Method and device for controlling power-on and power-off of vehicle, vehicle and storage medium

Abstract

The invention provides a method and device for controlling power-on and power-off of a vehicle, the vehicle and a storage medium, the method is applied to the field of vehicle control, and the method comprises the steps that under the condition that the vehicle is in an unlocked state, the vehicle is unlocked according to communication parameters between a target key and the vehicle, or according to state parameters and the communication parameters of the vehicle; whether the vehicle meets a preset power-on condition or not is determined, and the state parameters are used for representing the running state of vehicle parts and / or the receiving state of control signals; under the condition that the vehicle meets the preset power-on condition, whether the vehicle meets the preset power-off condition or not is determined according to the state parameters and the communication parameters; and under the condition that the vehicle meets the preset power-off condition, the vehicle is controlled to be powered off. According to the method, a user does not need to start the system manually to power on and power off through one key, an intelligent power-on and power-off mode is provided for the user, the problem that power-off is forgotten due to manual power-on and power-off is avoided, and the power-on and power-off experience of the user is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control, and more specifically, to a method, device, vehicle and storage medium for controlling power on and off of a vehicle in the field of vehicle control. Background Art

[0002] At present, for new energy vehicles, when the vehicle is at low speed or stationary, the power battery in the vehicle generally supplies power to the entire vehicle. When the vehicle is equipped with a one-button start system, the user can control the vehicle's power on and off by pressing the switch of the one-button start system.

[0003] In one driving scenario, when the user triggers the vehicle to power on through the one-button start system, the power battery supplies power to the entire vehicle to drive the vehicle. Traditional internal combustion engine vehicles drive the vehicle by burning fuel in the engine. Therefore, the engine in traditional internal combustion engine vehicles will produce obvious noise and vibration when driving the vehicle, while when the power battery in new energy vehicles drives the vehicle, the noise inside the vehicle is significantly reduced due to the lack of engine operation. When getting off the vehicle, the user may not realize that the vehicle is still powered on, and thus forget to perform the power-off operation, causing the vehicle to remain powered after the user leaves the vehicle.

[0004] Based on the above-mentioned problem of users forgetting to perform the power-off operation due to manual power on and off, how to provide users with a more convenient way to power on and off the vehicle has become an issue that needs to be solved urgently. Summary of the invention

[0005] The present application provides a method, device, vehicle and storage medium for controlling the power on and off of a vehicle. The method can eliminate the need for the user to manually power on and off through a one-button start system, providing the user with an intelligent way to power on and off, avoiding the problem of forgetting to power on and off due to manual power on and off, and improving the user's power on and off experience.

[0006] In a first aspect, a method for controlling powering on and off of a vehicle is provided, the method comprising: when the vehicle is in an unlocked state, determining whether the vehicle meets a preset power-on condition based on a communication parameter between a target key and the vehicle, or based on a state parameter of the vehicle and the communication parameter, the communication parameter being used to indicate the communication quality between the vehicle and the target key, and the state parameter being used to indicate the operating state of the vehicle components and / or the reception state of a control signal; when the vehicle meets the preset power-on condition, determining whether the vehicle meets the preset power-off condition based on the state parameter and the communication parameter; and when the vehicle meets the preset power-off condition, controlling the vehicle to power off.

[0007] In the above technical solution, during the process of powering on and off the vehicle, in order to improve the user experience, this application proposes a method for controlling the automatic powering on and off of the vehicle. During the implementation of this method, the vehicle can automatically complete the powering on and off by automatically detecting the communication parameters between the target key and the vehicle and the operating status of the vehicle. The above process does not require manual triggering by the user. Compared with the one-button power-on and power-off method, it is more intelligent and convenient, and improves the convenience of powering on and off the vehicle. In addition, since the user may forget to power off during the one-button power-on and power-off process, the method of this application can further avoid this problem and enhance the safety of the vehicle.

[0008] In combination with the first aspect, in some possible implementations, the communication parameter includes communication signal strength or communication distance, and the determining whether the vehicle meets the preset power-on condition based on the communication parameter between the target key and the vehicle, or based on the state parameter of the vehicle and the communication parameter, includes: determining a target strength interval based on the communication signal strength; determining a target area where the target key is located based on the target strength interval; or determining a target distance interval based on the communication distance; determining the target area based on the target distance interval; determining whether the vehicle meets the preset power-on condition based on the target area, or based on the target area and the state parameter; and determining whether the vehicle meets the preset power-off condition based on the state parameter and the communication parameter, includes: determining whether the vehicle meets the preset power-off condition based on the target area, or based on the target area and the state parameter.

[0009] In combination with the first aspect and the above-mentioned implementation manner, in some possible implementation manners, the state parameter includes a door state, and the determining whether the vehicle meets the preset power-on condition based on the target area, or based on the target area and the state parameter, includes: when the target area is a first area outside the vehicle, obtaining a distance change trend between the target key and the vehicle within a first preset time period; when the distance change trend is decreasing, determining that the vehicle meets the preset power-on condition; when the distance change trend is increasing or remains unchanged, determining that the vehicle does not meet the preset power-on condition; when the target area is a second area outside the vehicle, determining that the vehicle meets the preset power-on condition, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; when the target area is a third area outside the vehicle, if the door state changes within a second preset time period, determining that the vehicle meets the preset power-on condition, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; if the door state does not change within the second preset time period, determining that the vehicle does not meet the preset power-on condition.

[0010] In the above technical solution, after the user unlocks the vehicle outside the vehicle with the target key, in the process of judging whether to control the vehicle to power on, several different areas outside the vehicle are set according to the different communication distances in this application. Each area outside the vehicle corresponds to different power-on and power-off judgment conditions. From then on, no matter which area outside the vehicle the target key is in, the vehicle can flexibly judge whether to automatically power on and off based on the judgment conditions of the area outside the vehicle. The above process sets the power-on conditions in a step-by-step manner according to the distance of the communication, so that the judgment process of power-on is flexible and personalized, and the accuracy of power-on is improved.

[0011] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the state parameter includes a gear position and a reception status of a locking instruction, and the determination of whether the vehicle meets the preset power-off condition is based on the target area and the state parameter, including: when the target area is an area outside the vehicle, if the reception status of the locking instruction is received, it is determined that the vehicle meets the preset power-off condition; if the reception status of the locking instruction is not received, it is determined that the vehicle does not meet the preset power-off condition; when the target area is an area inside the vehicle, if the reception status of the locking instruction is not received, it is determined that the vehicle does not meet the preset power-off condition; if the reception status of the locking instruction is received, it is determined whether the vehicle meets the preset power-off condition based on the gear position.

[0012] In the above technical solution, after the vehicle is powered on, the vehicle can further determine whether the vehicle needs to be powered off based on the two parameters provided in this application. According to the different areas where the target key is located, it is specifically divided into two scenarios. The first is when the target key is outside the vehicle and the vehicle receives a locking command. Since the user is not in the vehicle in this case, the vehicle can execute the power-off process regardless of whether the locking command is manually triggered or automatically triggered. If the vehicle does not receive a locking command, the vehicle will not be controlled to be powered off temporarily. The second is when the target key is in the car, which means the user is in the car. If the user triggers the locking command, in order to ensure the safety of powering off during the user's use of the car, the vehicle can determine whether it is necessary to control the vehicle to power off through the gear position. Therefore, when judging whether the vehicle needs to be powered off, the power-off conditions in each possible scenario are considered to ensure the accuracy and flexibility of powering off.

[0013] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the triggering step of the locking instruction includes: when the target area is the first area outside the vehicle or the second area outside the vehicle, if the door state changes within a third preset time period, the locking instruction is generated, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; when the target area is the third area outside the vehicle, if the door state changes within a fourth preset time period, the locking instruction is generated, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; when the target area is the first area outside the vehicle, the second area outside the vehicle, the third area outside the vehicle or the area inside the vehicle, the locking instruction sent by the target key is received.

[0014] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the determining whether the vehicle meets the preset power-off condition is based on the gear position, including: when the gear position is not the preset gear position, determining that the vehicle does not meet the preset power-off condition; when the gear position is the preset gear position, determining whether the reception status of the locking instruction is detected again as received within the fifth preset time length; when the reception status of the locking instruction is detected again as received within the fifth preset time length, determining that the vehicle meets the preset power-off condition; when the reception status of the locking instruction is not detected again as received within the fifth preset time length, determining that the vehicle does not meet the preset power-off condition.

[0015] In the above technical solution, when the vehicle is powered on, the target key is in the vehicle. After the user triggers the locking command in the vehicle, this application allows the vehicle to be locked and powered off only when the vehicle gear is in the parking gear, which can ensure the safety of the vehicle during the power-off process. Specifically, in the parking gear, after the user triggers the locking command, the vehicle can first execute the locking command, and further identify whether the locking command can still be received to identify whether the current power-off process is the user's subjective intention, so that the power-off process is executed only when the user confirms to power off, to prevent the vehicle from being accidentally powered off when the user is in the vehicle.

[0016] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the method also includes: when the target key is in the vehicle, in response to a triggering operation of a power-on control in the vehicle, controlling the vehicle to power on; when the target key is in the vehicle, in response to a triggering operation of a power-off control in the vehicle, controlling the vehicle to power off.

[0017] In a second aspect, a device for controlling the power on and off of a vehicle is provided, the device comprising: a first condition judgment module, for determining whether the vehicle meets a preset power-on condition based on a communication parameter between a target key and the vehicle, or based on a state parameter of the vehicle and the communication parameter, when the vehicle is in an unlocked state, the communication parameter being used to indicate the communication quality between the vehicle and the target key, and the state parameter being used to indicate the operating state of the vehicle components and / or the receiving state of the control signal; a second condition judgment module, for determining whether the vehicle meets a preset power-off condition based on the state parameter and the communication parameter, when the vehicle meets the preset power-on condition; and an operation control module, for controlling the power off of the vehicle, when the vehicle meets the preset power-off condition.

[0018] In combination with the second aspect, in some possible implementations, the communication parameter includes communication signal strength or communication distance, and the first condition judgment module is specifically used to: determine the target strength interval based on the communication signal strength; determine the target area where the target key is located based on the target strength interval; or, determine the target distance interval based on the communication distance; determine the target area based on the target distance interval; determine whether the vehicle meets the preset power-on condition based on the target area, or, based on the target area and the status parameter; and, the second condition judgment module is specifically used to: determine whether the vehicle meets the preset power-off condition based on the target area and the status parameter.

[0019] In combination with the second aspect and the above-mentioned implementation methods, in some possible implementation methods, the state parameter includes a door state, and the first condition judgment module is also used to: when the target area is a first area outside the vehicle, obtain a distance change trend between the target key and the vehicle within a first preset time period; when the distance change trend is decreasing, determine that the vehicle meets the preset power-on condition; when the distance change trend is increasing or remains unchanged, determine that the vehicle does not meet the preset power-on condition; when the target area is a second area outside the vehicle, determine that the vehicle meets the preset power-on condition, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; when the target area is a third area outside the vehicle, if the door state changes within a second preset time period, determine that the vehicle meets the preset power-on condition, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; if the door state does not change within the second preset time period, determine that the vehicle does not meet the preset power-on condition.

[0020] In combination with the second aspect and the above-mentioned implementation methods, in some possible implementation methods, the status parameter includes the gear position and the receiving status of the locking command, and the second condition judgment module is also used to: when the target area is the area outside the vehicle, if the receiving status of the locking command is received, determine that the vehicle meets the preset power-off condition; if the receiving status of the locking command is not received, determine that the vehicle does not meet the preset power-off condition; when the target area is the area inside the vehicle, if the receiving status of the locking command is not received, determine that the vehicle does not meet the preset power-off condition; if the receiving status of the locking command is received, determine whether the vehicle meets the preset power-off condition according to the gear position.

[0021] In combination with the second aspect and the above-mentioned implementation methods, in some possible implementation methods, the triggering step of the locking instruction includes: when the target area is the first area outside the vehicle or the second area outside the vehicle, if the door state changes within a third preset time period, the locking instruction is generated, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; when the target area is the third area outside the vehicle, if the door state changes within a fourth preset time period, the locking instruction is generated, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; when the target area is the first area outside the vehicle, the second area outside the vehicle, the third area outside the vehicle or the area inside the vehicle, the locking instruction sent by the target key is received.

[0022] In combination with the second aspect and the above-mentioned implementation methods, in some possible implementation methods, the second condition judgment module is also used to: when the gear position is not the preset gear position, determine that the vehicle does not meet the preset power-off condition; when the gear position is the preset gear position, determine whether the reception status of the locking instruction is detected again as received within the fifth preset time length; when the reception status of the locking instruction is detected again as received within the fifth preset time length, determine that the vehicle meets the preset power-off condition; when the reception status of the locking instruction is not detected again as received within the fifth preset time length, determine that the vehicle does not meet the preset power-off condition.

[0023] In combination with the second aspect and the above-mentioned implementation methods, in some possible implementation methods, the device also includes: a control module, which is used to control the vehicle to power on in response to a triggering operation of a power-on control in the vehicle when the target key is in the vehicle; and to control the vehicle to power off in response to a triggering operation of a power-off control in the vehicle when the target key is in the vehicle.

[0024] In a third aspect, a vehicle is provided, comprising a memory and a processor. The memory is used to store executable program code, and the processor is used to call and run the executable program code from the memory, so that the vehicle executes the method in the first aspect or any possible implementation of the first aspect.

[0025] In a fourth aspect, a computer program product is provided, comprising: a computer program code, which, when executed on a computer, enables the computer to execute the method in the first aspect or any possible implementation of the first aspect.

[0026] In a fifth aspect, a computer-readable storage medium is provided, which stores a computer program code. When the computer program code runs on a computer, the computer executes the method in the above-mentioned first aspect or any possible implementation manner of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a flow chart of powering on a vehicle high voltage system provided by an embodiment of the present application;

[0028] Figure 2 This is a flow chart of powering off a vehicle high voltage system provided by an embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of a scenario for controlling vehicle power on and off provided in an embodiment of the present application;

[0030] Figure 4 It is a structural schematic diagram of a system for controlling vehicle power on and off provided in an embodiment of the present application;

[0031] Figure 5 is a schematic flow chart of a method for controlling vehicle power on and off provided in an embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of a communication area division scenario provided in an embodiment of the present application;

[0033] Figure 7 It is a structural schematic diagram of a device for controlling vehicle power on and off provided in an embodiment of the present application;

[0034] Figure 8 It is a structural schematic diagram of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0036] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0037] Before introducing the solutions of the embodiments of the present application, the professional terms that may appear in the embodiments of the present application are first explained.

[0038] Vehicle power-on: refers to the process of powering on the high-voltage system of the vehicle, specifically the process of powering on the high-voltage components. Conversely, vehicle power-off refers to the process of powering off the high-voltage system of the vehicle, specifically the process of powering off the high-voltage components.

[0039] One-button start system: A convenient function in the vehicle that allows the user to start or shut down the engine without inserting a physical key. Specifically, when the user needs to control the vehicle to power on, the user can press or hold the one-button start button to trigger the vehicle to enter the high-voltage power-on process; conversely, when the user needs to control the vehicle to power off, the user can press the one-button start button again to trigger the vehicle to enter the high-voltage power-off process.

[0040] Passive Keyless Entry (PKE) switch: refers to the button of the keyless entry system, which is mainly used to control the passive unlocking and locking of the vehicle.

[0041] It should be understood that the vehicles mentioned in the following embodiments of the present application specifically refer to various types of new energy vehicles including hybrid vehicles or pure electric vehicles.

[0042] The following examples of the present application are first Figure 1-Figure 2 A detailed introduction to the power-on and power-off processes of the vehicle (high voltage system).

[0043] Figure 1 This is a flow chart of powering on a vehicle high voltage system provided in an embodiment of the present application.

[0044] For example, Figure 1 As shown, for a vehicle, the specific process of powering on the high-voltage system is as follows:

[0045] After the vehicle control unit (VCU) detects the wake-up signal from the telematics box (T-box), it wakes up the body control module (BCM), battery management system (BMS), on-board charger and other components through hard wires or controller area network (CAN) signals. After waking up, the high-voltage system components will perform an initial self-test and send out a successful self-test status; after the BMS detects that the power-on conditions are met, it controls the closing of the main negative contactor and feedback that the pre-charging contactor is in a closed state. The BMS compares the total voltage of the battery pack with the high-voltage load bus voltage, and determines whether the pre-charging is completed within the specified pre-charging time; when the pre-charging is completed within the specified pre-charging time, the BMS considers the pre-charging to be successful; when the pre-charging fails within the specified pre-charging time, the power-on process ends and the pre-charging failure related faults are reported.

[0046] When pre-charging is successful, the BMS controls the closing of the main positive contactor and feedback that the main positive contactor is in the closed state. After the main positive contactor is closed, the BMS controls the pre-charging contactor to open and sends the discharge / charge permission command and high-voltage accessory operation enable, and the high-voltage system starts to work. In driving mode (key power on), the VCU lights up the "OK / Ready" light after judging the high-voltage contactor status, vehicle mode status, vehicle fault status and other signals.

[0047] Figure 2 This is a flow chart of powering off a vehicle high voltage system provided in an embodiment of the present application.

[0048] For example, Figure 2 As shown, for a vehicle, the specific process of powering off the high-voltage system is as follows:

[0049] BCM determines whether the user has a high-voltage power-off request based on key signals, remote power-off commands, etc. BMS determines whether to execute the high-voltage power-off process based on vehicle mode, vehicle fault status, and charging end status. When it is determined that there is no high-voltage demand or the vehicle has a serious fault, BMS determines to execute the high-voltage power-off process.

[0050] Specifically, the BMS needs to turn off the high-voltage system working enable before disconnecting the high-voltage contactor; the BMS controls the main positive and main negative contactors to disconnect and cut off the high-voltage circuit. In order to determine whether the high-voltage contactor is damaged and prevent the high-voltage contactor from causing harm to the high-voltage circuit after adhesion, the BMS determines whether the main positive and main negative contactors are disconnected normally by judging the voltage of each detection point of the high-voltage acquisition module during the high-voltage power-off process.

[0051] The BMS issues an active discharge command, and the motor controller controls the inverter to unload the high voltage on the load side. When the voltage on the high-voltage load side is lower than the safety voltage threshold, the active discharge is determined to be complete. The main positive and main negative contactor adhesion detection is performed simultaneously with the active discharge. If the active discharge fails or the main positive and main negative contactors are adhered, the fault is recorded and stored, and the power-off process ends. If the active discharge is successful and the contactor is not adhered (disconnection is normal), the BMS determines that the high-voltage power-off is completed, and requests the control to disconnect the high-voltage component power supply signal and the CAN network to sleep.

[0052] After introducing the power-on and power-off processes of the high-voltage system, the application scenarios of the embodiments of the present application are introduced below.

[0053] At present, for new energy vehicles, the vehicle is generally powered by the power battery in the vehicle when the vehicle is at low speed or stationary. When the vehicle is equipped with a one-button start system, the user can control the vehicle's power on and off by pressing the switch of the one-button start system.

[0054] In one driving scenario, when the user triggers the vehicle to power on by clicking the one-button start system, the power battery supplies power to the entire vehicle and drives the vehicle. Traditional internal combustion engine vehicles drive the vehicle by burning fuel in the engine, and the engine will produce obvious noise and vibration when driving the vehicle. When the power battery in new energy vehicles drives the vehicle, the noise inside the vehicle is significantly reduced due to the lack of engine operation. Because the sound inside the vehicle is too low when the power battery drives the vehicle, the user may not realize that the vehicle is still powered on when getting off the vehicle, and may forget to perform the power-off operation by clicking the one-button start system switch again, causing the vehicle to remain powered after the user leaves the vehicle.

[0055] After the user leaves the vehicle, if the vehicle is in a powered state for a long time, the main consequences are: first, the power battery may be completely discharged, and in severe cases it may even cause irreversible damage to the power battery, shortening the life of the power battery; second, in certain circumstances (such as accidentally touching the remote control key or one-touch start button), the vehicle may start unexpectedly, posing a safety hazard; third, some electronic components may overheat and cause performance degradation or damage when in continuous working condition.

[0056] Based on this, an embodiment of the present application provides a method for controlling the power on and off of a vehicle. This method does not require the user to manually power on and off through a one-button start system, providing the user with an intelligent way to power on and off, avoiding the problem of forgetting to power on and off caused by manual power on and off, and improving the user's power on and off experience.

[0057] Below first pass Figure 3 An application scenario of controlling the power on and off of a vehicle provided in an embodiment of the present application is introduced.

[0058] Figure 3 It is a schematic diagram of a scenario for controlling the power on and off of a vehicle provided in an embodiment of the present application.

[0059] For example, Figure 3 As shown, an embodiment of the present application provides a method for controlling the power on and off of a vehicle. When the user does not need to manually control the power on and off of the vehicle through a one-button start system, specifically, vehicle 301 detects the position of a target key corresponding to vehicle 301 to determine whether it is necessary to automatically execute the power on and off process of the high-voltage system.

[0060] Optionally, the target key includes a traditional smart key (ie, remote control key) 302 and a digital key 303 .

[0061] Optionally, according to different communication modes, the communication mode between the digital key 303 and the vehicle 101 can be divided into near field communication (NFC), ultra wide band (UWB) communication and Bluetooth low energy (BLE) communication. Correspondingly, the digital key 303 can be an NFC key corresponding to the NFC communication mode, a UWB key corresponding to the UWB communication mode, and a BLE key corresponding to the BLE communication mode.

[0062] Optionally, the types of electronic devices integrated with the digital key 303 include, but are not limited to, various smart devices such as smart phones, smart wearable devices, and smart tablets, which are not limited in the embodiments of the present application.

[0063] Specifically, when the vehicle 301 identifies the position of the target key, the corresponding communication signal strength is different due to the different distances between the target key and the vehicle 301. Based on this, in the embodiment of the present application, different communication areas are pre-set according to the communication distance between the vehicle 301 and the target key, with the vehicle 301 as the center. Different communication areas correspond to different communication signal strengths. The closer the distance between the target key and the vehicle 301, the better the communication quality or the greater the communication strength between the target key and the vehicle 301.

[0064] Different power-on and power-off conditions are preset for different communication areas. When the target key is in a certain communication area, the vehicle 301 automatically determines whether the current vehicle 301 meets the power-on and power-off conditions corresponding to the communication area. If the power-on conditions are met, the power-on process is automatically executed; if the power-off conditions are met, the power-off process is automatically executed.

[0065] The above process of controlling the power on and off of the vehicle's high-voltage system mainly depends on the various modules in the vehicle. The functions of each module are introduced below.

[0066] Figure 4 It is a structural schematic diagram of a system for controlling vehicle power on and off provided in an embodiment of the present application.

[0067] For example, Figure 4 As shown, a system 400 for controlling the power on and off of a vehicle provided in an embodiment of the present application can be divided into the following modules according to the different functions of each module: a central control module 401, a low-frequency communication module 402, a high-frequency communication module 403 and a target key 404. Among them, the central control module 401 can be regarded as any electronic control unit (Electronic Control Unit) in the vehicle.

[0068] In a possible implementation, the low-frequency communication module 402 includes a low-frequency transmission driver chip and a vehicle-mounted low-frequency antenna. The high-frequency communication module 403 includes a high-frequency transmission driver chip and a vehicle-mounted high-frequency antenna.

[0069] The central control module 401 can drive the vehicle-mounted low-frequency antenna to generate a low-frequency signal of 125KHz through a low-frequency transmission driver chip, or drive the vehicle-mounted high-frequency antenna to generate a high-frequency signal of 443.93MHz or 315MHz through a high-frequency receiving chip. Among them, the low-frequency signal is mainly used to help the vehicle determine the location of the target key 404. The high-frequency signal is mainly used to send encrypted identity authentication information between the vehicle and the target key 404, and execute corresponding control instructions.

[0070] When the target key 404 is a remote control key, the user can carry the remote control key to achieve both passive unlocking and active unlocking. When the user unlocks the vehicle passively using the remote control key, the central control module 401 can first find the location of the remote control key through a low-frequency signal. When the remote control key is detected, the remote control key will be awakened. Here, awakening refers to the central control module 401 activating the remote control key in a dormant state through a low-frequency signal transmitted by a low-frequency antenna, so that it is ready to communicate with the vehicle. Further, the remote control key communicates with the vehicle through a high-frequency signal to control the automatic unlocking of the vehicle. When the user unlocks the vehicle actively using the remote control key, the target key 404 can directly communicate with the vehicle through a high-frequency signal to control the automatic unlocking of the vehicle.

[0071] When the target key 404 is a digital key, no matter which communication method corresponds to the communication signal, in general, the central control module 401 communicates with the digital key through high-frequency signals. The reason is that the smart device corresponding to the digital key is already in a normally open state and can continuously receive signals from the central control module 401. For example, when the digital key is a Bluetooth key, the smart device can always be in monitoring mode, waiting for the connection request sent by the central control module 401. Therefore, no matter whether the digital key unlocks the vehicle actively or passively, the digital key does not need to be awakened by a low-frequency signal, and can directly communicate with the vehicle through a high-frequency signal.

[0072] The above describes the process of unlocking a vehicle using different types of target keys. Based on the composition of the system 400, the interaction process of each module when controlling the power on and off of the vehicle is as follows:

[0073] Regardless of whether the target key 404 is a remote control key or a digital key, when the vehicle is in a locked state, the user carries the target key 404 outside the vehicle and triggers the vehicle unlocking through any unlocking method, and the vehicle starts the search process for the target key 404.

[0074] The central control module 401 determines whether the unlocked vehicle meets the high-voltage power-on condition based on the communication area where the searched target key 404 is located and the power-on condition corresponding to the communication area. When the vehicle meets the high-voltage power-on condition, the central control module 401 automatically controls the vehicle to perform the high-voltage power-on process. On the contrary, when the vehicle does not meet the high-voltage power-on condition, the central control module 401 controls the vehicle not to perform the high-voltage power-on process.

[0075] When the vehicle is powered on, the central control module 401 can also determine whether the vehicle meets the high-voltage power-off condition in combination with the position of the target key 404 and the operating state of the vehicle. When the vehicle meets the high-voltage power-off condition, the central control module 401 automatically controls the vehicle to perform the high-voltage power-off process. On the contrary, when the vehicle does not meet the high-voltage power-off condition, the central control module 401 controls the vehicle not to perform the high-voltage power-off process.

[0076] The specific implementation process of the method in the embodiment of the present application is introduced below.

[0077] Figure 5 This is a schematic flow chart of a method for controlling vehicle power on and off provided in an embodiment of the present application. It should be understood that the method can be applied to any ECU in a vehicle, and the embodiment of the present application does not limit the execution subject of the method.

[0078] For example, Figure 5 As shown, the method 500 includes:

[0079] 501, when the vehicle is in an unlocked state, determine whether the vehicle meets the preset power-on conditions based on the communication parameters between the target key and the vehicle, or based on the vehicle's state parameters and communication parameters, where the communication parameters are used to indicate the communication quality between the vehicle and the target key, and the state parameters are used to indicate the operating status of vehicle components and / or the receiving status of control signals.

[0080] It should be understood that the method for controlling the power on and off of a vehicle provided in an embodiment of the present application can intelligently control the power on or off of the vehicle according to the position of the target key, without the need for the user to manually control the power on and off of the vehicle's high-voltage system through the one-button start system in the vehicle.

[0081] It should also be understood that the precondition for the vehicle to be powered off is that the vehicle is already powered on, and the precondition for the vehicle to be powered on is that the vehicle is already unlocked. Therefore, when the ECU receives the unlocking command of the vehicle and controls the vehicle to be in the unlocking state, it can further determine whether it is necessary to control the vehicle to be powered on or off.

[0082] The triggering process of the unlock command can be that the user is outside the vehicle by pressing the physical unlock button on the remote control key, and the remote control key generates an unlock command and sends it to the ECU; or the user is outside the vehicle by pressing the virtual physical button in the digital key, and the digital key generates an unlock command and sends it to the ECU; or the user is outside the vehicle, and the ECU actively recognizes the approach of the digital key or remote control key and automatically generates an unlock command. The embodiment of the present application does not limit the unlocking method of the vehicle.

[0083] In response to the unlocking instruction, the ECU can switch the locking state of the vehicle from the locked state to the unlocked state. When the vehicle is in the unlocked state, the ECU can implement the power-on and power-off judgment logic of the embodiment of the present application to search for the location of the target key.

[0084] Specifically, in the embodiment of the present application, when determining whether to control the automatic power on and off of the vehicle, different communication areas are set, and the conditions for automatic power on and off of different communication areas are set accordingly.

[0085] The following first introduces the process of setting different communication areas in the embodiment of the present application.

[0086] It should be understood that, in combination with the above description, when the target key is a remote control key, the target key and the vehicle communicate through high-frequency signals to manually unlock the vehicle, or through a combination of low-frequency signals and high-frequency signals to automatically unlock the vehicle; when the target key is a digital key, the target key and the vehicle communicate through high-frequency signals to automatically or manually unlock the vehicle.

[0087] Regardless of which of the above methods of unlocking the vehicle is used, after unlocking the vehicle, the ECU can further determine the location of the target key.

[0088] It should be noted that although the vehicle can accurately lock the position of the digital key through the corresponding high-frequency signal and related positioning technology when the digital key or remote control key communicates with the vehicle. However, since the high-frequency signal has a long transmission distance and consumes a lot of power, if the target key position is located by high-frequency signal, it may accelerate the consumption of battery power. In addition, when the vehicle needs to be powered on, it means that the distance between the user and the vehicle is relatively close, and the low-frequency signal within this distance range can also detect the target key. Therefore, in order to save battery power, in an embodiment of the present application, after unlocking the vehicle, the ECU can detect the position of the target key through a low-frequency signal.

[0089] Exemplarily, the ECU may roughly determine the location of the target key based on the communication signal strength (Received Signal Strength Indicator, RSSI) during the current communication process.

[0090] Based on this, in order to identify the location of the target key in different unlocking scenarios, technicians can divide the area outside the vehicle into different communication areas in advance according to the communication distance corresponding to the low-frequency signal.

[0091] Figure 6 This is a schematic diagram of a communication area division scenario provided in an embodiment of the present application.

[0092] For example, Figure 6 As shown in the figure, based on the maximum communication distance corresponding to the low-frequency signal, the technicians pre-set different off-vehicle communication areas. Figure 6 The shown are the vehicle exterior area 1, the vehicle exterior area 2, and the vehicle exterior area 3. The RSSI corresponding to the vehicle exterior area 1, the vehicle exterior area 2, and the vehicle exterior area 3 increase in sequence, and the corresponding communication distance decreases in sequence.

[0093] Optionally, the shape of the vehicle external communication area can be Figure 6 The circle shown may also be other geometric shapes such as a rectangle, a triangle, etc. The embodiment of the present application does not limit the shape of the area outside the vehicle.

[0094] Taking the shape of the external communication area as a circle as an example, the center of each circle is the center of mass of the vehicle, such as Figure 6 Point O in .

[0095] Points A, B, and C are points on the boundary lines of the vehicle exterior area 1, vehicle exterior area 2, and vehicle exterior area 3. The vehicle exterior area 1 refers to the annular area formed by a circle with a radius of OA and a circle with a radius of OB; correspondingly, the vehicle exterior area 2 refers to the annular area formed by a circle with a radius of OB and a circle with a radius of OC.

[0096] For the area outside the vehicle 3, if Figure 6 As shown, the vehicle is approximately regarded as a rectangle. The vehicle outer area 3 refers to the area formed by the circle with OC as the radius minus the rectangular area occupied by the vehicle, and the final area is obtained.

[0097] Optionally, OA may be 15m, OB may be 10m, and OC may be 5m, which is not limited in the embodiment of the present application.

[0098] According to the different distances, in the embodiment of the present application, the area outside the vehicle 1 can be called the "welcome area", the area outside the vehicle 2 can be called the "unlocking and power-on area", and the area outside the vehicle 3 can be called the "unlocking and door opening and power-on area".

[0099] As the name implies, the welcome area refers to the area where users are ready to get on the vehicle. Whether the vehicle can be automatically powered on in the welcome area further depends on other factors, which will be described in detail below; the unlock power-on area refers to the area where the vehicle can be automatically powered on as long as the ECU detects that the vehicle is unlocked; the unlock door power-on area refers to the area where the vehicle is automatically powered on when the ECU detects that the vehicle is unlocked and the door is open.

[0100] The power-on and power-off conditions corresponding to some of the above communication areas may involve the operating status of the vehicle itself. For example, the door unlocking power-on area requires the door to be open. Therefore, in addition to obtaining the communication parameters between the target key and the vehicle and determining the location of the target key, the ECU also needs to obtain the vehicle's status parameters. Among them, the communication parameters are used to indicate the communication quality between the vehicle and the target key, and the status parameters are used to indicate the operating status of the vehicle itself.

[0101] Optionally, in the embodiment of the present application, the communication parameter includes RSSI or communication distance. The state parameter includes the door state, gear position and the reception state of the locking command.

[0102] For example, with respect to RSSI, it can be seen from the above description that no matter whether the user unlocks the vehicle through a digital key or a remote control key, during the unlocking process, the target key and the vehicle communicate in the form of wireless signals. Therefore, when receiving the unlocking command, the ECU can calculate the RSSI value of the wireless signal based on the built-in signal processing algorithm, thereby obtaining the RSSI between the vehicle and the target key.

[0103] Optionally, the signal processing algorithm includes sampling, filtering and quantizing the received wireless signal.

[0104] Exemplarily, for the communication distance, after the ECU obtains the RSSI in the aforementioned manner, the current communication distance can be obtained based on a preset corresponding relationship between the RSSI and the communication distance.

[0105] For example, for the door status, the ECU can obtain the binary value of the door status switch through the BCM, thereby obtaining the door status. Specifically, when the binary value of the door status is "0", it means that the door status is closed; when the binary value of the door status is "1", it means that the door status is open.

[0106] Exemplarily, the ECU may obtain the gear position of the vehicle through a gear position controller.

[0107] For example, for the reception status of the locking instruction, when the user triggers the vehicle locking through the digital key or smart key or the locking button in the car, the ECU can receive the locking instruction. Correspondingly, the reception status of the locking instruction is received; on the contrary, when the user does not trigger the vehicle locking through any locking triggering method, the ECU does not receive the locking instruction. Correspondingly, the reception status of the locking instruction is not received.

[0108] Thus, through the above steps, the ECU can obtain the status parameters of the vehicle and the communication parameters between the target key and the vehicle.

[0109] After obtaining different parameters, the ECU can first determine whether the vehicle meets the preset power-on conditions based on the above parameters.

[0110] Based on the different areas provided in the embodiments of the present application, when determining whether the vehicle meets the preset power-on conditions, the ECU can first determine the target area where the current target key is located.

[0111] In a possible implementation, determining whether the vehicle meets a preset power-on condition based on communication parameters between the target key and the vehicle, or based on status parameters and communication parameters of the vehicle, includes:

[0112] Determine a target strength interval according to the communication signal strength; determine a target area where the target key is located according to the target strength interval; or determine a target distance interval according to the communication distance; determine a target area according to the target distance interval;

[0113] According to the target area, or according to the target area and the state parameter, it is determined whether the vehicle meets the preset power-on condition.

[0114] For example, Figure 6As shown, each area outside the vehicle corresponds to a different communication signal strength interval or communication distance interval. Based on this, when the communication parameter is RSSI, the ECU can compare the RSSI with the RSSI intervals corresponding to the outside area 1, the outside area 2, and the outside area 3, respectively, to obtain the target strength interval. Similarly, when the communication parameter is the communication distance, the ECU can compare the communication distance with the communication distance intervals corresponding to the outside area 1, the outside area 2, and the outside area 3, respectively, to obtain the target distance interval.

[0115] Based on the target intensity interval, the correspondence between multiple areas outside the vehicle and multiple RSSI intervals, the ECU can determine the target area; or, based on the target distance interval, the correspondence between multiple areas outside the vehicle and multiple communication distance intervals, the ECU can determine the target area.

[0116] Taking the communication parameter as RSSI as an example, if the target strength interval is the RSSI interval corresponding to the vehicle exterior area 1, the target area is the vehicle exterior area 1.

[0117] After determining the target area, the ECU can combine the target area and status parameters to determine whether the vehicle meets the preset power-on conditions.

[0118] Based on several off-vehicle communication areas, the specific process of determining whether the vehicle meets the preset power-on conditions is also divided into several cases.

[0119] In a possible implementation, the state parameter includes a door state, and determining whether the vehicle meets a preset power-on condition according to the target area, or according to the target area and the state parameter, includes:

[0120] When the target area is the first area outside the vehicle, a distance change trend between the target key and the vehicle within a first preset time period is obtained; when the distance change trend is decreasing, it is determined that the vehicle meets the preset power-on condition; when the distance change trend is increasing or remains unchanged, it is determined that the vehicle does not meet the preset power-on condition;

[0121] When the target area is the second area outside the vehicle, determining that the vehicle meets the preset power-on condition, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the third area outside the vehicle;

[0122] When the target area is the third area outside the vehicle, if the door state changes within the second preset time period, it is determined that the vehicle meets the preset power-on conditions, and the communication signal strength in the third area outside the vehicle is greater than the communication signal strength in the second area outside the vehicle; if the door state does not change within the second preset time period, it is determined that the vehicle does not meet the preset power-on conditions.

[0123] For example, Figure 6As shown, the key areas that can be detected by the low-frequency signal include the vehicle exterior area 1, the vehicle exterior area 2, and the vehicle exterior area 3. Therefore, the determination results of the target area include the following situations:

[0124] The target area is the first area outside the vehicle. Figure 6 The area outside the vehicle 1 is the welcome area. Since this area is the farthest from the vehicle among the three areas, when the target key is in this area, the ECU can further determine the distance change trend between the target key and the vehicle within the first preset time period to determine whether the target key is moving towards the unlocking and powering-on area.

[0125] Optionally, the first preset time length may be 30 seconds, which may be determined based on actual conditions by measuring the time required for a user carrying a target key to move from the welcome area to the unlocking and powering-on area.

[0126] The ECU can continuously detect the RSSI between the current target key and the vehicle within 30 seconds to determine the distance change trend between the target key and the vehicle. When the RSSI value gradually increases, it means that the distance between the target key and the vehicle is getting smaller and smaller, and the distance change trend is decreasing. When the RSSI value gradually decreases, it means that the distance between the target key and the vehicle is getting larger and larger, and the distance change trend is increasing. When the RSSI value does not change, it means that the distance between the target key and the vehicle has not changed, and the distance change trend is unchanged.

[0127] When the distance change trend is decreasing, it means that the target key is moving from the welcome area to the unlocking and powering area (i.e., the vehicle exterior area 2) during this period, and the ECU determines that the vehicle meets the preset power-on conditions. On the contrary, when the distance change trend is increasing or unchanged, the ECU determines that the vehicle does not meet the preset power-on conditions.

[0128] The target area is the second area outside the vehicle. Figure 6 When the target key is in the unlocked power-on zone, in order to give the user a good car experience before getting in the car, the ECU can allow the vehicle to be automatically powered on directly after unlocking. Therefore, the ECU determines that the vehicle meets the preset power-on conditions.

[0129] The target area is the third area outside the vehicle. Figure 6 When the target key is in the unlocking and powering-on area, it means that the distance between the target key and the vehicle is very close. In this case, we can further combine the user's intention to get on the vehicle, that is, judge whether the user opens the door within a certain period of time, to judge whether the vehicle meets the preset power-on conditions.

[0130] Optionally, the second preset duration may be 1 minute.

[0131] When the target key is in the unlocking and door opening power-on zone, the ECU can continuously detect whether the door status changes within the next 1 minute, that is, switching from the closed state to the open state and then switching to the closed state. If the door status changes within 1 minute, it means that the user has boarded the vehicle, and the ECU determines that the vehicle meets the preset power-on conditions. If the door status does not change within 1 minute, that is, it continues to be closed, it means that the user has not boarded the vehicle, and the ECU determines that the vehicle does not meet the preset power-on conditions.

[0132] The communication distance corresponding to the unlock power-on zone is greater than the unlock door power-on zone. When the vehicle is unlocked, if the target key is directly powered on in the unlock power-on zone, when the target key is in the unlock door power-on zone, the user needs to further open the door to power on. The reason is that when the target key is slightly far away from the vehicle, after the vehicle is powered on, even if the vehicle needs to be powered off later, the time interval between the power-on and power-off moments is long, which will not cause frequent power on and off of the vehicle. However, when the target key is very close to the vehicle and directly controls the vehicle to power on, when the vehicle needs to be powered off, the time interval between the power-on and power-off moments may be short, causing frequent power on and off of the vehicle.

[0133] Therefore, through the above process, the ECU can determine whether the vehicle meets the preset power-on conditions when it is unlocked.

[0134] In the above technical solution, after the user unlocks the vehicle outside the vehicle with the target key, in the process of judging whether to control the vehicle to power on, several different areas outside the vehicle are set according to the different communication distances in this application. Each area outside the vehicle corresponds to different power-on and power-off judgment conditions. From then on, no matter which area outside the vehicle the target key is in, the vehicle can flexibly judge whether to automatically power on and off based on the judgment conditions of the area outside the vehicle. The above process sets the power-on conditions in a step-by-step manner according to the distance of the communication, so that the judgment process of power-on is flexible and personalized, and the accuracy of power-on is improved.

[0135] 502 , when the vehicle meets the preset power-on condition, determine whether the vehicle meets the preset power-off condition according to the state parameter and the communication parameter.

[0136] When the vehicle meets the preset power-on conditions, the ECU can control the vehicle to execute the high-voltage system power-on process. On the contrary, when the vehicle does not meet the preset power-on conditions, the ECU controls the vehicle not to perform the high-voltage system power-on process temporarily.

[0137] When the vehicle meets the preset power-on conditions, the ECU controls the vehicle to execute the power-on process. The ECU can also determine whether the vehicle meets the preset power-off conditions based on the vehicle's status parameters and communication parameters, which is the same as the principle of determining whether to power on automatically.

[0138] In a possible implementation, determining whether the vehicle meets a preset power-off condition based on the state parameter and the communication parameter includes:

[0139] Determine whether the vehicle meets the preset power-off conditions based on the target area and status parameters.

[0140] The judgment logic for whether the vehicle meets the preset power-off condition is the same as the judgment logic for whether the vehicle meets the preset power-on condition. It can also be judged by the area where the target key is located combined with the vehicle's status parameters.

[0141] There are two specific judgment scenarios. The first is to judge whether the vehicle needs to be powered off before the user gets on the vehicle when the vehicle is powered on. The second is to judge whether the vehicle needs to be powered off after the user gets on the vehicle when the vehicle is powered on.

[0142] In a possible implementation, the state parameters include the receiving state of the gear position and the locking command, and determining whether the vehicle meets the preset power-off condition according to the target area and the state parameters includes:

[0143] In the case where the target area is the area outside the vehicle, if the receiving state of the locking command is received, it is determined that the vehicle meets the preset power-off condition; if the receiving state of the locking command is not received, it is determined that the vehicle does not meet the preset power-off condition;

[0144] When the target area is the vehicle interior area, if the reception status of the locking command is not received, it is determined that the vehicle does not meet the preset power-off conditions; if the reception status of the locking command is received, it is determined whether the vehicle meets the preset power-off conditions according to the gear position.

[0145] When the target area is outside the vehicle, it means that the user is not in the vehicle after the vehicle is powered on. To avoid power consumption caused by the vehicle being powered on all the time, the ECU needs to determine whether to control the vehicle to be powered off based on the vehicle's operating status.

[0146] Specifically, when the target area is any of the first vehicle exterior area, the second vehicle exterior area, or the third vehicle exterior area, whether it is passively triggered or actively triggered, as long as the ECU receives a locking command, the ECU can directly control the vehicle to power off, that is, determine that the vehicle meets the preset power-off conditions. On the contrary, when the ECU does not receive a locking command, it means that the user has not currently triggered the vehicle to lock, or the vehicle does not meet the automatic locking conditions, and the ECU controls the vehicle not to power off.

[0147] The following are steps for generating several different locking instructions provided in the embodiments of the present application.

[0148] In a possible implementation, the steps of triggering the locking instruction include:

[0149] When the target area is the first area outside the vehicle or the second area outside the vehicle, if the door state changes within the third preset time period, a locking instruction is generated, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle;

[0150] When the target area is the third area outside the vehicle, if the door state changes within the fourth preset time period, a locking instruction is generated, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle;

[0151] When the target area is the first vehicle exterior area, the second vehicle exterior area, the third vehicle exterior area or the vehicle interior area, a locking command sent by the target key is received.

[0152] In one case, when the target key is in the welcome area or unlocking power-on area, since the power-on conditions corresponding to these two areas outside the vehicle are direct power-on. After the vehicle is powered on, if the ECU continuously detects that the door status has not changed within a period of time (the third preset time), that is, the user has not opened the door to get in the vehicle, the ECU determines to control the vehicle to lock and power off at the same time. Therefore, in this case, the ECU can generate a locking command and determine that the vehicle needs to be powered off.

[0153] Optionally, the third preset time length may be 1 minute.

[0154] In the second case, when the target key is in the unlocking and door opening power-on area, the corresponding power-on condition of this area outside the vehicle is that the door status changes from closed to open and then to closed. After the vehicle is powered on, if the ECU continuously detects a change in the door status within a period of time (the fourth preset time), that is, the user opens the door again and gets out of the vehicle, the ECU determines to control the vehicle to lock and power off at the same time. Therefore, in this case, the ECU can generate a locking instruction and determine that the vehicle needs to be powered off.

[0155] Optionally, the fourth preset time length may be 1 minute.

[0156] In the third case, when the target key is in the unlocking and powering-on area, the welcome area, the unlocking and door opening and powering-on area or the interior area, regardless of the current vehicle operating status, the ECU can receive the manual locking command triggered by the user based on the target key.

[0157] When the target area is the outside area (any one of the outside area 1, outside area 2 or outside area 3), the user is not in the vehicle. Therefore, when the ECU receives the locking command, the ECU determines that the vehicle meets the preset power-off condition. On the contrary, when the ECU does not receive the locking command, the ECU determines that the vehicle does not meet the preset power-off condition.

[0158] On the contrary, when the target key is in the vehicle, it means that the user is in the vehicle. In this case, if the ECU determines whether the vehicle is powered off, it needs to combine the gear position of the vehicle and the reception status of the locking command.

[0159] When the ECU does not receive the locking command, it means that the user has not yet finished using the vehicle. In this case, the ECU determines that the vehicle does not meet the preset power-off conditions.

[0160] When the ECU receives a locking command, in order to ensure the safety of the vehicle during power-off, the ECU needs to further combine the gear position to determine whether the vehicle meets the preset power-off conditions.

[0161] In a possible implementation, determining whether the vehicle meets a preset power-off condition according to the gear position includes:

[0162] When the gear position is not a preset gear position, determining that the vehicle does not meet the preset power-off condition;

[0163] When the gear position is the preset gear position, determine whether the reception status of the locking command is detected again as received within the fifth preset time length; when the reception status of the locking command is detected again as received within the fifth preset time length, determine that the vehicle meets the preset power-off conditions; when the reception status of the locking command is not detected again as received within the fifth preset time length, determine that the vehicle does not meet the preset power-off conditions.

[0164] Optionally, the preset gear position is parking (Parking, P).

[0165] When the target key is in the vehicle, if the user triggers the locking command through any locking triggering method, and the vehicle is not in P gear at this time, even if the user triggers the locking command, the ECU will not allow the vehicle to be locked or powered off.

[0166] When the target key is in the door, if the user triggers the locking command, the vehicle is in P gear at this time, and the vehicle can enter the locked state first. When the vehicle is locked, the user may still have a high-voltage power demand. In order to prevent the vehicle from being powered off by mistake, the ECU can also determine whether to further control the vehicle to automatically power off based on whether the locking command is received again within the next period of time.

[0167] Optionally, the fifth preset duration is 3s.

[0168] For example, when the user presses the lock button twice again within the next 3 seconds, that is, the ECU receives two lock commands in succession within the next two 3 seconds, it means that the user actively wants to power off rather than accidentally touches the button. In this case, the ECU controls the vehicle to perform the power-off operation.

[0169] If the user continues to click the lock button within the next 3 seconds, that is, the ECU receives the lock command continuously within the next two 3 seconds, it means that the user actively wants to power off rather than accidentally touching it. In this case, the ECU controls the vehicle to perform the power-off operation.

[0170] In the above technical solution, when the vehicle is powered on, the target key is in the vehicle. After the user triggers the locking command in the vehicle, this application allows the vehicle to be locked and powered off only when the vehicle gear is in the parking gear, which can ensure the safety of the vehicle during the power-off process. Specifically, in the parking gear, after the user triggers the locking command, the vehicle can first execute the locking command, and further identify whether the locking command can still be received to identify whether the current power-off process is the user's subjective intention, so that the power-off process is executed only when the user confirms to power off, to prevent the vehicle from being accidentally powered off when the user is in the vehicle.

[0171] Therefore, through the above steps, the ECU can determine whether the vehicle meets the preset power-off conditions.

[0172] 503 , when the vehicle meets the preset power-off condition, control the vehicle to power off.

[0173] When the ECU determines that the vehicle meets the preset power-off conditions based on the above judgment process, it can control the vehicle to execute the power-off process.

[0174] In addition, in addition to the above-mentioned ECU automatically executing the power-on or power-off process by detecting the target key, in the embodiment of the present application, the ECU can also manually trigger the vehicle to power on or off according to the traditional one-button start switch.

[0175] In a possible implementation manner, the method further includes:

[0176] When the target key is in the vehicle, in response to a triggering operation of a power-on control in the vehicle, controlling the vehicle to be powered on;

[0177] In the case where the target key is in the vehicle, in response to a trigger operation on the in-vehicle power-off control, the vehicle is controlled to be powered off.

[0178] When the target key is in the car, it means that the vehicle is unlocked and the user is in the car. In this case, regardless of whether the vehicle is currently powered on, the user can further control the vehicle to power on by pressing the on button of the one-touch start switch in the car (i.e., the power-on control in the car). On the contrary, when the target key is in the car, it means that the vehicle is unlocked and the user is in the car. In this case, regardless of whether the vehicle is currently powered on, the user can further control the vehicle to power off by pressing the off button of the one-touch start switch in the car (i.e., the power-off control in the car).

[0179] For example, the target key is in the vehicle, and the user has previously triggered the vehicle to lock and power off. In this case, the user can manually control the vehicle to power on by using the one-button start system switch.

[0180] In summary, in order to improve the user experience during the process of powering on and off the vehicle, the present application proposes a method for controlling the automatic powering on and off of the vehicle. During the implementation of this method, the vehicle can automatically complete the powering on and off by automatically detecting the communication parameters between the target key and the vehicle and the operating status of the vehicle. The above process does not require manual triggering by the user. Compared with the one-button power-on and power-off method, it is more intelligent and convenient, and improves the convenience of powering on and off the vehicle. In addition, since the user may forget to power off during the one-button power-on and power-off process, the method of the present application can further avoid this problem and enhance the safety of the vehicle.

[0181] Figure 7 It is a structural schematic diagram of a device for controlling vehicle power on and off provided in an embodiment of the present application.

[0182] For example, Figure 7 As shown, the device 700 includes:

[0183] A first condition judgment module 701 is used to determine whether the vehicle meets a preset power-on condition according to a communication parameter between the target key and the vehicle, or according to a state parameter of the vehicle and the communication parameter, when the vehicle is in an unlocked state, wherein the communication parameter is used to indicate the communication quality between the vehicle and the target key, and the state parameter is used to indicate the operating state of the vehicle component and / or the receiving state of the control signal;

[0184] A second condition judgment module 702 is used to determine whether the vehicle meets the preset power-off condition according to the state parameter and the communication parameter when the vehicle meets the preset power-on condition;

[0185] The operation control module 703 is used to control the vehicle to power off when the vehicle meets the preset power-off condition.

[0186] In one possible implementation, the communication parameter includes communication signal strength or communication distance, and the first condition judgment module 701 is specifically used to: determine the target strength interval according to the communication signal strength; determine the target area where the target key is located according to the target strength interval; or, determine the target distance interval according to the communication distance; determine the target area according to the target distance interval; determine whether the vehicle meets the preset power-on condition according to the target area, or, according to the target area and the state parameter; and, the second condition judgment module is specifically used to: determine whether the vehicle meets the preset power-off condition according to the target area and the state parameter.

[0187] In one possible implementation, the state parameter includes a door state, and the first condition judgment module 701 is further used to: when the target area is a first area outside the vehicle, obtain a distance change trend between the target key and the vehicle within a first preset time period; when the distance change trend is decreasing, determine that the vehicle meets the preset power-on condition; when the distance change trend is increasing or remains unchanged, determine that the vehicle does not meet the preset power-on condition; when the target area is a second area outside the vehicle, determine that the vehicle meets the preset power-on condition, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; when the target area is a third area outside the vehicle, if the door state changes within a second preset time period, determine that the vehicle meets the preset power-on condition, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; if the door state does not change within the second preset time period, determine that the vehicle does not meet the preset power-on condition.

[0188] In one possible implementation, the state parameter includes the gear position and the receiving state of the locking command, and the second condition judgment module 702 is also used for: when the target area is the area outside the vehicle, if the receiving state of the locking command is received, determining that the vehicle meets the preset power-off condition; if the receiving state of the locking command is not received, determining that the vehicle does not meet the preset power-off condition; when the target area is the area inside the vehicle, if the receiving state of the locking command is not received, determining that the vehicle does not meet the preset power-off condition; if the receiving state of the locking command is received, determining whether the vehicle meets the preset power-off condition based on the gear position.

[0189] In one possible implementation, the triggering step of the locking command includes: when the target area is the first area outside the vehicle or the second area outside the vehicle, if the door state changes within a third preset time period, the locking command is generated, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; when the target area is the third area outside the vehicle, if the door state changes within a fourth preset time period, the locking command is generated, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; when the target area is the first area outside the vehicle, the second area outside the vehicle, the third area outside the vehicle or the area inside the vehicle, the locking command sent by the target key is received.

[0190] In one possible implementation, the second condition judgment module 702 is also used to: when the gear position is not the preset gear position, determine that the vehicle does not meet the preset power-off condition; when the gear position is the preset gear position, determine whether the reception status of the locking instruction is detected again as received within the fifth preset time length; when the reception status of the locking instruction is detected again as received within the fifth preset time length, determine that the vehicle meets the preset power-off condition; when the reception status of the locking instruction is not detected again as received within the fifth preset time length, determine that the vehicle does not meet the preset power-off condition.

[0191] Optionally, the device also includes: a control module, which is used to control the vehicle to power on in response to a triggering operation on a power-on control in the vehicle when the target key is in the vehicle; and to control the vehicle to power off in response to a triggering operation on a power-off control in the vehicle when the target key is in the vehicle.

[0192] Figure 8 It is a structural schematic diagram of a vehicle provided in an embodiment of the present application.

[0193] For example, Figure 8 As shown, the vehicle 301 includes: a memory 801 and a processor 802, wherein the memory 801 stores an executable program code 8011, and the processor 802 is used to call and execute the executable program code 8011 to perform a method for controlling the power on and off of the vehicle.

[0194] In addition, an embodiment of the present application also protects a device, which may include a memory and a processor, wherein the memory stores an executable program code, and the processor is used to call and execute the executable program code to execute a method for controlling vehicle power on and off provided in an embodiment of the present application.

[0195] In this embodiment, the functional modules of the device can be divided according to the above method example. For example, each functional module can be corresponded, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0196] In the case of dividing each functional module according to each function, the device may also include a first condition judgment module, a second condition judgment module, and an operation control module, etc. It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0197] It should be understood that the device provided in this embodiment is used to execute the above-mentioned method of controlling the power on and off of a vehicle, and thus can achieve the same effect as the above-mentioned implementation method.

[0198] In the case of an integrated unit, the device may include a processing module and a storage module. When the device is applied to a vehicle, the processing module may be used to control and manage the actions of the vehicle. The storage module may be used to support the vehicle in executing relevant program codes, etc.

[0199] The processing module may be a processor or a controller, which may implement or execute various exemplary logic blocks, modules and circuits shown in conjunction with the disclosure of the present application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module may be a memory.

[0200] In addition, the device provided in the embodiments of the present application may specifically be a chip, component or module, and the chip may include a connected processor and memory; wherein the memory is used to store instructions, and when the processor calls and executes the instructions, the chip can execute a method for controlling the power on and off of a vehicle provided in the above embodiments.

[0201] This embodiment also provides a computer-readable storage medium, in which a computer program code is stored. When the computer program code is executed on a computer, the computer executes the above-mentioned related method steps to implement a method for controlling vehicle power on and off provided in the above embodiment.

[0202] This embodiment also provides a computer program product. When the computer program product is run on a computer, the computer is caused to execute the above-mentioned related steps to implement a method for controlling vehicle power on and off provided in the above embodiment.

[0203] Among them, the device, computer-readable storage medium, computer program product or chip provided in this embodiment is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be repeated here.

[0204] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0205] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0206] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for controlling vehicle power on and off, characterized in that: The method comprises: When the vehicle is in an unlocked state, determining whether the vehicle meets a preset power-on condition according to a communication parameter between the target key and the vehicle, or according to a state parameter of the vehicle and the communication parameter, wherein the communication parameter is used to indicate the communication quality between the vehicle and the target key, and the state parameter is used to indicate the operating state of the vehicle component and / or the receiving state of the control signal; In the case where the vehicle meets the preset power-on condition, determining whether the vehicle meets the preset power-off condition according to the state parameter and the communication parameter; When the vehicle meets the preset power-off condition, the vehicle is controlled to be powered off.

2. The method according to claim 1, characterized in that The communication parameter includes a communication signal strength or a communication distance, and the determining whether the vehicle meets a preset power-on condition based on the communication parameter between the target key and the vehicle, or based on the state parameter of the vehicle and the communication parameter, includes: Determine a target strength interval according to the communication signal strength; determine a target area where the target key is located according to the target strength interval; or determine a target distance interval according to the communication distance; determine the target area according to the target distance interval; Determining whether the vehicle meets the preset power-on condition according to the target area, or according to the target area and the state parameter; And, determining whether the vehicle meets a preset power-off condition according to the state parameter and the communication parameter includes: It is determined whether the vehicle meets the preset power-off condition according to the target area and the state parameter.

3. The method according to claim 2, characterized in that The state parameter includes a door state, and determining whether the vehicle meets the preset power-on condition according to the target area, or according to the target area and the state parameter, includes: When the target area is the first area outside the vehicle, obtaining a distance change trend between the target key and the vehicle within a first preset time period; when the distance change trend is decreasing, determining that the vehicle meets the preset power-on condition; when the distance change trend is increasing or remains unchanged, determining that the vehicle does not meet the preset power-on condition; When the target area is a second area outside the vehicle, determining that the vehicle meets the preset power-on condition, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; When the target area is the third area outside the vehicle, if the door state changes within the second preset time period, it is determined that the vehicle meets the preset power-on condition, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; if the door state does not change within the second preset time period, it is determined that the vehicle does not meet the preset power-on condition.

4. The method according to claim 2, characterized in that: The state parameter includes a receiving state of a gear position and a locking instruction, and determining whether the vehicle meets the preset power-off condition according to the target area and the state parameter includes: In the case where the target area is the area outside the vehicle, if the reception status of the locking command is received, it is determined that the vehicle meets the preset power-off condition; if the reception status of the locking command is not received, it is determined that the vehicle does not meet the preset power-off condition; When the target area is the interior area of ​​the vehicle, if the reception status of the locking command is not received, it is determined that the vehicle does not meet the preset power-off condition; if the reception status of the locking command is received, it is determined whether the vehicle meets the preset power-off condition according to the gear position.

5. The method according to claim 4, characterized in that The triggering step of the locking instruction includes: In the case where the target area is the first area outside the vehicle or the second area outside the vehicle, if the door state changes within a third preset time period, the locking instruction is generated, and the communication signal strength of the second area outside the vehicle is greater than the communication signal strength of the first area outside the vehicle; In the case where the target area is the third area outside the vehicle, if the door state changes within a fourth preset time period, the locking instruction is generated, and the communication signal strength of the third area outside the vehicle is greater than the communication signal strength of the second area outside the vehicle; When the target area is the first vehicle exterior area, the second vehicle exterior area, the third vehicle exterior area or the vehicle interior area, the locking instruction sent by the target key is received.

6. The method according to claim 4, characterized in that The determining, according to the gear position, whether the vehicle meets the preset power-off condition includes: When the gear position is not a preset gear position, determining that the vehicle does not meet the preset power-off condition; When the gear position is the preset gear position, it is determined whether the reception status of the locking instruction is detected again as received within the fifth preset time length; when the reception status of the locking instruction is detected again as received within the fifth preset time length, it is determined that the vehicle meets the preset power-off condition; when the reception status of the locking instruction is not detected again as received within the fifth preset time length, it is determined that the vehicle does not meet the preset power-off condition.

7. The method according to claim 1, characterized in that The method further comprises: When the target key is in the vehicle, in response to a triggering operation of a power-on control in the vehicle, controlling the vehicle to be powered on; In a case where the target key is in the vehicle, in response to a triggering operation of a power-off control in the vehicle, the vehicle is controlled to be powered off.

8. A device for controlling the power on and off of a vehicle, characterized in that: The device comprises: a first condition judgment module, configured to determine, when the vehicle is in an unlocked state, whether the vehicle satisfies a preset power-on condition according to a communication parameter between a target key and the vehicle, or according to a state parameter of the vehicle and the communication parameter, wherein the communication parameter is used to indicate a communication quality between the vehicle and the target key, and the state parameter is used to indicate an operating state of the vehicle and / or a receiving state of a control signal; A second condition judgment module, configured to determine whether the vehicle meets a preset power-off condition according to the state parameter and the communication parameter when the vehicle meets the preset power-on condition; The operation control module is used to control the vehicle to power off when the vehicle meets the preset power-off condition.

9. A vehicle, characterized in that: The vehicle comprises: A memory for storing executable program codes; A processor, configured to call and run the executable program code from the memory, so that the vehicle executes the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 1 to 7 is implemented.

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