold (e.g., 5 km / h), and the vehicle's gear is in the parking gear (P gear), the vehicle switches from the current mode (ON gear or ACC gear) to the power-off mode (OFF gear), cutting off all power supplies. And when powering off, the vehicle may activate an emergency cooling system or issue an alarm to cope with the risk of battery thermal runaway.

[0070] Thus, when a vehicle breaks down or is in a dangerous situation, automatic power-off can prevent the vehicle from moving accidentally and reduce the risk of accidents. For battery thermal runaway, timely power-off can prevent further damage to the battery or cause a fire. That is, by combining the vehicle's fault detection, vehicle speed, and gear state, automatic power-off in specific dangerous situations is achieved, improving the safety and reliability of the vehicle.

[0071] Combined with Figure 2 As shown, as a specific example, the power modes include OFF (shut off power distribution), ACC (accessory power distribution), ON (full vehicle power distribution), the power system states include Ready (power ready to drive), Not Ready (power cut off, not drivable), and SSB is the "start button". When the vehicle is in the OFF state, it can enter the ACC mode by receiving the unlocking signal of the key, or by a diagnostic command, or by pressing the SSB briefly and detecting the key. When the vehicle is in the OFF state, it can also directly enter the ON (READY) state by the driver stepping on the brake pedal, pressing the SSB briefly, and detecting the key. When the vehicle is in the ACC state, or in the ON (NOT READY) state, it can directly enter the ON (READY) mode and enter the ON (READY) state by the driver stepping on the brake pedal, pressing the SSB briefly, and detecting the key.

[0072] When the vehicle is in the ACC state, if the current doors are closed, the vehicle speed is less than 5 KM / h, the vehicle is in the P gear, and a locking command is received, the vehicle can enter the OFF state. If the vehicle speed is less than 5 KM / h and a command for the driver to long-press the SSB is received, the vehicle can enter the OFF state. If the vehicle enters the power-saving mode, it can enter the OFF state after one hour. If the DCDC fails, the vehicle speed is less than 5 KM / h, and the vehicle is in the P gear, it can enter the OFF state after 30 minutes. If there is a thermal runaway in the battery, the vehicle speed is less than 5 KM / h, and the vehicle is in the P gear, the vehicle can be controlled to enter the OFF state.

[0073] When the vehicle is in the ON (NOT READY) state, if the current vehicle door is closed, the vehicle speed is less than 5 KM / h, and the vehicle is in the P gear, after receiving the locking instruction, the vehicle can enter the OFF state. If the vehicle speed is less than 5 KM / h, after receiving the instruction that the driver long-presses the SSB, the vehicle can enter the OFF state. If the vehicle enters the power-saving mode, the vehicle can enter the OFF state after one hour. If the DCDC fails, the vehicle speed is less than 5 KM / h, and the vehicle is in the P gear, the vehicle can enter the OFF state after 30 minutes. If the battery has a thermal runaway, the vehicle speed is less than 5 KM / h, and the vehicle is in the P gear, the vehicle can be controlled to enter the OFF state. If the corresponding diagnostic instruction is received, the vehicle can be controlled to enter the OFF state. If the instruction of short-pressing the SSB is received and the key is detected, the vehicle can be controlled to enter the ACC state. If the corresponding diagnostic instruction is received, the vehicle can also be controlled to enter the ACC state.

[0074] When the vehicle is in the ON (READY) state, if the vehicle speed is less than 5 KM / h, after receiving the instruction that the driver long-presses the SSB, the vehicle can enter the OFF state. If the DCDC fails, the vehicle speed is less than 5 KM / h, and the vehicle is in the P gear, the vehicle can enter the OFF state after 30 minutes. If the battery has a thermal runaway, the vehicle speed is less than 5 KM / h, and the vehicle is in the P gear, the vehicle can be controlled to enter the OFF state. If the vehicle speed is less than 5 KM / h, after receiving the instruction that the driver short-presses the SSB, the vehicle can be controlled to enter the ACC state. Or when the vehicle speed is greater than 5 KM / h, after receiving the instruction that the driver long-presses the SSB, or after receiving 3 SSB instructions within 6 seconds, the vehicle can be controlled to enter the ACC state. If a fault signal or a charging signal with a plugged-in charging gun is detected, the vehicle can be controlled to enter the ON (NOT READY) state.

[0075] Therefore, a "unlock and power on" power distribution scheme is proposed. By allowing the door to be electrically opened and closed through power distribution, the problem of inconvenient boarding of small buses is solved. A scheme of short-pressing the "start button" to switch the power distribution between "ON" and "OFF" is proposed to solve the problem of inconvenient alighting of small buses. A scheme of combining the "start button" and the "emergency power-off button" is proposed to solve the current problem of separated operations of small buses. Thus, the usage experience of small bus users can be significantly improved.

[0076] In summary, according to the vehicle control method of the embodiment of the present application, when the passenger vehicle is powered off, the vehicle unlock signal of the passenger vehicle is received. In response to the vehicle unlock signal, the passenger vehicle is controlled to enter the accessory power distribution mode. In the accessory power distribution mode, the vehicle supplies power to the controller of the vehicle door, and an unlock instruction is sent to the controller to control the vehicle door to unlock. Thus, this method can solve the problem of inconvenient boarding of small buses by allowing the door to be electrically opened and closed through power distribution, and improve the experience of daily use of the vehicle.

[0077] Corresponding to the above embodiments, the present application also provides a vehicle.

[0078] As Figure 3 shown, the vehicle 200 according to the embodiment of the present application may include: a memory 210, a processor 220, and a program stored on the memory 210 and executable on the processor 220. When the processor 220 executes the program, the above vehicle control method is implemented.

[0079] According to the vehicle of the embodiment of the present application, by executing the above vehicle control method, the electric opening and closing of the distribution permission door can be realized, the problem of inconvenient boarding of small buses can be solved, and the experience of daily use of the vehicle can be improved.

[0080] Corresponding to the above embodiments, the present application also provides a vehicle control device.

[0081] As Figure 4 shown, the vehicle control device 100 according to the embodiment of the present application includes: a receiving module 110 and a control module 120.

[0082] Wherein, the receiving module 110 is configured to receive the vehicle unlocking signal of the passenger vehicle when the passenger vehicle is powered off. The control module 120 is configured to control the passenger vehicle to enter the accessory power distribution mode in response to the vehicle unlocking signal, and the vehicle supplies power to the controller of the door in the accessory power distribution mode. The control module 120 is further configured to send an unlocking instruction to the controller to control the door to unlock.

[0083] According to an embodiment of the present application, the control module 120 is further configured to: receive the door opening or door closing signal of the passenger vehicle when the passenger vehicle is in the accessory power distribution mode.

[0084] According to an embodiment of the present application, the control module 120 is further configured to: control the door to open or close in response to the door opening or door closing signal; receive the vehicle locking signal of the passenger vehicle when the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode; in response to the vehicle locking signal, and when the door is in the closed state, control the passenger vehicle to power off, and when the door is not in the closed state, keep the state of the passenger vehicle in the accessory power distribution mode or in the vehicle power distribution mode unchanged.

[0085] According to an embodiment of the present application, one or more of the vehicle unlocking signal, the door opening signal, and the door closing signal are generated by a remote control key or a terminal device, or the vehicle unlocking signal is generated by a preset diagnostic instruction, or the vehicle unlocking signal is generated when the remote control key is within the preset range of the passenger vehicle and the driver clicks the start button of the passenger vehicle, wherein the duration of clicking the start button is less than the first preset time threshold.

[0086] According to an embodiment of the present application, the control module 120 is further configured to: when the passenger vehicle is in the vehicle power distribution mode, obtain the vehicle speed of the passenger vehicle; in the case where the vehicle speed is less than the first preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, control the passenger vehicle to switch to the accessory power distribution mode, wherein the duration of clicking the start button is less than the first preset time threshold.

[0087] According to an embodiment of the present application, the control module 120 is further configured to: when the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode, obtain the vehicle speed of the passenger vehicle; in the case where the vehicle speed is less than the second preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, control the passenger vehicle to power off, wherein the duration of clicking the start button is greater than the second preset time threshold.

[0088] According to an embodiment of the present application, the control module 120 is further configured to: when the passenger vehicle is in the vehicle power distribution mode, obtain the vehicle speed of the passenger vehicle; in the case where the vehicle speed is greater than or equal to the third preset vehicle speed threshold, if an instruction signal generated by the driver clicking the start button is received, switch to the accessory power distribution mode, wherein the duration of clicking the start button is greater than the third preset time threshold.

[0089] According to an embodiment of the present application, the state of the passenger vehicle power system includes a power ready-to-drive state and a power cut-off prohibited driving state. The control module 120 is further configured to: in the case where the state of the power system is the power cut-off prohibited driving state, or, when the passenger vehicle is in the accessory power distribution mode, if an instruction signal generated by the driver clicking the start button, an instruction signal generated by the driver stepping on the brake pedal, and the remote control key are within the preset range of the passenger vehicle are received, control the state of the power system to switch to the power ready-to-drive state; in the case where the state of the power system is the power ready-to-drive state, if a failure of the passenger vehicle occurs or a signal indicating that the charging gun is inserted is received, control the state of the power system to switch to the power cut-off prohibited driving state, wherein the duration of clicking the start button is less than the fourth preset time threshold.

[0090] According to an embodiment of the present application, the control module 120 is further configured to: in the case where the state of the power system is the power cut-off prohibited driving state, or, in the case where the state of the power system is the power ready-to-drive state, or, when the passenger vehicle is in the accessory power distribution mode, if the DC-DC converter of the passenger vehicle fails, the vehicle speed is less than the fourth vehicle speed threshold, and the gear is in the parking gear, control the passenger vehicle to power off after a preset time; if the battery of the passenger vehicle has a thermal runaway, the vehicle speed is less than the fifth vehicle speed threshold, and the gear is in the parking gear, control the passenger vehicle to power off.

[0091] It should be noted that for the details not disclosed in the vehicle control device according to the embodiments of the present application, please refer to the details disclosed in the vehicle control method according to the embodiments of the present application, and will not be elaborated here specifically.

[0092] According to the vehicle control device according to the embodiments of the present application, the receiving module is configured to receive a vehicle unlocking signal of a passenger vehicle when the passenger vehicle is powered off, and the control module is configured to control the passenger vehicle to enter an accessory power distribution mode in response to the vehicle unlocking signal. In the accessory power distribution mode, the vehicle supplies power to the controller of the vehicle door, and the control module is further configured to send an unlocking instruction to the controller to control the vehicle door to unlock. Thus, the device can allow the door to be electrically opened and closed through power distribution, solve the problem of inconvenient boarding of a minibus, and improve the experience of daily use of the vehicle.

[0093] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion having one or more wirings (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or other appropriate processing as necessary, and then stored in a computer memory.

[0094] It should be understood that each part of this application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0096] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0097] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0098] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A vehicle control method, characterized in that: Applied to a passenger vehicle with a single door, the method comprises the following steps: When the passenger vehicle is powered off, receiving a vehicle unlocking signal of the passenger vehicle; In response to the vehicle unlock signal, controlling the passenger vehicle to enter an accessory power distribution mode in which the vehicle supplies power to a controller of the vehicle door; An unlocking command is sent to the controller to control the vehicle door to unlock.

2. The vehicle control method according to claim 1, characterized in that: The method further comprises: When the passenger vehicle is in the accessory power distribution mode, receiving a door opening or door closing signal of the passenger vehicle; In response to the door opening signal or the door closing signal, the door is controlled to open or close.

3. The vehicle control method according to claim 1, characterized in that: The method further comprises: When the passenger vehicle is in the accessory power distribution mode or in the vehicle power distribution mode, receiving a vehicle locking signal of the passenger vehicle; When the vehicle door is in a closed state, in response to the vehicle locking signal, the passenger vehicle is controlled to be powered off; when the vehicle door is not in a closed state, the passenger vehicle is kept in the accessory power distribution mode or the whole vehicle power distribution mode.

4. The vehicle control method according to claim 3, characterized in that: One or more of the vehicle unlocking signal, the door opening signal and the door closing signal are generated by a remote control key or a terminal device, or the vehicle unlocking signal is generated by a preset diagnostic instruction, or the vehicle unlocking signal is generated by the driver clicking a start button of the passenger vehicle when the remote control key is within a preset range of the passenger vehicle, wherein the duration of clicking the start button is less than a first preset time threshold.

5. The vehicle control method according to claim 4, characterized in that: The method further comprises: When the passenger vehicle is in the whole vehicle power distribution mode, obtaining the speed of the passenger vehicle; When the vehicle speed is less than a first preset vehicle speed threshold, if a command signal generated by the driver clicking the start button is received, the passenger vehicle is controlled to switch to the accessory power distribution mode, wherein the duration of clicking the start button is less than the first preset time threshold.

6. The vehicle control method according to claim 4, characterized in that: The method further comprises: When the passenger vehicle is in the accessory power distribution mode or the whole vehicle power distribution mode, obtaining the vehicle speed of the passenger vehicle; When the vehicle speed is less than a second preset vehicle speed threshold, if a command signal generated by the driver clicking the start button is received, the passenger vehicle is controlled to power off, wherein the duration of clicking the start button is greater than a second preset time threshold.

7. The vehicle control method according to claim 4, characterized in that: The method further comprises: When the passenger vehicle is in the whole vehicle power distribution mode, obtaining the speed of the passenger vehicle; When the vehicle speed is greater than or equal to a third preset vehicle speed threshold, if a command signal generated by the driver clicking the start button is received, the mode is switched to the accessory power distribution mode, wherein the duration of clicking the start button is greater than a third preset time threshold.

8. The vehicle control method according to any one of claims 1 to 7, characterized in that: The state of the passenger vehicle power system includes a power-ready driving state and a power-cut driving-prohibited state, and the method further includes: When the state of the power system is the power cut-off driving prohibited state, or when the passenger vehicle is in the accessory power distribution mode, if a command signal generated by the driver clicking the start button and a command signal generated by the driver stepping on the brake pedal are received and the remote control key is within the preset range of the passenger vehicle, the state of the power system is controlled to switch to the power ready driving state; When the state of the power system is the power-ready driving state, if a signal is received indicating that the passenger vehicle has a fault or a charging gun is inserted, the state of the power system is controlled to switch to the power-cut driving prohibited state.

9. The vehicle control method according to claim 8, characterized in that: The method further comprises: When the power system is in the power cut-off prohibited driving state, or when the power system is in the power ready driving state, or when the passenger vehicle is in the accessory power distribution mode, if a DC-DC converter of the passenger vehicle fails, the vehicle speed is less than a fourth vehicle speed threshold, and the gear is in the parking gear, the passenger vehicle is controlled to be powered off after a preset time; If the battery of the passenger vehicle is in thermal runaway, the vehicle speed is less than a fifth vehicle speed threshold, and the gear is in the parking gear, the passenger vehicle is controlled to be powered off.

10. A vehicle, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the vehicle control method according to any one of claims 1 to 9 is implemented.

11. A vehicle control device, characterized in that: Applicable to a passenger vehicle with a single door, the device comprises: A receiving module, used for receiving a vehicle unlocking signal of the passenger vehicle when the passenger vehicle is powered off; a control module, responsive to the vehicle unlock signal, for controlling the passenger vehicle to enter an accessory power distribution mode in which the vehicle supplies power to a controller of the vehicle door; The control module is further used to send an unlocking instruction to the controller to control the vehicle door to unlock.

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