Vehicle power supply mode automatic switching method and automobile

Abstract

The application discloses a whole vehicle power mode automatic switching method and an automobile. The method comprises the following steps: acquiring a current whole vehicle power mode of the automobile and receiving area equipment signals sent by area controllers in real time; acquiring an associated power mode corresponding to the whole vehicle power mode; determining a target power mode of the automobile from the associated power mode according to the area equipment signals; and controlling the area controllers to switch the automobile to the target power mode. The application improves the efficiency of whole vehicle power mode switching and improves the user's driving experience.

Description

Technical Field

[0001] This invention relates to the field of automotive power mode management technology, and more particularly to a method for automatic switching of vehicle power modes and an automobile. Background Technology

[0002] As the automotive industry gradually develops, while ensuring the safety performance of automobiles, users are also paying more and more attention to the driving experience. Therefore, the ease of operation and comfort of automobiles have become important performance indicators.

[0003] In the existing technology, the vehicle's power mode needs to be switched by manually pressing the start switch; however, the start switch is designed to be hidden in the vehicle, so the above method of switching the vehicle's power mode causes great inconvenience to users, the switching efficiency between vehicle power modes is low, and thus the user's driving experience is poor. Summary of the Invention

[0004] This invention provides a method for automatic switching of vehicle power modes and a vehicle to solve the problems of low switching efficiency between vehicle power modes and poor user experience.

[0005] A method for automatic switching of vehicle power modes includes:

[0006] Obtain the current vehicle power mode and receive regional device signals sent by each regional controller in real time;

[0007] Obtain the associated power mode corresponding to the vehicle power mode, and determine the target power mode of the vehicle from the associated power mode based on the signals of each of the area devices.

[0008] Control each of the aforementioned area controllers to switch the vehicle to the target power mode.

[0009] An automobile includes at least one area controller and a domain controller module for performing the above-described automatic switching method for vehicle power modes; all the area controllers are communicatively connected to the domain controller module.

[0010] The above-mentioned automatic vehicle power mode switching method and vehicle, the method determines whether the current vehicle power mode needs to be switched by the regional device signal sent by the regional controller, and when the mode switch is required, the target power mode can be determined directly according to the regional device signal sent by the regional controller, and then the vehicle can be switched to the target power mode by controlling each regional controller, thereby improving the efficiency of vehicle power mode switching and improving the user's driving experience. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of an application environment for the automatic switching method of vehicle power mode in one embodiment of the present invention;

[0013] Figure 2 This is a flowchart of a method for automatic switching of vehicle power modes in one embodiment of the present invention. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] In one embodiment, such as Figure 2 As shown, a method for automatic switching of vehicle power modes is provided, which can be applied to applications such as... Figure 1 The domain controller module shown includes the following steps:

[0016] S10: Obtain the current vehicle power mode and receive regional device signals sent by each regional controller in real time.

[0017] Understandably, the vehicle in this embodiment can be a pure electric vehicle, a hybrid electric vehicle, or a pure gasoline-powered vehicle. The vehicle power mode is used to indicate the operating mode of each electrical system in the vehicle. In this invention, the vehicle power mode is specifically divided into vehicle sleep mode, vehicle standby mode, in-vehicle living mode, waiting-to-drive mode, and driving mode. Area controllers correspond to different control areas within the vehicle. For example, area controllers can be divided into a left front area controller controlling the left front area of ​​the vehicle (e.g., the left front door, driver's seat, etc.), a right front area controller controlling the right front area of ​​the vehicle (e.g., the right front door, passenger seat, etc.), a left rear area controller controlling the left rear area of ​​the vehicle (e.g., the left rear door), a right rear area controller controlling the right rear area of ​​the vehicle (e.g., the right rear door), and a central area controller controlling the central area of ​​the vehicle. Area device signals refer to signals generated by the area controller when it detects changes in the vehicle's equipment within its controlled area. For example, assuming the left front area controller detects that the left front door is opened, it will generate a signal indicating that the driver's door is open. In this invention, the area device signals include the first switching signal, second switching signal, third switching signal, fourth switching signal, fifth switching signal, sixth switching signal, seventh switching signal, eighth switching signal, ninth switching signal, tenth switching signal, and eleventh switching signal, as described below. Furthermore, when the vehicle is first powered on, the vehicle's current power mode is the vehicle standby mode.

[0018] Furthermore, this invention redefines the vehicle power supply modes for various types of automobiles, making each vehicle power supply mode more service-oriented and the functional logic design of each vehicle power supply mode clearer and more concise, reducing the complexity of the functional logic design. The specific definitions are as follows:

[0019] In vehicle hibernation mode, all electrical systems in the car enter hibernation or minimum power consumption operation state, the car network is in hibernation state, and high voltage is turned off;

[0020] In the vehicle standby mode, all electrical systems in the car enter an executable standby mode, the car network is in working mode and the high voltage is turned on;

[0021] In in-car living mode, all electrical systems in the car, except for the driving electrical system, are either active or turned on. When the car is a pure electric vehicle or a hybrid vehicle, the high-voltage circuit is activated. When the car is a pure gasoline vehicle, the engine is turned off.

[0022] In standby driving mode, all electrical systems in the car are either active or turned on; when the car is a pure electric vehicle or a hybrid vehicle, the high-voltage electricity is turned on; when the car is a hybrid vehicle, the engine may be running; when the car is a pure gasoline vehicle, the engine is either running or has failed to start.

[0023] In driving mode, all electrical systems in the car are activated or turned on, and traction output is ready to be used. When the car is a pure electric vehicle or a hybrid vehicle, the high voltage is turned on. When the car is a hybrid vehicle, the engine may be running. When the car is a pure gasoline vehicle, the engine is already running.

[0024] S20: Obtain the associated power mode corresponding to the vehicle power mode, and determine the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices.

[0025] S30: Control each of the said area controllers to switch the vehicle to the target power mode.

[0026] Understandably, associated power mode refers to a power mode that can be switched with the vehicle power mode. Further, the associated power mode corresponding to the vehicle sleep mode is the vehicle standby mode; the associated power mode corresponding to the vehicle standby mode is the vehicle sleep mode, in-vehicle living mode, and driving mode; the associated power mode corresponding to the in-vehicle living mode is the vehicle standby mode and driving mode; and the associated power mode corresponding to the driving mode is the vehicle standby mode, in-vehicle living mode, and driving mode. Furthermore, in this embodiment, to facilitate communication between the domain controller module and the area controller, a switching signal value is set for each different target power mode. This switching signal value is used to indicate whether each electrical system in the vehicle is automatically turned on. For example, in this embodiment, when the target power mode is the vehicle sleep mode, the corresponding output switching signal value can be set to 0. After the switching signal value is sent to each area controller, each domain controller determines whether the corresponding electrical system (such as the air conditioning system, display screen, interior heater, etc.) is turned on or off based on the switching signal value. After all electrical systems have been determined, and all electrical systems that need to be turned on have been turned on, or all electrical systems that need to be turned off have been turned off, the vehicle's power mode is successfully switched to the target power mode.

[0027] In this embodiment, the regional device signal sent by the regional controller determines whether the current vehicle power mode needs to be switched. When a mode switch is required, the target power mode can be determined directly based on the regional device signal, and the vehicle can be switched to the target power mode, thereby improving the efficiency of vehicle power mode switching and enhancing the user's driving experience.

[0028] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, includes:

[0029] When the vehicle power mode is the vehicle sleep mode, if a first switching signal is received from the area controller, the target power mode of the vehicle is determined to be the vehicle standby mode; the first switching signal is generated after the area controller detects a valid key matching the vehicle within a preset detection range.

[0030] Understandably, the valid key matched with the car can be a Bluetooth key or a physical key, or other legitimate key. When the vehicle's power mode is in sleep mode, only valid key detection and anti-theft functions are performed inside the car. Therefore, each zone controller can detect in real time whether a valid key matched with the car exists within a preset detection range. The preset detection range can be set to 1m, 2m, etc.

[0031] Specifically, after the area controller detects in real time whether a valid key matching the vehicle exists within a preset detection range, if the area controller detects a valid key matching the vehicle within the preset detection range, a first switching signal is generated and output; if the area controller does not detect a valid key within the preset detection range, it indicates that the current vehicle power mode does not need to be switched, and therefore the vehicle remains in sleep mode. Further, after the area controller detects the valid key within the preset detection range, generates and outputs the first switching signal, the system receives the first switching signal output by the area controller and determines the target power mode as the vehicle standby mode.

[0032] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, further includes:

[0033] When the vehicle power mode is the vehicle standby mode, if a second switching signal is received from the area controller, the target power mode of the vehicle is determined to be the vehicle hibernation mode; the second switching signal is generated after the area controller detects that the preset static functions of each electrical system in the vehicle have been completed.

[0034] For example, static functions refer to features such as delayed air conditioning shutdown and window closing. Understandably, after the user leaves the vehicle, the area controller detects whether the car's windows, air conditioning, and other devices are closed. When the user sets the delayed air conditioning shutdown function, once the area controller detects that the air conditioning is off, it indicates that all electrical systems in the car are shut down. At this time, the car needs to enter a vehicle sleep mode, retaining only the valid key detection function and the anti-theft function. Furthermore, the static functions of each electrical system can be detected by the corresponding area controller; for example, the left rear window can be detected by the left rear area controller, and the right rear window can be detected by the right rear area controller.

[0035] Specifically, after the area controller detects in real time whether the static functions of each electrical system in the vehicle are completed, a second switching signal is generated and output when the area controller detects that the static functions of each electrical system in the vehicle are completed. If the area controller detects that the static functions of each electrical system in the vehicle are not yet completed, the second switching signal is not generated temporarily, and the second switching signal is generated after all static functions are completed. If the static functions of each electrical system are still not completed after the preset detection time, the name of the device with the incomplete static function is sent to the user's bound mobile terminal so that the user can complete the static functions of each electrical system through manual processing or other means. Furthermore, after the area controller detects that the static functions of all electrical systems in the vehicle have been completed, it generates and outputs a second switching signal, then receives the second switching signal sent by the area controller and determines the target power mode as the vehicle sleep mode. Understandably, when the area controller detects that the static functions of all electrical systems in the vehicle have been completed, it indicates that the current power mode has been switched to the vehicle sleep mode. At the same time, the domain controller module has received the second switching signal sent by the area controller. At this time, since the vehicle is already in the target power mode (i.e., the vehicle sleep mode), there is no need to control each area controller to switch the vehicle to the target power mode again. In addition, the vehicle network of the vehicle in the vehicle sleep mode will also be in a sleep state.

[0036] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, further includes:

[0037] When the vehicle power mode is the vehicle standby mode, if a third switching signal is received from the area controller, the target power mode of the vehicle is determined to be the in-vehicle living mode; the third switching signal is generated after the area controller detects that the vehicle meets a first preset detection condition; the first preset detection condition includes at least one of the following conditions:

[0038] The car door status changes from closed to open;

[0039] There is someone in the driver's seat of the car.

[0040] Understandably, in this embodiment, the detection of the car door status mainly involves detecting the status of the left front door and the right front door; the detection of whether there is someone in the driver's seat can be done by a sensor installed in the driver's seat. For example, when the sensor in the driver's seat displays a high level, it indicates that there is someone in the driver's seat; when the sensor in the driver's seat displays a low level, it indicates that there is no one in the driver's seat.

[0041] Specifically, after the area controller detects in real time whether the vehicle door status changes and whether there is someone in the driver's seat, a third switching signal is generated and output when the area controller detects that the vehicle door status (left front door or right front door) changes from closed to open, and / or the area controller detects that someone is in the driver's seat through the sensor installed in the driver's seat; if the area controller does not detect that the vehicle door status changes from closed to open, and the sensor installed in the driver's seat does not detect that someone is in the driver's seat, it indicates that no user is about to enter the vehicle or is already in the vehicle, so it is inconvenient to maintain the vehicle standby mode.

[0042] Furthermore, after the area controller detects that the vehicle door status changes from closed to open, and / or the area controller detects that there is someone in the driver's seat of the vehicle, a third switching signal is generated and output. Then, the third switching signal output by the area controller is received, and the in-vehicle living mode is selected from the associated power modes corresponding to the vehicle standby mode, and the target power mode is determined as the in-vehicle living mode.

[0043] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, includes:

[0044] When the vehicle power mode is the in-vehicle living mode, if a fourth switching signal or a fifth switching signal is received from the area controller, then the target power mode of the vehicle is determined to be the vehicle standby mode.

[0045] The fourth switching signal is generated after the area controller detects that the vehicle meets the second preset detection condition; the second preset detection condition includes all of the following conditions:

[0046] The car's gear position is the parking gear;

[0047] The setting time for the parking gear exceeds the first preset time.

[0048] The driver's seat of the vehicle was unoccupied.

[0049] The fifth switching signal is generated after the area controller detects that the vehicle meets the third preset detection condition; the third preset detection condition includes at least one of the following conditions:

[0050] The car doors are closed and the key is locked.

[0051] The AVN screen of the vehicle is in a power-off state.

[0052] The car's parking switch is in a closed state, and the duration of the closed state exceeds a preset duration threshold.

[0053] Understandably, a car's gears include parking, forward, reverse, and neutral. The setting duration refers to the length of time the car remains in a specific gear position. For example, the setting duration is the time the car remains in parking position after the user shifts the gear to parking. Optionally, the first preset duration can be set to twenty minutes, thirty minutes, etc.

[0054] Specifically, after the area controller detects the vehicle's gear position and the gear setting duration in real time, and detects whether there is anyone in the driver's seat, if the area controller detects that the vehicle is in parking gear and the parking gear setting duration exceeds a first preset duration, and detects that there is no one in the driver's seat through the sensor installed on the driver's seat, it indicates that the vehicle should enter the vehicle standby mode.

[0055] Understandably, the key status includes locked and unlocked states. The locked state indicates that all doors of the car are locked and cannot be opened until unlocked; the unlocked state indicates that all doors of the car can be opened. The AVN (Audio, Video, Navigation) screen display status includes power-on and power-off states. The power-on state indicates that the AVN screen is powered on and displays the car's audio, video, or navigation information; the power-off state indicates that the AVN screen is in a black screen state, meaning it does not display audio, video, or navigation information. The parking switch status includes closed and open states. The closed state indicates that the parking switch has been pressed by the user; the open state indicates that the parking switch has not been pressed by the user.

[0056] Specifically, after the area controller monitors the vehicle's door status, key status, AVN screen display status, and parking switch status in real time, when the area controller detects that the door status is closed and the key status is locked, it indicates that all vehicle doors are closed and cannot be opened when the key is locked, signifying that the user has left the vehicle and locked it. At this time, the vehicle's power mode should be switched to standby mode; or, when the area controller detects that the AVN screen display status is deactivated, it indicates that... The AVN screen no longer displays audio, video, or navigation information, indicating that the user does not currently need to use the vehicle. Therefore, the vehicle's power mode can be switched to standby mode. Alternatively, if the area controller detects that the parking switch is closed and the closed state lasts for more than a preset duration threshold, it indicates that the vehicle is currently parked. Therefore, the vehicle's power mode can be switched to standby mode to reduce energy consumption. The preset duration threshold can be set to 5 seconds, 6 seconds, etc. Furthermore, when any of the above conditions are met, the area controller generates a fifth switching signal and outputs it.

[0057] Furthermore, after the area controller generates a fourth switching signal or a fifth switching signal, the system receives the fourth or fifth switching signal output from the area controller, selects the vehicle standby mode from the associated power modes corresponding to the in-vehicle living mode, and determines the target power mode as the vehicle standby mode.

[0058] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, further includes:

[0059] When the vehicle power mode is the standby driving mode, if the sixth switching signal and / or the seventh switching signal sent by the area controller are received, the target power mode of the vehicle is determined to be the in-vehicle living mode.

[0060] The sixth switching signal is generated after the area controller detects that the vehicle meets the fourth preset detection condition; the fourth preset detection condition includes all of the following conditions:

[0061] The car door is in the open state;

[0062] The driver's seat of the vehicle was unoccupied.

[0063] The seventh switching signal is generated after the area controller detects that the vehicle meets the fifth preset detection condition; the fifth preset detection condition includes all of the following conditions:

[0064] The car's gear position is the parking gear;

[0065] The parking gear setting time exceeds the second preset time; the second preset time is greater than the first preset time.

[0066] Specifically, when the vehicle power mode is in standby mode, the area controller detects the vehicle door status (mainly the left front door in this embodiment) and whether there is anyone in the driver's seat in real time. If the area controller detects that the door is open and the sensor installed in the driver's seat detects that there is no one in the driver's seat, it indicates that the driver may have left the vehicle. At this time, the vehicle power mode can be switched to in-vehicle living mode, thereby generating and outputting the sixth switching signal.

[0067] Furthermore, after the area controller detects the vehicle's gear position and the gear setting duration in real time, when the area controller detects that the vehicle is in parking gear and the parking gear setting duration exceeds a second preset duration, it indicates that the vehicle is currently in a parking state. Therefore, the vehicle's overall power mode can be switched to in-vehicle living mode, thereby generating and outputting a seventh switching signal. For example, the second preset duration can be set to one hour.

[0068] Furthermore, when the area controller detects that the car door is in an open state and the driver's seat is unoccupied, it generates and outputs a sixth switching signal; and / or when the area controller detects that the car is in parking gear and the parking gear setting time exceeds a second preset time, it generates and outputs a seventh switching signal. Then, it receives the sixth or seventh switching signal output by the area controller, selects the in-vehicle living mode from the associated power modes corresponding to the driving mode, and determines the target power mode as the in-vehicle living mode.

[0069] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, includes:

[0070] When the vehicle power mode is the vehicle standby mode, if an eighth switching signal is received from the area controller, the target power mode of the vehicle is determined to be the driving standby mode; the eighth switching signal is generated after the area controller detects that the vehicle meets the sixth preset detection condition; the sixth preset detection condition includes all of the following conditions:

[0071] The key position status of the car is that the key is valid and located inside the vehicle;

[0072] The brake pedal depth of the vehicle is greater than or equal to a preset pedal depth threshold.

[0073] The car key location status can be verified by a key detection device or anti-theft detection device inside the car to determine whether the car key carried by the driver or other personnel matches the car. If the car key matches the car, it indicates that the car key is valid and the key is inside the car. If the car key does not match the car, it is determined that the valid key is not inside the car.

[0074] Specifically, after the area controller detects the key position status and brake pedal depth of the car in real time, when the area controller detects that the key position status is valid and the key is inside the car, and the brake pedal depth is greater than a preset pedal depth threshold, it indicates that the user is ready to drive the car. Therefore, the vehicle's power mode can be switched to the standby mode, thereby generating and outputting the eighth switching signal.

[0075] In one embodiment, step S20, determining the target power mode of the vehicle from the vehicle power modes based on the signals of each of the area devices and the vehicle power mode, further includes:

[0076] When the vehicle power mode is the standby driving mode, if the fifth switching signal sent by the area controller is received, the target power mode of the vehicle is determined to be the vehicle standby mode.

[0077] Specifically, when the vehicle power mode is in standby mode, if the area controller detects that the door is closed and the key is locked, or the area controller detects that the AVN screen is powered off, or the parking switch is closed and the closed state lasts for more than a preset duration threshold, that is, the area controller will output a fifth switching signal. Upon receiving the fifth switching signal output by the area controller, the vehicle standby mode in the associated power mode corresponding to the standby mode is selected, and the target power mode is determined as the vehicle standby mode.

[0078] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, includes:

[0079] When the vehicle power mode is the in-vehicle living mode, if a ninth switching signal is received from the area controller, the target power mode of the vehicle is determined to be the standby driving mode; the ninth switching signal is generated after the area controller detects that the vehicle meets the seventh preset detection condition; the seventh preset detection condition includes all of the following conditions:

[0080] The car's air conditioning is in the "on" state.

[0081] The car's key position status is that the valid key is inside the vehicle.

[0082] Understandably, the working status of an air conditioner includes an on state and an off state; the on state indicates that the air conditioner is turned on, and the off state indicates that the air conditioner is turned off.

[0083] Specifically, after the area controller monitors the vehicle's air conditioning status in real time, if the area controller detects that the air conditioning is on and a valid key is inside the vehicle, it indicates that the user is ready to drive the car. Therefore, the vehicle's overall power mode can be switched to the standby driving mode, thereby generating and outputting the ninth switching signal. Further, upon receiving the ninth switching signal output by the area controller, the standby driving mode is selected from the associated power modes corresponding to the in-vehicle living mode, and the target power mode is determined as the standby driving mode.

[0084] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, includes:

[0085] When the vehicle power mode is the standby driving mode, if a tenth switching signal is received from the area controller, the target power mode of the vehicle is determined to be the driving mode; the tenth switching signal is generated after the area controller detects that the vehicle meets the eighth preset detection condition; the eighth preset detection condition includes all of the following conditions:

[0086] The car's key position status is that the valid key is inside the vehicle;

[0087] The brake pedal depth of the vehicle is greater than or equal to a preset pedal depth threshold.

[0088] The car's gears are either forward or reverse.

[0089] Specifically, when the area controller detects that the key is valid inside the vehicle, indicating successful key verification, and detects that the brake pedal depth is greater than a preset pedal depth threshold, and the vehicle is in drive or reverse gear, it indicates that the user has switched the vehicle from park to drive or reverse, i.e., from park to drive, thus indicating that the user has started driving. Therefore, the vehicle's power mode can be switched from standby mode to driving mode, generating and outputting a tenth switching signal. Optionally, the preset pedal depth threshold can be 0, 5%, 10% (this percentage is set based on the vehicle's floor; for example, if the brake pedal is pressed down to the floor, the brake pedal depth is 0), etc. Furthermore, when the driver accidentally touches the brake pedal while driving, the change in brake pedal depth is small, and the vehicle does not enter braking mode. Therefore, using the preset pedal depth threshold for auxiliary judgment can improve detection accuracy.

[0090] Furthermore, if the area controller detects that the key position status is valid but not in the vehicle, or the brake pedal depth is less than the preset pedal depth threshold, or the vehicle gear is in neutral or park, it indicates that the user has not started driving, so the current standby driving mode can be maintained without switching.

[0091] Furthermore, when the area controller detects that the key position status is a valid key located inside the vehicle, the brake pedal depth is greater than or equal to a preset pedal depth threshold, and the vehicle gear is a forward or reverse gear, it generates and outputs a tenth switching signal, receives the tenth switching signal, selects the driving mode from the associated power modes corresponding to the driving mode, and determines the target power mode as the driving mode.

[0092] In one embodiment, step S20, namely determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices, includes:

[0093] When the vehicle power mode is the driving mode, if the eleventh switching signal sent by the area controller is received, the target power mode of the vehicle is determined to be the standby driving mode; the eleventh switching signal is generated after the area controller detects that the vehicle meets the ninth preset detection condition; the ninth preset detection condition includes all of the following conditions:

[0094] The car's key position status is that the valid key is inside the vehicle;

[0095] The brake pedal depth of the vehicle is greater than a preset pedal depth threshold.

[0096] The car's gear position is either neutral or park.

[0097] Specifically, when the vehicle power mode is driving mode, the area controller monitors the key position status, brake pedal depth, and vehicle gear position in real time. When the area controller detects that the key position status is valid and the key is inside the vehicle, the brake pedal depth is greater than a preset pedal depth threshold, and the vehicle gear is in neutral or park, it indicates that the user has switched the vehicle gear from a running gear (such as forward or reverse) to neutral or park. This means that the user may have finished using the vehicle or is temporarily parking. In this case, the vehicle power mode can be switched to standby driving mode, thereby generating and outputting an eleventh switching signal.

[0098] Furthermore, when the area controller detects that the key position status is a valid key located inside the vehicle, the brake pedal depth is greater than a preset pedal depth threshold, and the vehicle gear is in neutral or park, it generates and outputs an eleventh switching signal, receives the eleventh switching signal output by the area controller, and determines the target power mode as the standby driving mode.

[0099] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0100] In one embodiment, a car is provided, such as Figure 1 As shown, it includes at least one area controller and a domain controller module for executing the above-described automatic switching method for vehicle power modes; all area controllers are communicatively connected to the central domain controller.

[0101] Furthermore, domain controller module 1 may contain multiple domain controllers that are communicatively connected to each other, such as... Figure 1The central domain controller 10, the first domain controller 11, and the second domain controller 12 are three different domain controllers, and they are connected via Ethernet communication. The domain controller module receives area device signals sent by each area controller 13 to determine the target power mode corresponding to the current vehicle power mode, and the corresponding switching signal value. It also sends the switching signal value to each area controller 13, enabling each area controller 13 to determine whether the electrical system of its corresponding vehicle jurisdiction is turned on or whether the ECU (Electronic Control Unit) software function block corresponding to its corresponding vehicle jurisdiction is enabled, thereby switching the vehicle's current power mode to the target power mode. The domain controller module 1 and the area controllers 13 are connected via a CAN network.

[0102] Furthermore, Figure 1 The system also includes an electronic control unit 14, which is communicatively connected to the domain controller module 1. Furthermore, the domain controller module 1 and the area controller 13 are both powered by constant power, while the electronic control unit 14 can be powered by constant power or by controllable power (for example, the output device must be powered by controllable power, such as low beam headlights). It is required that the power consumption of all constant power modules is within an acceptable range, and only the power consumption of the whole vehicle needs to meet the requirements (such as the whole vehicle current being less than 25mA).

[0103] Furthermore, the controllable power supply for each area controller 13 can be a chip such as a relay, a high-side or low-side drive chip, or an integrated electronic switch or fuse.

[0104] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0105] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0106] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A method for automatic switching of vehicle power modes, characterized in that, include: Obtain the current vehicle power mode and receive regional device signals sent by each regional controller in real time; The vehicle power mode is used to indicate the operating mode of each electrical system in the vehicle. Obtain the associated power mode corresponding to the vehicle power mode, and determine the target power mode of the vehicle from the associated power modes based on the signals of each of the area devices; the associated power mode refers to a power mode that can be switched with the vehicle power mode; each target power mode corresponds to a different switching signal value, and the switching signal value is used to indicate whether each electrical system in the vehicle is automatically turned on. Each of the aforementioned area controllers determines whether the electrical systems within its controlled area are started or stopped based on the switching signal value corresponding to the target power mode. After the area controller determines and controls all electrical systems to perform start or stop operations, the vehicle is switched to the target power mode. The vehicle's power modes include vehicle hibernation mode, vehicle standby mode, in-vehicle living mode, standby driving mode, and driving mode. The associated power modes corresponding to the in-vehicle living mode are the vehicle standby mode and the driving mode; The associated power modes corresponding to the driving mode are the vehicle standby mode, the in-vehicle living mode, and the driving mode; In vehicle hibernation mode, all electrical systems in the car enter hibernation or minimum power consumption operation state, the car network is in hibernation state, and high voltage is turned off; In the vehicle standby mode, all electrical systems in the car enter an executable standby mode, the car network is in working mode and the high voltage is turned on; In in-car living mode, all electrical systems in the car, except for the driving electrical system, are either active or turned on. When the car is a pure electric vehicle or a hybrid vehicle, the high-voltage circuit is activated. When the car is a pure gasoline vehicle, the engine is turned off. In standby mode, all electrical systems in the car are either active or turned on; when the car is a pure electric vehicle or a hybrid vehicle, the high-voltage circuit is on; when the car is a hybrid vehicle, the engine is running; when the car is a pure gasoline vehicle, the engine is either running or has failed to start. In driving mode, all electrical systems in the car are activated or turned on, and traction output is ready to be used. When the car is a pure electric vehicle or a hybrid vehicle, the high voltage is turned on. When the car is a hybrid vehicle, the engine is started. When the car is a pure gasoline vehicle, the engine is already started.

2. The automatic vehicle power mode switching method as described in claim 1, characterized in that, The associated power modes corresponding to the vehicle sleep mode include the vehicle standby mode; The step of determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices includes: When the vehicle power mode is the vehicle sleep mode, if a first switching signal is received from the area controller, the target power mode of the vehicle is determined to be the vehicle standby mode; the first switching signal is generated after the area controller detects a valid key matching the vehicle within a preset detection range.

3. The automatic vehicle power mode switching method as described in claim 1, characterized in that, The associated power modes corresponding to the vehicle standby mode include the vehicle hibernation mode; The step of determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices includes: When the vehicle power mode is the vehicle standby mode, if a second switching signal is received from the area controller, the target power mode of the vehicle is determined to be the vehicle hibernation mode; the second switching signal is generated after the area controller detects that the preset static functions of each electrical system in the vehicle have been completed.

4. The automatic vehicle power mode switching method as described in claim 1, characterized in that, The associated power modes corresponding to the vehicle standby mode include the in-vehicle living mode; The step of determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices includes: When the vehicle power mode is the vehicle standby mode, if a third switching signal is received from the area controller, the target power mode of the vehicle is determined to be the in-vehicle living mode; the third switching signal is generated after the area controller detects that the vehicle meets a first preset detection condition; the first preset detection condition includes at least one of the following conditions: The car door status changes from closed to open; There is someone in the driver's seat of the car.

5. The automatic vehicle power mode switching method as described in claim 1, characterized in that, The associated power modes corresponding to the in-vehicle lifestyle mode include the vehicle standby mode; The step of determining the target power mode area device signal of the vehicle from the associated power modes based on the area device signals of each of the aforementioned areas includes: When the vehicle power mode is the in-vehicle living mode, if a fourth switching signal or a fifth switching signal is received from the area controller, then the target power mode of the vehicle is determined to be the vehicle standby mode. The fourth switching signal is generated after the area controller detects that the vehicle meets the second preset detection condition; the second preset detection condition includes all of the following conditions: The car's gear position is the parking gear; The setting time for the parking gear exceeds the first preset time. The driver's seat of the vehicle was unoccupied. The fifth switching signal is generated after the area controller detects that the vehicle meets the third preset detection condition; the third preset detection condition includes at least one of the following conditions: The car doors are closed and the key is locked. The AVN screen of the vehicle is in a power-off state. The car's parking switch is in a closed state, and the duration of the closed state exceeds a preset duration threshold.

6. The automatic vehicle power mode switching method as described in claim 5, characterized in that, The associated power modes corresponding to the driving standby mode include the in-vehicle living mode; The step of determining the target power mode area device signal of the vehicle from the associated power modes based on the area device signals of each of the aforementioned areas includes: When the vehicle power mode is the standby driving mode, if the sixth switching signal and / or the seventh switching signal sent by the area controller are received, the target power mode of the vehicle is determined to be the in-vehicle living mode. The sixth switching signal is generated after the area controller detects that the vehicle meets the fourth preset detection condition; the fourth preset detection condition includes all of the following conditions: The car door is in the open state; The driver's seat of the vehicle was unoccupied. The seventh switching signal is generated after the area controller detects that the vehicle meets the fifth preset detection condition; the fifth preset detection condition includes all of the following conditions: The car's gear position is the parking gear; The parking gear setting time exceeds the second preset time; the second preset time is greater than the first preset time.

7. The automatic vehicle power mode switching method as described in claim 5, characterized in that, The step of determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices includes: When the vehicle power mode is the standby driving mode, if the fifth switching signal sent by the area controller is received, the target power mode of the vehicle is determined to be the vehicle standby mode.

8. The automatic vehicle power mode switching method as described in claim 1, characterized in that, The associated power modes corresponding to the vehicle standby mode include the driving standby mode; The step of determining the target power mode area device signal of the vehicle from the associated power modes based on the area device signals of each of the aforementioned areas includes: When the vehicle power mode is the vehicle standby mode, if an eighth switching signal is received from the area controller, the target power mode of the vehicle is determined to be the driving standby mode; the eighth switching signal is generated after the area controller detects that the vehicle meets the sixth preset detection condition; the sixth preset detection condition includes all of the following conditions: The car's key position status is that the valid key is inside the vehicle; The brake pedal depth of the vehicle is greater than or equal to a preset pedal depth threshold.

9. The automatic vehicle power mode switching method as described in claim 1, characterized in that, The associated power modes corresponding to the in-vehicle lifestyle mode include the standby driving mode; The step of determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices includes: When the vehicle power mode is the in-vehicle living mode, if a ninth switching signal is received from the area controller, the target power mode of the vehicle is determined to be the standby driving mode; the ninth switching signal is generated after the area controller detects that the vehicle meets the seventh preset detection condition; the seventh preset detection condition includes all of the following conditions: The car's air conditioning is in the "on" state. The car's key position status is that the valid key is inside the vehicle.

10. The automatic switching method for vehicle power mode as described in claim 1, characterized in that, The associated power modes corresponding to the waiting driving mode include the driving mode; The step of determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices includes: When the vehicle power mode is the standby driving mode, if the tenth switching signal sent by the area controller is received, the target power mode of the vehicle is determined to be the driving mode; the tenth switching signal is generated after the area controller detects that the vehicle meets the eighth preset detection condition. The eighth preset detection condition includes all of the following conditions: The car's key position status is that the valid key is inside the vehicle; The brake pedal depth of the vehicle is greater than or equal to a preset pedal depth threshold. The car's gears are either forward or reverse.

11. The automatic vehicle power mode switching method according to any one of claims 1 to 10, characterized in that, The associated power modes corresponding to the driving modes include the standby driving mode; The step of determining the target power mode of the vehicle from the associated power modes based on the signals of each of the regional devices includes: When the vehicle power mode is the driving mode, if the eleventh switching signal sent by the area controller is received, the target power mode of the vehicle is determined to be the standby driving mode; the eleventh switching signal is generated after the area controller detects that the vehicle meets the ninth preset detection condition; the ninth preset detection condition includes all of the following conditions: The car's key position status is that the valid key is inside the vehicle; The brake pedal depth of the vehicle is greater than a preset pedal depth threshold. The car's gear position is either neutral or park.

12. A car, characterized in that, It includes at least one area controller and a domain controller module for performing the automatic switching method of vehicle power mode as described in any one of claims 1 to 11; all the area controllers are communicatively connected to the domain controller module.

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