A control method, a control system, a vehicle and a storage medium after the vehicle is turned off

Abstract

The application provides a control method and system after the vehicle is turned off, a vehicle and a storage medium, comprising: in response to a vehicle turn-off power-off instruction, a vehicle-mounted sensing device remains in a working state, and a vehicle controller enters a hibernation state; when the vehicle-mounted sensing device identifies a user's gesture operation, the vehicle-mounted sensing device generates a steering control signal corresponding to the gesture operation; the vehicle-mounted sensing device sends the steering control signal to a target controller in the vehicle controller to wake up the target controller; the target controller is a controller necessary in a user steering scene indicated by the gesture operation; the target controller controls a steering execution mechanism to perform a steering action according to the control signal, and reenters the hibernation state after the execution is completed. In this way, the user's small steering scene demand can be met after the vehicle is turned off, the target controller in the vehicle controller is powered on as needed, the target controller works as needed, the whole vehicle energy consumption can be reduced, and the cruising range can be prolonged.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a control method, control system, vehicle, and storage medium for a vehicle after it is turned off. Background Technology

[0002] In practical applications, users sometimes have new control needs after the vehicle is turned off. For example, in parking scenarios, after turning off the engine and getting out of the car, users often find that their wheels still need to be adjusted to a certain angle. To address this, existing technologies have developed a "sentinel mode" so that users can still control the vehicle even when the engine is off. However, in sentry mode, all the vehicle's controllers operate synchronously, resulting in huge power consumption. A single night in sentry mode can reduce the vehicle's total range by ten to thirty kilometers. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a control method, control system, vehicle, and storage medium for a vehicle after it is turned off. After the vehicle is turned off and power is cut off, if the onboard sensing device recognizes a hand gesture indicating steering, it wakes up the necessary controller corresponding to the steering action. After the necessary controller controls the steering actuator to complete the steering action, it re-enters a dormant state. In this way, even after the vehicle is turned off, the user's minor steering needs can still be met. Simultaneously, the target controller in the vehicle controller is powered on demand, enabling it to operate on demand, thereby reducing overall vehicle energy consumption and extending the driving range.

[0004] This application provides a control method for a vehicle after it is turned off, the control method including:

[0005] In response to the vehicle shutdown and power-off command, the on-board sensing equipment remains operational while the vehicle controller enters sleep mode.

[0006] When the vehicle-mounted sensing device recognizes a user's gesture, it generates a steering control signal corresponding to the gesture.

[0007] The vehicle-mounted sensing device sends the steering control signal to the target controller in the vehicle controller to wake up the target controller; wherein, the target controller refers to the controller necessary in the user steering scenario indicated by the gesture operation;

[0008] The target controller controls the steering actuator to perform a steering action according to the control signal, and then re-enters the sleep state after the action is completed.

[0009] Furthermore, the onboard sensing device sends the steering control signal to the target controller in the vehicle controller to wake up the target controller, including:

[0010] The on-board sensing device sends the steering control signal to the body controller to wake up the body controller;

[0011] The body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered.

[0012] The vehicle-mounted sensing device determines the power supply controller based on the steering control signal and sends the steering control signal to the power supply controller to wake it up.

[0013] Furthermore, in the user steering scenario, the controller to be powered includes at least one or more of the following: electronic power steering controller EPS, electronic stability controller ESC, electronic parking brake controller EPB, and vehicle power control unit MDCU.

[0014] Furthermore, the body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered, including:

[0015] The vehicle controller determines the scene power supply group corresponding to the user steering scenario indicated by the steering control signal, and identifies the controller in the scene power supply group as the controller to be powered; wherein, the vehicle controller is pre-divided into multiple scene power supply groups according to different application scenarios; or, the vehicle controller is pre-divided into multiple scene power supply groups based on different application scenarios and the direction of fuse current distribution.

[0016] Alternatively, the body controller may identify each controller corresponding to the user steering scenario indicated by the steering control signal as the controller to be powered; and control the power control line corresponding to each controller to be powered individually to control the power supply of each controller to be powered.

[0017] Furthermore, the control method also includes:

[0018] Check whether the vehicle battery charge is higher than a preset safety threshold;

[0019] If the power is higher, then a battery is used to power the vehicle-mounted sensing device, the body controller, and the controller to be powered.

[0020] If the power level is not higher, the power battery will be activated to supply power to the vehicle-mounted sensing device, the body controller, and the controller to be powered.

[0021] Furthermore, the method by which the vehicle-mounted sensing device sends the steering control signal to any controller includes:

[0022] If the vehicle-mounted sensing device supports CAN communication, the steering control signal will be sent directly to the controller.

[0023] If the vehicle-mounted sensing device only supports LIN or serial communication, the steering control signal is sent to the real-time kernel of the intelligent driving domain controller; the real-time kernel converts the steering control signal into a CAN communication signal and forwards it to the controller.

[0024] This application embodiment also provides a control system for a vehicle after it is turned off, the control system comprising:

[0025] Vehicle-mounted sensing devices are used to maintain operational status in response to vehicle shutdown and power-off commands;

[0026] The vehicle controller is configured to enter a sleep state in response to a vehicle power-off command.

[0027] The vehicle-mounted sensing device is used to generate a steering control signal corresponding to the user's gesture operation when the user's gesture operation is detected.

[0028] The vehicle-mounted sensing device is used to send the steering control signal to a target controller in the vehicle controller to wake up the target controller; wherein, the target controller refers to the controller necessary in the user steering scenario indicated by the gesture operation;

[0029] The target controller is used to control the steering actuator to perform steering actions according to the control signal, and to re-enter the sleep state after the actions are completed.

[0030] Furthermore, the on-board sensing device is used to send the steering control signal to a target controller in the vehicle controller to wake up the target controller, including:

[0031] The on-board sensing device sends the steering control signal to the body controller to wake up the body controller;

[0032] The body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered.

[0033] The vehicle-mounted sensing device determines the power supply controller based on the steering control signal and sends the steering control signal to the power supply controller to wake it up.

[0034] Furthermore, in the user steering scenario, the controller to be powered includes at least one or more of the following: electronic power steering controller EPS, electronic stability controller ESC, electronic parking brake controller EPB, and vehicle power control unit MDCU.

[0035] Furthermore, the body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered, including:

[0036] The vehicle controller determines the scene power supply group corresponding to the user steering scenario indicated by the steering control signal, and identifies the controller in the scene power supply group as the controller to be powered; wherein, the vehicle controller is pre-divided into multiple scene power supply groups according to different application scenarios; or, the vehicle controller is pre-divided into multiple scene power supply groups based on different application scenarios and the direction of fuse current distribution.

[0037] Alternatively, the body controller may identify each controller corresponding to the user steering scenario indicated by the steering control signal as the controller to be powered; and control the power control line corresponding to each controller to be powered individually to control the power supply of each controller to be powered.

[0038] Furthermore, the body controller is used for:

[0039] Check whether the vehicle battery charge is higher than a preset safety threshold;

[0040] If the power is higher, then a battery is used to power the vehicle-mounted sensing device, the body controller, and the controller to be powered.

[0041] If the power level is not higher, the power battery will be activated to supply power to the vehicle-mounted sensing device, the body controller, and the controller to be powered.

[0042] This application embodiment also provides a vehicle, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the vehicle is running, the processor communicates with the memory via the bus. When the machine-readable instructions are executed by the processor, the steps of the control method for a vehicle after it is turned off, as described above, are performed.

[0043] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the control method for a vehicle after it is turned off, as described above.

[0044] This application provides a vehicle control method after the engine is turned off, comprising: in response to a vehicle power-off command, an on-board sensing device remains operational while the vehicle controller enters a sleep state; when the on-board sensing device detects a user's gesture operation, it generates a steering control signal corresponding to the gesture operation; the on-board sensing device sends the steering control signal to a target controller in the vehicle controller to wake up the target controller; wherein, the target controller refers to a controller necessary in the user steering scenario indicated by the gesture operation; the target controller controls the steering actuator to perform a steering action according to the control signal, and re-enters the sleep state after the action is completed.

[0045] In this way, after the vehicle is turned off and power is cut off, if the onboard sensing device recognizes a hand gesture indicating steering, it will wake up the necessary controller for steering. After the necessary controller controls the steering actuator to complete the steering action, it will return to sleep mode. In this way, the vehicle can still meet the user's needs for minor steering scenarios even after the vehicle is turned off, while providing power to the target controller in the vehicle controller on demand, enabling it to operate on demand, thereby reducing the vehicle's energy consumption and extending the driving range.

[0046] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 A flowchart of a vehicle control method after engine shutdown, provided in an embodiment of this application, is shown.

[0049] Figure 2 This illustration shows a connection diagram between an in-vehicle sensing device and an intelligent driving domain controller according to an embodiment of this application.

[0050] Figure 3 This illustration shows a schematic diagram of a vehicle-mounted sensing device waking up a target controller according to an embodiment of this application;

[0051] Figure 4 This illustration shows one of the power supply diagrams for a vehicle body controller provided in an embodiment of this application;

[0052] Figure 5This is a second schematic diagram of the power supply of a vehicle body controller provided in an embodiment of this application;

[0053] Figure 6 This invention provides a schematic diagram of the structure of a vehicle control system after engine shutdown, according to an embodiment of this application.

[0054] Figure 7 A schematic diagram of the structure of a vehicle provided in an embodiment of this application is shown. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. Based on the embodiments of this application, every other embodiment obtained by those skilled in the art without inventive effort falls within the scope of protection of this application.

[0056] Research has found that in practical applications, users sometimes have new control needs after the vehicle is turned off. For example, in parking scenarios, after turning off the engine and getting out of the car, users often find that their wheels still need to be adjusted to a certain angle. To address this, existing technology has developed a "sentinel mode" to allow users to control the vehicle even after the engine is off. However, in sentry mode, all the vehicle's controllers operate synchronously, resulting in significant power consumption. A single night in sentry mode can reduce the vehicle's total range by tens of kilometers, or even twenty or thirty kilometers.

[0057] Based on this, embodiments of this application provide a control method, control system, vehicle, and storage medium for vehicles after the engine is turned off. After the vehicle is turned off and power is cut off, if the on-board sensing device recognizes a hand gesture indicating steering, it wakes up the necessary controller corresponding to the steering action. After the necessary controller controls the steering actuator to complete the steering action, it re-enters a dormant state. In this way, the user's needs for minor steering scenarios can still be met after the vehicle is turned off, while the target controller in the vehicle controller is powered on demand, enabling it to operate on demand, thereby reducing overall vehicle energy consumption and extending the driving range.

[0058] Please see Figure 1 , Figure 1 This is a flowchart illustrating a vehicle control method after engine shutdown, provided as an embodiment of this application. Figure 1 As shown in the embodiments of this application, the control method includes:

[0059] S101. In response to the vehicle power-off command, the on-board sensing equipment remains operational, while the vehicle controller enters sleep mode.

[0060] In this step, after detecting the vehicle's power-off command, the onboard sensing equipment remains operational, while the various controllers in the vehicle enter a sleep state. This operational status includes both transitioning from a powered-off state to an operational state and maintaining the operational state before the power-off. In the sleep state, the vehicle controller operates in a low-power mode, requiring less energy than in the operational state after being woken up, thus saving energy. For example, in descending order of energy efficiency, low-power modes may include a sleep mode where some kernels of the vehicle controller operate, a sleep mode under normal communication conditions, and a sleep mode that is only woken up by specific interrupts. In practical implementation, the vehicle controller can be configured to operate in the appropriate low-power mode according to actual needs.

[0061] S102. When the vehicle-mounted sensing device recognizes the user's gesture operation, it generates a steering control signal corresponding to the gesture operation.

[0062] In the user steering scenario where the user controls the steering with gestures in the embodiments of this application, the vehicle-mounted sensing device can be a smart camera, which can be obtained by embedding a pre-trained deep learning model for gesture recognition into the camera chip.

[0063] In this embodiment, the vehicle-mounted sensing device can independently recognize a user's hand gestures, determine the scenario indicated by the gestures, and generate corresponding control signals. For example, the vehicle-mounted sensing device can recognize a user's gesture of drawing a circle to the left, indicating that the user wants to turn the steering wheel to the left, corresponding to a user steering scenario; the vehicle-mounted sensing device can also recognize a user's gesture of drawing a circle to the right, indicating that the user wants to turn the steering wheel to the right, corresponding to a user steering scenario. Subsequently, the vehicle-mounted sensing device generates steering control signals corresponding to the hand gestures to activate the corresponding controllers to cooperate in fulfilling the user's desired control requirements.

[0064] Furthermore, in-vehicle sensing devices can also identify the user's desired steering angle based on the amplitude of the user's gestures, enabling more precise control.

[0065] In this way, through the recognition of the vehicle's sensing devices, after the engine is turned off and the power is cut off, the user does not need to return to the car to restart the vehicle and manually turn the steering wheel. The user can achieve the control needs through gesture operation outside the car, which greatly improves the user experience and efficiency.

[0066] Please see Figure 2 , Figure 2This is a schematic diagram illustrating the connection between an in-vehicle sensing device and an intelligent driving domain controller, as provided in an embodiment of this application.

[0067] like Figure 2 As shown, in the existing technology, ordinary non-smart cameras are used to send the captured image data to the A core (high computing power core) of the intelligent driving domain controller via video cable, and the intelligent driving domain controller performs recognition and judgment. Although this method can recognize operation gestures, it requires the A core to be in working mode, which leads to higher power consumption and waste in "small scenarios" such as small wheel steering.

[0068] In this embodiment, the vehicle-mounted sensing device can independently recognize gesture operations and generate control signals. Therefore, after power failure and engine shutdown, the "small scenario" requirement of slightly turning the wheels only requires the vehicle-mounted sensing device to remain in working state, but does not require the A core (high-performance core) of the domain controller to be in working mode. The power consumption of the vehicle-mounted sensing device is obviously less than that of the high-performance core, thereby achieving the purpose of reducing power consumption.

[0069] S103, The vehicle-mounted sensing device sends the steering control signal to the target controller in the vehicle controller to wake up the target controller.

[0070] The target controller refers to the controller necessary for the user's steering scenario indicated by the gesture operation, that is, the controller necessary for the vehicle controller to realize the steering control intention reflected by the user's gesture operation. When waking up the target controller using a control signal, it can be implemented based on existing wake-up protocols, such as the Autosar network management specification and the OSEK network management specification, etc., and this application embodiment does not impose any limitations.

[0071] In one possible implementation, step S103 may include:

[0072] S1031. The vehicle-mounted sensing device sends the steering control signal to the body controller to wake up the body controller. S1032. The body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered. S1033. The vehicle-mounted sensing device determines the controller to be powered based on the steering control signal and sends the steering control signal to the controller to be powered to wake up the controller.

[0073] Please see Figure 3 , Figure 3 This is a schematic diagram of a vehicle-mounted sensing device waking up a target controller, provided in an embodiment of this application.

[0074] The Body Control Controller (BCM) is responsible for the vehicle's power supply management. Upon receiving a steering control signal, the BCM determines the controller requiring power and supplies it with power. This controller is the target controller, essential for the user's steering actions indicated by the gesture. Similarly, the onboard sensing equipment identifies the controller requiring power based on the steering control signal and sends the steering control signal to it to activate it, enabling the controller to then perform steering based on the received steering control signal.

[0075] More specifically, in the user steering scenario of this application embodiment, the power supply controller includes at least one or more of the following: Electronic Power Steering Controller (EPS) (directly responsible for controlling steering), Electronic Stability Controller (ESC) (responsible for identifying the vehicle's stationary state), Electronic Parking Controller (EPB) (responsible for identifying the handbrake's state), and Vehicle Power Control Unit (MDCU) (responsible for identifying the power and gear status). In some cases, the above-mentioned power supply controllers need to cooperate with each other to perform vehicle steering.

[0076] In one possible implementation, the method by which the body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered in step S1032 may include:

[0077] The first method: The body controller determines the scene power supply group corresponding to the user steering scenario indicated by the steering control signal, and determines the controller in the scene power supply group as the controller to be powered.

[0078] Please see Figure 4 , Figure 4 This is one of the power supply diagrams for a vehicle body controller provided in an embodiment of this application. For example... Figure 4 As shown, the vehicle controller is pre-divided into multiple scenario power supply groups, such as scenario power supply group 1 and scenario power supply group 2. Simultaneously, the KL15 power supply, originally providing power to the entire vehicle, is also divided into several groups, allowing power supply to be implemented according to business needs. Specific division criteria include: pre-dividing into multiple scenario power supply groups according to different application scenarios; for example, scenario power supply group 1 corresponds to the user turning scenario. Alternatively, in addition to application scenarios, the current carrying capacity of the fuses must also be considered, i.e., pre-dividing multiple scenario power supply groups by comprehensively considering different application scenarios and fuse current distribution. In this way, on-demand power supply can be achieved through the control of the vehicle body controller without increasing wiring harness costs.

[0079] Alternatively, in the second approach: the body controller identifies each controller corresponding to the user steering scenario indicated by the steering control signal as the controller to be powered, and controls the power control line corresponding to each controller to individually control and supply power to each controller.

[0080] This approach equips the controller to be powered with a corresponding power control line, achieving the effect of independent power module power supply. Although it increases the cost of wiring harnesses, it provides the most flexible power supply options. In practical implementation, it can also combine power supplies for some lower-power devices to save on wiring harness costs.

[0081] Furthermore, the method by which the vehicle-mounted sensing device sends the steering control signal to any controller includes:

[0082] If the vehicle-mounted sensing device supports CAN communication, the steering control signal is sent directly to the controller; if the vehicle-mounted sensing device only supports LIN or serial communication, the steering control signal is sent to the real-time kernel of the intelligent driving domain controller; the real-time kernel converts the steering control signal into a CAN communication signal and forwards it to the controller.

[0083] Please return to the reference. Figure 2 and Figure 3 ,like Figure 2 and Figure 3 As shown, this application embodiment improves the communication method of the vehicle-mounted sensing device. The first improvement involves adding a communication interface 1 to the real-time kernel M core of the intelligent driving domain controller on the vehicle-mounted sensing device, enabling it to support LIN or serial communication. The second improvement involves adding a communication interface 2 to the CAN bus on the vehicle-mounted sensing device, enabling it to support CAN communication. Accordingly, when the vehicle-mounted sensing device (camera) developed in this application embodiment supports CAN communication, the steering control signal can be directly sent to the corresponding controller via a gateway. In this mode, the vehicle-mounted sensing device can independently complete communication with the controller without the need for the cooperation of components such as the vehicle communication module. Therefore, the corresponding components can remain in a powered-off state, reducing power consumption. Furthermore, if the vehicle-mounted sensing device (camera) developed in this application embodiment supports traditional LIN or serial communication, and the implementation cost of such a camera is low, the optional communication method is: the steering control signal needs to be sent to the real-time kernel M core of the intelligent driving domain controller, converted by the M core into CAN communication, and then forwarded to the corresponding controller.

[0084] S104. The target controller controls the steering actuator to perform a steering action according to the control signal, and re-enters the sleep state after the action is completed.

[0085] For example, the steering actuator can be a motor. The target controller drives the motor to rotate according to the control signal, and the motor drives the steering actuator to achieve steering.

[0086] After the turn is completed, the awakened target controller re-enters sleep mode to reduce power consumption, until it is awakened again by a control signal sent by the on-board sensing device or receives other vehicle start signals.

[0087] Furthermore, the control method also includes:

[0088] The system detects whether the vehicle battery charge is higher than a preset safety threshold. If it is higher, the battery is used to power the vehicle-mounted sensing device, the body controller, and the controller to be powered. If it is not higher, the power battery is activated to power the vehicle-mounted sensing device, the body controller, and the controller to be powered.

[0089] Please see Figure 5 , Figure 5 This is a second schematic diagram of the power supply for a vehicle body controller provided in an embodiment of this application. For example... Figure 5 As shown, KL15 represents the vehicle power supply, i.e., the power battery power supply mode; KL30 represents the storage battery power supply mode.

[0090] The specific safety threshold can be set according to the vehicle model and safety requirements, such as 20%. Therefore, in scenarios where the vehicle is turned off and power is cut off, and the user controls steering using gestures, if the vehicle battery charge is higher than the preset safety threshold (20%), the main battery can be left unactivated, and only the battery power can be used. The main battery will only be activated when the vehicle battery charge is below the preset safety threshold. This is because the conditions for activating the main battery are much more stringent than those for the battery power, while the battery's safety depends on fewer conditions, allowing for greater flexibility in subsequent functional upgrades. Activating the battery poses fewer safety risks, helping to ensure vehicle safety during power outages and without affecting the user's driving range.

[0091] This application provides a vehicle control method after the engine is turned off, comprising: in response to a vehicle power-off command, an on-board sensing device remains operational while the vehicle controller enters a sleep state; when the on-board sensing device detects a user's gesture operation, it generates a steering control signal corresponding to the gesture operation; the on-board sensing device sends the steering control signal to a target controller in the vehicle controller to wake up the target controller; wherein, the target controller refers to a controller necessary in the user steering scenario indicated by the gesture operation; the target controller controls the steering actuator to perform a steering action according to the control signal, and re-enters the sleep state after the action is completed.

[0092] In this way, after the vehicle is turned off and power is cut off, if the onboard sensing device recognizes a hand gesture indicating steering, it will wake up the necessary controller for steering. After the necessary controller controls the steering actuator to complete the steering action, it will return to sleep mode. In this way, the vehicle can still meet the user's needs for minor steering scenarios even after the vehicle is turned off, while providing power to the target controller in the vehicle controller on demand, enabling it to operate on demand, thereby reducing the vehicle's energy consumption and extending the driving range.

[0093] Please see Figure 6 , Figure 6 This is a schematic diagram of a vehicle control system provided in an embodiment of this application after the engine is turned off. Figure 6 As shown, the control system 600 includes: an on-board sensing device 610 and a vehicle controller 620;

[0094] The vehicle-mounted sensing device 610 is used to maintain its working state in response to the vehicle's power-off command;

[0095] The vehicle controller 620 is configured to enter a sleep state in response to the vehicle's power-off command;

[0096] The vehicle-mounted sensing device 610 is used to generate a steering control signal corresponding to the user's gesture operation when the user's gesture operation is detected.

[0097] The vehicle-mounted sensing device 610 is used to send the steering control signal to the target controller 630 in the vehicle controller 620 to wake up the target controller 630; wherein, the target controller 630 refers to the controller necessary in the user steering scenario indicated by the gesture operation;

[0098] The target controller 630 is used to control the steering actuator to perform steering actions according to the control signal, and to re-enter the sleep state after the actions are completed.

[0099] Furthermore, the on-board sensing device 610 is used to send the steering control signal to the target controller 630 in the vehicle controller 620 to wake up the target controller 630, including:

[0100] The vehicle-mounted sensing device 610 sends the steering control signal to the body controller to wake up the body controller;

[0101] The body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered.

[0102] The vehicle-mounted sensing device 610 determines the power supply controller based on the steering control signal and sends the steering control signal to the power supply controller to wake it up.

[0103] Furthermore, in the user steering scenario, the controller to be powered includes at least one or more of the following: electronic power steering controller EPS, electronic stability controller ESC, electronic parking brake controller EPB, and vehicle power control unit MDCU.

[0104] Furthermore, the body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered, including:

[0105] The vehicle controller determines the scene power supply group corresponding to the user steering scenario indicated by the steering control signal, and identifies the controller in the scene power supply group as the controller to be powered; wherein, the vehicle controller 620 is pre-divided into multiple scene power supply groups according to different application scenarios; or, the vehicle controller 620 is pre-divided into multiple scene power supply groups based on different application scenarios and the direction of fuse current distribution.

[0106] Alternatively, the body controller may identify each controller corresponding to the user steering scenario indicated by the steering control signal as the controller to be powered; and control the power control line corresponding to each controller to be powered individually to control the power supply of each controller to be powered.

[0107] Furthermore, the body controller is used for:

[0108] Check whether the vehicle battery charge is higher than a preset safety threshold;

[0109] If the power is higher, a storage battery is used to power the vehicle-mounted sensing device 610, the body controller, and the controller to be powered.

[0110] If the power level is not higher, the power battery will be activated to supply power to the vehicle-mounted sensing device 610, the body controller, and the controller to be powered.

[0111] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application. Figure 7 As shown, the vehicle 700 includes a processor 710, a memory 720, and a bus 730.

[0112] The memory 720 stores machine-readable instructions executable by the processor 710. When the vehicle 700 is running, the processor 710 communicates with the memory 720 via the bus 730. When the machine-readable instructions are executed by the processor 710, they can perform the operations described above. Figure 1The steps of a vehicle control method after engine shutdown shown in the method embodiment are described in detail in the method embodiment, and will not be repeated here.

[0113] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1 The steps of a vehicle control method after engine shutdown shown in the method embodiment are described in detail in the method embodiment, and will not be repeated here.

[0114] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0115] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0116] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0117] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0118] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0119] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, 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 this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A control method for a vehicle after it is turned off, characterized in that, The control method includes: In response to the vehicle shutdown and power-off command, only the on-board sensing equipment remains active, while the vehicle controller enters a sleep state. When the vehicle-mounted sensing device recognizes a user's gesture, it generates a steering control signal corresponding to the gesture. The vehicle-mounted sensing device is a smart camera, and the camera chip has a deep learning model for gesture recognition embedded in it. The vehicle-mounted sensing device independently recognizes the gesture and generates the steering control signal. The vehicle-mounted sensing device sends the steering control signal to the target controller in the vehicle controller to wake up the target controller; wherein, the target controller refers to the controller necessary in the user steering scenario indicated by the gesture operation; The target controller controls the steering actuator to perform steering actions according to the steering control signal, and returns to the sleep state after the action is completed. Through the recognition of the vehicle-mounted sensing device, after the engine is turned off and the power is cut off, the user does not need to return to the vehicle to restart it and manually steer. The user can achieve the control of small wheel steering through gesture operation outside the vehicle.

2. The control method according to claim 1, characterized in that, The on-board sensing device sends the steering control signal to the target controller in the vehicle controller to wake up the target controller, including: The on-board sensing device sends the steering control signal to the body controller to wake up the body controller; The body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered. The vehicle-mounted sensing device determines the power supply controller based on the steering control signal and sends the steering control signal to the power supply controller to wake it up.

3. The control method according to claim 2, characterized in that, In the user steering scenario, the controller to be powered includes at least one or more of the following: electronic power steering controller EPS, electronic stability controller ESC, electronic parking brake controller EPB, and vehicle power control unit MDCU.

4. The control method according to claim 2, characterized in that, The body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered, including: The vehicle controller determines the scene power supply group corresponding to the user steering scenario indicated by the steering control signal, and identifies the controller in the scene power supply group as the controller to be powered; wherein, the vehicle controller is pre-divided into multiple scene power supply groups according to different application scenarios; or, the vehicle controller is pre-divided into multiple scene power supply groups based on different application scenarios and the direction of fuse current distribution. Alternatively, the body controller may identify each controller corresponding to the user steering scenario indicated by the steering control signal as the controller to be powered; and control the power control line corresponding to each controller to be powered individually to control the power supply of each controller to be powered.

5. The control method according to claim 4, characterized in that, The control method further includes: Check whether the vehicle battery charge is higher than a preset safety threshold; If the power is higher, then a battery is used to power the vehicle-mounted sensing device, the body controller, and the controller to be powered. If the power level is not higher, the power battery will be activated to supply power to the vehicle-mounted sensing device, the body controller, and the controller to be powered.

6. The control method according to claim 1 or 2, characterized in that, The method by which the on-board sensing device sends the steering control signal to any controller includes: If the vehicle-mounted sensing device supports CAN communication, the steering control signal will be sent directly to the controller. If the vehicle-mounted sensing device only supports LIN or serial communication, the steering control signal is sent to the real-time kernel of the intelligent driving domain controller; the real-time kernel converts the steering control signal into a CAN communication signal and forwards it to the controller.

7. A control system for a vehicle after it is turned off, characterized in that, The control system includes: on-board sensing equipment and vehicle controller; Only the aforementioned vehicle-mounted sensing device is used to maintain its working state in response to the vehicle's power-off command; The vehicle controller is configured to enter a sleep state in response to the vehicle's power-off command; The vehicle-mounted sensing device is used to generate a steering control signal corresponding to a user's gesture operation when the user's gesture operation is detected; wherein, the vehicle-mounted sensing device is a smart camera, and the camera chip has a deep learning model for gesture recognition embedded in it; the vehicle-mounted sensing device independently recognizes the gesture operation and generates the steering control signal; The vehicle-mounted sensing device is used to send the steering control signal to a target controller in the vehicle controller to wake up the target controller; wherein, the target controller refers to the controller necessary in the user steering scenario indicated by the gesture operation; The target controller is used to control the steering actuator to perform steering actions according to the steering control signal, and to re-enter the dormant state after the action is completed. This allows the user to control the wheels slightly without having to return to the vehicle to restart it and manually steer after the engine is turned off and the power is cut off, thanks to the recognition of the vehicle-mounted sensing device.

8. The control system according to claim 7, characterized in that, The on-board sensing device is used to send the steering control signal to a target controller in the vehicle controller to wake up the target controller, including: The on-board sensing device sends the steering control signal to the body controller to wake up the body controller; The body controller determines the controller to be powered based on the steering control signal and supplies power to the controller to be powered. The vehicle-mounted sensing device determines the power supply controller based on the steering control signal and sends the steering control signal to the power supply controller to wake it up.

9. A vehicle, characterized in that, include: The system includes a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the vehicle is in operation, the processor communicates with the memory via the bus. The machine-readable instructions are executed by the processor to perform the steps of a control method for a vehicle after it is turned off, as described in any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, performs the steps of a control method for a vehicle after it is turned off, as described in any one of claims 1 to 6.

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