Vehicle control method and device, vehicle and storage medium

Abstract

The embodiment of the invention relates to a vehicle control method and device, a vehicle and a storage medium, under the condition that the electric quantity of a vehicle-mounted main power source of the vehicle is smaller than an electric quantity threshold value, a circuit between a vehicle domain controller of the vehicle and a super-capacitor module is controlled to be conducted, and the super-capacitor module is connected with a vehicle-mounted energy storage module of the vehicle; under the condition that the vehicle-mounted energy storage module receives the charging operation of the external charging device, the vehicle-mounted energy storage module is controlled to charge the super-capacitor module, so that the super-capacitor module supplies power to the vehicle domain controller; and under the condition that the vehicle domain controller receives the unlocking signal for the vehicle, the vehicle is controlled to be unlocked. Therefore, circuits of the vehicle domain controller and the super capacitor module can be automatically switched on when the vehicle-mounted main power supply is low in electric quantity, an external charging device can charge the super capacitor module through the vehicle-mounted energy storage module, and then power is supplied to the vehicle domain controller so that the vehicle domain controller can receive an unlocking signal to unlock a vehicle door. And finally, non-destructive unlocking and convenient charging of the vehicle with serious power shortage are realized.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicle technology, and in particular to a vehicle control method, device, vehicle and storage medium. Background Technology

[0002] As new energy vehicles rapidly evolve towards digitalization and intelligence, automakers are gradually phasing out traditional mechanical keys and adopting fully electronic door lock systems in new model development in pursuit of ultimate exterior design and ultra-low drag coefficients to enhance product competitiveness. This design optimization effectively simplifies the vehicle's external structure, reduces wind resistance losses, and aligns with the technological development needs and market aesthetic trends of new energy vehicles.

[0003] However, while eliminating the traditional mechanical key brings many advantages, it also exposes shortcomings in extreme operating conditions. When both the vehicle's main battery and 12V battery are severely depleted, the fully electronic door locking system loses power and cannot respond to unlocking commands, rendering the doors unable to open. In this situation, the user cannot enter the vehicle or perform any power restoration operations. Solving this problem often requires damaging the vehicle's structure, causing significant inconvenience and financial loss to the user.

[0004] Existing technologies lack emergency unlocking and recharging solutions for keyless new energy vehicles when the battery is low. It is impossible to safely and conveniently unlock the doors and recharge the vehicle when the battery is severely depleted and there is no external power supply interface available. Therefore, the urgent technical problem to be solved is the inability to open the doors and recharge the vehicle when the battery is severely depleted. Summary of the Invention

[0005] In view of this, in order to solve the above-mentioned technical problems or some of the technical problems, the present invention provides a vehicle control method, device, vehicle and storage medium.

[0006] In a first aspect, embodiments of the present invention provide a vehicle control method, comprising: When the power of the vehicle's main power supply is less than the power threshold, the circuit between the vehicle's domain controller and the supercapacitor module is turned on. The supercapacitor module is connected to the vehicle's on-board energy storage module. The main power supply is used to power the entire vehicle under normal operating conditions. The on-board energy storage module is used to supply power to the vehicle domain controller by receiving external power when the main power supply cannot provide power. When the on-board energy storage module receives a charging operation from an external charging device, the on-board energy storage module is controlled to charge the supercapacitor module so that the supercapacitor module supplies power to the vehicle domain controller. When the vehicle domain controller receives an unlock signal for the vehicle, it controls the vehicle to unlock.

[0007] In one possible implementation, the step of controlling the circuit connection between the vehicle domain controller and the supercapacitor module when the power of the vehicle's onboard main power supply is less than a power threshold includes: Upon receiving a low battery signal from the vehicle's main power supply, it is determined that the battery level of the vehicle's main power supply is less than a battery threshold. The vehicle domain controller is controlled to output a closed signal to the circuit control module, so that the circuit control module performs a closing action according to the closed signal to connect the circuit between the vehicle domain controller and the supercapacitor module. The vehicle domain controller and the supercapacitor module are connected through the circuit control module.

[0008] In one possible implementation, after controlling the vehicle to unlock, the method further includes: After receiving a power replenishment operation for the vehicle main power supply, the system controls the vehicle main power supply to send power to the vehicle domain controller. When the battery level is greater than or equal to a battery threshold, the vehicle domain controller is controlled to output a disconnect signal to the circuit control module, so that the circuit control module performs a disconnection action according to the disconnect signal to disconnect the circuit between the vehicle domain controller and the supercapacitor module.

[0009] In one possible implementation, the step of enabling the supercapacitor module to supply power to the vehicle domain controller includes: During the power supply process, the operating status signals of the vehicle domain controller are collected in real time; When the operating status signal indicates that the vehicle domain controller is in the sleep-wake phase, the output power of the supercapacitor is controlled to be the first power supply power. When the working status signal indicates that the vehicle domain controller is in the instruction processing stage, the output power of the supercapacitor is controlled to be the second power supply power, which is less than the first power supply power. When the working status signal indicates that the vehicle domain controller is in the unlock command issuance stage, the output power of the supercapacitor is controlled to be a third power supply power, which is greater than the first power supply power.

[0010] In one possible implementation, the step of enabling the supercapacitor module to supply power to the vehicle domain controller includes: After the supercapacitor module reaches the power supply threshold, a unidirectional power supply path is established to enable the supercapacitor module to supply power to the vehicle domain controller and to block the reverse energy flow from the direction of the vehicle domain controller.

[0011] In one possible implementation, the method further includes: Before the on-board energy storage module receives a charging operation from an external charging device, it receives device characteristic information sent by the external charging device. Determine whether the external charging device is an authorized device based on the device feature information; If it is determined that the external charging device is an authorized device, the on-board energy storage module is allowed to receive the charging operation of the external charging device; If it is determined that the external charging device is not an authorized device, the vehicle-mounted energy storage module shall be prohibited from entering the charging state.

[0012] In a second aspect, embodiments of the present invention provide a vehicle control system for implementing the method described in the first aspect above, the system comprising: Vehicle main power supply, vehicle domain controller, supercapacitor module, vehicle energy storage module, circuit control module; The vehicle main power supply is used to send a low power signal to the vehicle domain controller when the power level is less than a power threshold. The vehicle domain controller is used to send a closing signal to the circuit control module based on the low battery signal, so that the circuit control module performs a closing action, thereby enabling the vehicle domain controller to conduct with the supercapacitor module. The on-board energy storage module is used to charge the supercapacitor module when receiving a charging operation from an external charging device. The supercapacitor module is used to receive charging from the on-board energy storage module and then supply power to the vehicle domain controller. The vehicle domain controller is also configured to control the vehicle to unlock upon receiving an unlock signal for the vehicle.

[0013] Thirdly, embodiments of the present invention provide a vehicle control device, comprising: The first control module is used to control the circuit between the vehicle domain controller and the supercapacitor module to be connected when the power of the vehicle's on-board main power supply is less than a power threshold. The supercapacitor module is connected to the vehicle's on-board energy storage module. The second control module is used to control the on-board energy storage module to charge the supercapacitor module when the on-board energy storage module receives a charging operation from an external charging device, so that the supercapacitor module supplies power to the vehicle domain controller. The third control module is used to control the vehicle to unlock when the vehicle domain controller receives an unlock signal for the vehicle.

[0014] Fourthly, embodiments of the present invention provide a vehicle, including: a processor and a memory, wherein the processor is configured to execute a vehicle control program stored in the memory to implement the vehicle control method described in any one of the first aspects above.

[0015] Fifthly, embodiments of the present invention provide a storage medium storing one or more programs, which can be executed by one or more processors to implement the vehicle control method described in any one of the first aspects.

[0016] The vehicle control scheme provided in this invention automatically connects the vehicle domain controller and the supercapacitor module when the vehicle's main power supply is below a threshold. The supercapacitor module is connected to the vehicle's onboard energy storage module. When the onboard energy storage module receives a charging operation from an external charging device, it charges the supercapacitor module, enabling the supercapacitor module to supply power to the vehicle domain controller. When the vehicle domain controller receives an unlock signal for the vehicle, it unlocks the vehicle. Thus, when the main power supply is low, the circuit between the vehicle domain controller and the supercapacitor module is automatically activated. An external charging device can charge the supercapacitor module through the onboard energy storage module, thereby supplying power to the vehicle domain controller to receive the unlock signal and unlock the doors. This ultimately enables non-destructive unlocking and convenient recharging of severely depleted vehicles. Attached Figure Description

[0017] Figure 1 This is a flowchart illustrating a vehicle control method provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a vehicle control system provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of another vehicle control system provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a vehicle control device provided in an embodiment of the present invention; Figure 5 This is a structural schematic diagram of a vehicle provided in an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 embodiments of the present invention, not all embodiments. 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.

[0019] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of the present invention.

[0020] Figure 1 This is a flowchart illustrating a vehicle control method provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the method specifically includes: S11. When the power of the vehicle's main power supply is less than the power threshold, the circuit between the vehicle domain controller and the supercapacitor module is turned on, and the supercapacitor module is connected to the vehicle's on-board energy storage module.

[0021] The vehicle control method provided in this invention is applied to new energy vehicles. The executing entity is the vehicle domain controller, and it is suitable for new energy vehicles without traditional mechanical keys, in scenarios where the power battery is low and the doors cannot be unlocked normally. Specifically, when the vehicle's main power supply is low, the circuit between the vehicle domain controller and the supercapacitor module is automatically activated. An external charging device can charge the supercapacitor module through the vehicle's energy storage module, thereby supplying power to the vehicle domain controller so that it can receive the unlocking signal to unlock the doors. In this embodiment, the vehicle's main power supply refers to the vehicle's power battery, which provides the primary energy for normal vehicle operation and the operation of the electronic control system. The power threshold is a preset low-power threshold (e.g., 1%), which is the criterion for triggering the emergency circuit. This threshold is calibrated by the automaker based on battery characteristics and the minimum operating requirements of the electronic control system. When the power level falls below the threshold, the vehicle is depleted and cannot be unlocked. The vehicle domain controller is the core control unit of the vehicle's electronic control system, responsible for receiving signals from various modules, sending control commands, and managing functions such as door unlocking and circuit switching. The supercapacitor module is an energy storage element with fast charging speed and high power density, used to quickly power the vehicle domain controller in emergency scenarios. The on-board energy storage module is a battery module integrated into the vehicle's rearview mirror (e.g., the left rearview mirror). It serves as a relay energy storage unit for emergency charging, receiving external wireless charging and supplying power to the supercapacitor module.

[0022] Specifically, the vehicle's main power supply has a built-in power monitoring module that collects the remaining power in real time and continuously sends the data to the vehicle domain controller. The vehicle domain controller compares the received real-time power data with a preset power threshold. When the remaining power of the main power supply is less than the threshold, the vehicle enters a critical power shortage warning state. The circuit between the vehicle domain controller and the supercapacitor module is then activated; since the supercapacitor module and the vehicle energy storage module are pre-connected, the supercapacitor module can receive power input from the vehicle energy storage module at any time.

[0023] In one possible implementation, upon receiving a low-battery signal from the vehicle's main power supply, it is determined that the battery level of the main power supply is less than a power threshold. The vehicle domain controller is then controlled to output a closed signal to the circuit control module, causing the circuit control module to perform a closing action based on the closed signal, thereby connecting the circuit between the vehicle domain controller and the supercapacitor module. The vehicle domain controller and the supercapacitor module are connected through the circuit control module.

[0024] In this embodiment, the power detection unit of the vehicle main power supply collects the remaining power in real time. When the power drops below the power threshold, it sends a low power signal to the vehicle domain controller. After receiving the signal, the vehicle domain controller confirms through its built-in judgment program that the power of the vehicle main power supply is less than the power threshold and triggers subsequent control logic.

[0025] Based on the above determination, the vehicle domain controller outputs a closed signal to the circuit control module. This circuit control module is a dedicated on / off control element between the vehicle domain controller and the supercapacitor module; the circuit connection between the two is achieved through the action of this module. After receiving the closed signal, the circuit control module executes the closing action of its internal switch, completing the circuit connection between the vehicle domain controller and the supercapacitor module. At this time, the emergency power supply link is in a ready state, and the supercapacitor module can subsequently supply power to the vehicle domain controller after receiving electrical energy.

[0026] S12. When the on-board energy storage module receives a charging operation from an external charging device, control the on-board energy storage module to charge the supercapacitor module so that the supercapacitor module can supply power to the vehicle domain controller.

[0027] In this embodiment, the external energy storage module is a user-provided mobile energy storage device with power output capabilities, not a factory-installed vehicle component. Its core function is to provide emergency charging power to the onboard energy storage module. Common types include smartphones with wireless reverse charging capabilities, portable wireless power banks, and dedicated onboard emergency wireless charging boxes. These devices must support wireless charging protocols compatible with the onboard energy storage module, and their output power must meet the charging requirements of the onboard energy storage module (e.g., 5-10W).

[0028] External charging devices (such as reverse-charging phones) have low output power and unstable power supply, and wireless charging inherently suffers from energy loss. Supercapacitors are characterized by fast charging speed but low energy density. If they are directly charged by external devices, the low power output of the external devices is insufficient to charge the supercapacitor with enough power to drive the vehicle domain controller in a short time, causing the unlocking process to time out and fail. The on-board energy storage module, as a dedicated relay unit, can first receive and store the scattered power from the external charging device, and then charge the supercapacitor module with a stable voltage and current, playing a role in energy buffering and voltage stabilization.

[0029] The vehicle domain controller is the core of the vehicle's electronic control system, requiring extremely high stability and purity of its power supply voltage and current. Direct connection to an unstable external power source is strictly prohibited. The supercapacitor module provides instantaneous high-power supply and stable voltage output. It can quickly store the electrical energy from the onboard energy storage module and then supply power to the vehicle domain controller at a stable power level, ensuring that the unlocking process is completed in one go. At the same time, the discharge characteristics of the supercapacitor can match the instantaneous power consumption requirements of the domain controller, avoiding energy waste.

[0030] Therefore, this embodiment, through the layered design of the on-board energy storage module and the supercapacitor module, essentially transforms unstable external charging into stable internal power supply. This not only solves the problem of convenience for users in emergency operations but also ensures the safety and reliability of the vehicle's electronic control system, avoiding the defects of low efficiency, high risk, and poor adaptability caused by direct charging.

[0031] Specifically, if a vehicle cannot be unlocked due to a severe depletion of its main power supply, the user should remove an external energy storage module (such as a phone with reverse wireless charging enabled). Check the charging area (the factory-preset wireless charging induction area) marked on the exterior rearview mirror (e.g., the left rearview mirror), place the external energy storage module firmly against the charging area, ensuring the wireless charging coils are aligned to establish an energy transfer link.

[0032] The external energy storage module outputs electrical energy via wireless induction. After the wireless receiving coil of the vehicle-mounted energy storage module senses the electrical energy, it activates the charging management logic to convert the received electrical energy into a voltage level compatible with the supercapacitor module (e.g., 12V). The vehicle-mounted energy storage module has a built-in overcharge protection unit to prevent damage to the module due to excessive received electrical energy, while ensuring the stability of the output electrical energy.

[0033] The on-board energy storage module and the supercapacitor module are directly connected via a pre-set hard-wired circuit (maintaining continuity under normal conditions) without the need for additional control commands. Once the on-board energy storage module has received electrical energy and reached the preset output conditions, it automatically releases electrical energy to the supercapacitor module, initiating the charging process. The supercapacitor module has fast charging capabilities, completing energy storage in just a few seconds.

[0034] Once the supercapacitor module is fully charged, it immediately outputs stable power to the vehicle domain controller, as the circuit between the supercapacitor and the vehicle domain controller has already been established via the circuit control module. Upon receiving the power, the vehicle domain controller is awakened from its sleep state, completes its initialization self-test, and gains the ability to receive key unlocking signals and send door lock control commands, laying the foundation for subsequent unlocking actions.

[0035] In one possible implementation, enabling the supercapacitor module to power the vehicle domain controller includes: During power supply, the operating status signal of the vehicle domain controller is collected in real time. When the operating status signal indicates that the vehicle domain controller is in the sleep-wake-up stage, the output power of the supercapacitor is controlled to be the first power supply power. When the operating status signal indicates that the vehicle domain controller is in the instruction processing stage, the output power of the supercapacitor is controlled to be the second power supply power, which is less than the first power supply power. When the operating status signal indicates that the vehicle domain controller is in the unlock instruction issuance stage, the output power of the supercapacitor is controlled to be the third power supply power, which is greater than the first power supply power.

[0036] In this embodiment, the operating status signal refers to the status identification electrical signal output by the vehicle domain controller at different operating stages, including three types: sleep / wake-up signal, command calculation signal, and unlock command issuance signal, used to provide feedback on the real-time operating mode of the domain controller. The sleep / wake-up stage is the stage where the vehicle domain controller transitions from complete power-off sleep to power-on self-test and loading of basic programs. This stage requires instantaneous high-power triggering and is a critical stage for the domain controller to restore its operational capability. The command calculation stage is the stage where, after the vehicle domain controller completes wake-up, it receives the vehicle key unlock signal, performs authentication and logical operations. During this stage, power consumption is stable and at a low level. The unlock command issuance stage is the stage where, after the vehicle domain controller completes its calculations, it outputs drive commands to the door lock motor. This stage requires instantaneous peak power to support stable command issuance and prevent command transmission interruption.

[0037] The first power supply meets the instantaneous high power requirements during the sleep / wake-up phase, typically 1.2 to 1.5 times the wake-up threshold power of the vehicle domain controller. The second power supply meets the low power requirements during the instruction processing phase, with a power value of 0.6 to 0.8 times the first power supply, lower than the first power supply. The third power supply meets the peak power requirements during the unlock instruction issuance phase, with a power value of 1.1 to 1.3 times the first power supply, higher than the first power supply.

[0038] The supercapacitor module integrates a power control unit and a signal acquisition unit. The signal acquisition unit establishes a communication connection with the status output terminal of the vehicle domain controller to receive real-time operating status signals. The power control unit can adjust the output power of the supercapacitor based on the received signals. A unidirectional conducting element is connected in series in the circuit between the supercapacitor module and the vehicle domain controller to ensure unidirectional power transmission and prevent reverse energy flow from interfering with the power regulation logic. Before the vehicle leaves the factory, power parameter thresholds for different stages are calibrated through bench testing and stored in the power control unit of the supercapacitor module, forming a preset graded power supply strategy.

[0039] The supercapacitor module's signal acquisition unit collects the operating status signals output by the vehicle domain controller in real time and transmits the signals to the power control unit. The power control unit analyzes the signal characteristics through its built-in program to identify the current operating stage of the domain controller: if a sleep / wake-up signal (characterized by a pulse electrical signal of a specific frequency) is acquired, it is determined to be in the sleep / wake-up stage; if a command processing signal (characterized by a continuous and stable low-level signal) is acquired, it is determined to be in the command processing stage; if an unlock command issuance signal (characterized by a momentary high-level pulse signal) is acquired, it is determined to be in the unlock command issuance stage.

[0040] When the system is determined to be in the sleep / wake-up phase, the power control unit sends a power adjustment command to the supercapacitor module, controlling its output of the first power supply. This power is 1.2 to 1.5 times the wake-up threshold power of the vehicle domain controller, which can quickly power the main control chip and storage unit of the domain controller, trigger the self-test program, and ensure that the domain controller transitions from sleep to ready state in a short time. The wake-up threshold power is determined as follows: the low-voltage power supply system of mainstream new energy vehicles is a 12V DC architecture, and the wake-up threshold power of the vehicle domain controller is usually calculated based on this voltage level. The instantaneous operating current of the vehicle domain controller during wake-up is approximately 0.8 to 1.2A. Converted to 12V, the wake-up threshold power = voltage × current = 12V × (0.8~1.2) A = 9.6~14.4W.

[0041] Once the domain controller wakes up and enters the instruction processing phase, the signal acquisition unit acquires the instruction processing signals and transmits them to the power control unit. The power control unit immediately adjusts the output power, switching to the second power supply (0.6 to 0.8 times the first power supply). During this phase, the domain controller only performs signal parsing and logic operations; the low power output effectively conserves the energy stored in the supercapacitor, avoiding energy waste.

[0042] When the vehicle domain controller completes authentication and is ready to issue an unlock command, it outputs an unlock command issuance signal. Upon recognizing this signal, the power control unit immediately increases the output power to the third power supply level, typically 1.1 to 1.3 times the first power supply level. This peak power ensures that the unlock command is transmitted to the door lock motor with a stable current, preventing command loss or door lock motor drive failure due to insufficient power.

[0043] Once the door lock motor completes the unlocking action and sends an unlocking completion signal to the vehicle domain controller, the vehicle domain controller stops outputting operational status signals. The power control unit of the supercapacitor module detects the signal interruption and stops power output. When the vehicle domain controller detects that the main vehicle power supply has been restored, it sends a disconnect signal to the circuit control module, cutting off the emergency power supply link. This dynamic control logic, which enables status recognition and power adaptation, breaks through the traditional constant power output mode of emergency power supply. It ensures the operational needs of the vehicle domain controller at each stage while maximizing the utilization of the limited energy storage of the supercapacitor. Combined with the protective function of unidirectional conductive elements, it achieves a dual improvement in power supply efficiency and system safety.

[0044] In one possible implementation, controlling the on-board energy storage module to charge the supercapacitor module includes: The target pre-charge energy of the supercapacitor module is determined based on the real-time energy storage status of the on-board energy storage module, which is installed in the vehicle's exterior rearview mirror. When the real-time energy storage status reaches the energy release threshold corresponding to the target pre-charge energy, the on-board energy storage module is controlled to charge the supercapacitor module, and the charging rate is dynamically adjusted according to the voltage change of the supercapacitor module.

[0045] In this embodiment, the target pre-charge energy refers to the minimum energy storage required for the vehicle domain controller to complete at least one wake-up and remain operational for a preset period of time. The target pre-charge energy is the minimum energy storage required for the supercapacitor to drive the vehicle domain controller to complete the unlocking process. This target pre-charge energy matches the maximum output energy of the onboard energy storage module, ensuring sufficient and non-redundant energy supply.

[0046] The vehicle-mounted energy storage module is integrated into the vehicle's exterior rearview mirror. Its built-in power monitoring unit can collect its remaining power in real time as a real-time energy storage status.

[0047] With a preset energy release threshold, when the real-time energy storage status of the vehicle-mounted energy storage module reaches the energy release threshold, it can ensure that the vehicle-mounted energy storage module can still maintain a stable output at the minimum energy storage level after transferring energy to the supercapacitor module.

[0048] The control unit of the vehicle-mounted energy storage module compares the real-time energy storage status data with the energy release threshold corresponding to the target pre-charge energy; when the real-time energy storage status is greater than or equal to the energy release threshold, it is determined that the energy condition for charging the supercapacitor module is met, and the discharge control logic is triggered.

[0049] The onboard energy storage module initiates a discharge procedure, outputting electrical energy to the supercapacitor module. Simultaneously, the supercapacitor module's voltage detection unit provides real-time feedback on voltage changes. Based on this data, the onboard energy storage module's control unit dynamically adjusts the charging rate: when the supercapacitor voltage is low, a high-current fast-charging mode is used to quickly increase energy storage; when the voltage approaches the rated value, it automatically switches to a low-current trickle-charging mode to prevent overcharging damage. This achieves a balance between charging efficiency and module safety. When the supercapacitor module voltage reaches a preset value, confirming that the energy storage meets the target pre-charge energy, the onboard energy storage module stops discharging, completing emergency energy replenishment and ensuring the supercapacitor module has the capability to drive the vehicle's domain controller.

[0050] S13. When the vehicle domain controller receives an unlock signal for the vehicle, it controls the vehicle to unlock.

[0051] In this embodiment, the supercapacitor module has been charged through the on-board energy storage module and continuously supplies power to the vehicle domain controller, enabling the vehicle domain controller to complete wake-up and self-test, enter the signal receiving ready state, and recognize the unlocking signal issued by the car key.

[0052] When the user presses the unlock button on the car key, the key sends a wireless unlock command (containing vehicle authentication information to prevent accidental triggering) to the vehicle domain controller via radio frequency or Bluetooth. The vehicle domain controller's signal receiving unit captures this command, performs authentication, and initiates the unlock control logic upon successful authentication. Based on the verified unlock signal, the vehicle domain controller outputs a drive current and unlocking action command to the motor of any door lock (e.g., the left door lock). This command is a precise electrical signal control that directly triggers the door lock motor's execution logic.

[0053] After receiving a command from the vehicle domain controller, the door lock motor drives the internal gear mechanism to retract the latch. When the latch is completely disengaged from the latch, the door is unlocked, and the owner can directly pull the door handle to open the door. The door lock motor has a built-in position sensor and sends a completion feedback signal to the vehicle domain controller after unlocking. Upon receiving the feedback, the vehicle domain controller stops outputting drive current to the door lock motor, and the unlocking process ends.

[0054] In one possible implementation, after controlling the vehicle to unlock, the following is also included: After receiving a power replenishment operation from the vehicle's main power supply, the system controls the main power supply to send power to the vehicle domain controller. If the power level is greater than or equal to a power threshold, the system controls the vehicle domain controller to output a disconnect signal to the circuit control module, so that the circuit control module can perform a disconnection action according to the disconnection signal to disconnect the circuit between the vehicle domain controller and the supercapacitor module.

[0055] In this embodiment, after the vehicle is unlocked, it can be recharged. For example, the user can remove the vehicle's matching charging equipment (such as a portable emergency charger or a home charging station charging gun) or connect to the jumper cable of an external rescue vehicle. During the charging process, the vehicle's battery management system monitors the battery voltage, current, and temperature in real time to ensure charging safety. When the on-board main power supply (power battery) reaches a preset threshold (e.g., >3%) after recharging, it sends a power recovery signal to the vehicle domain controller, or sends the power level in real time. When the vehicle domain controller detects the power recovery signal, or determines that the received real-time power level is greater than the preset threshold, it immediately sends a disconnect signal to the circuit control module. The circuit control module executes the disconnect action, cutting off the emergency power supply link between the supercapacitor module and the vehicle domain controller, and the vehicle returns to the normal power supply mode. Alternatively, when the vehicle is unlocked, it sends a disconnect signal to the circuit control module, and the circuit control module executes the disconnect action. This avoids ineffective power consumption of the emergency energy storage unit, ensures the reliability of the next emergency use, prevents voltage fluctuations caused by the parallel connection of emergency power supply and normal power supply, protects the safety of electronic control components, and reduces the working time of the emergency module, extending its service life.

[0056] In one possible implementation, enabling the supercapacitor module to power the vehicle domain controller includes: After the supercapacitor module reaches the power supply threshold, a unidirectional power supply path is established to enable the supercapacitor module to supply power to the vehicle domain controller and to block the reverse energy flow from the direction of the vehicle domain controller.

[0057] In this embodiment, a unidirectional conducting element (e.g., a unidirectional electromagnetic contactor) is connected in series in the emergency power supply circuit (circuit control module) between the supercapacitor module and the vehicle domain controller. The conduction direction of this element is preset to allow only electrical energy to flow from the supercapacitor module to the vehicle domain controller. Simultaneously, based on the minimum wake-up power consumption and stable operating power consumption of the vehicle domain controller, a power supply threshold for the supercapacitor module is calibrated (i.e., the minimum electrical energy value that the supercapacitor needs to store, such as a voltage of 12.5V). The supercapacitor module has a built-in voltage / power detection unit that collects its own energy storage data in real time. When the on-board energy storage module charges the supercapacitor module to the preset power supply threshold, the detection unit sends a power-ready signal to the circuit control module. If a diode is used as a unidirectional conducting element: the diode has passive unidirectional conducting characteristics. When the voltage of the supercapacitor module reaches the power supply threshold and is higher than the sleep voltage of the vehicle domain controller, the diode automatically conducts in the forward direction, directly establishing a unidirectional path for the supercapacitor module to supply power to the vehicle domain controller. If a unidirectional electromagnetic contactor is used as a unidirectional conducting element: after receiving the power-ready signal, the circuit control module outputs a conduction command to the unidirectional electromagnetic contactor. After the contactor coil is energized, the forward contact is closed, opening only the power supply path from the supercapacitor module to the vehicle domain controller.

[0058] For diode components: When voltage fluctuations occur on the vehicle domain controller side (such as the voltage being higher than the supercapacitor voltage after the normal power supply is restored) or reverse current occurs, the diode automatically reverses to cut off, blocking the energy flow from the vehicle domain controller to the supercapacitor module, preventing the emergency power of the supercapacitor from being consumed by reverse flow, and at the same time avoiding reverse charging of the supercapacitor module by the normal power supply. For unidirectional contactor elements: the mechanical structure of the contactor only supports the closure of the forward contacts, and the reverse path is always in the open state. Even if the voltage on the vehicle domain controller side increases, it is impossible to form a reverse current loop, thus blocking the reverse energy flow at the hardware level.

[0059] After the unidirectional power supply path is established, the supercapacitor module outputs stable power to the vehicle domain controller, wakes up the domain controller and supports it in receiving, processing and sending unlocking commands; the blocking of the reverse energy flow ensures that all the power of the supercapacitor is used to drive the domain controller, avoiding diversion to other low-power modules in the vehicle, and ensuring that the unlocking process is completed in one go.

[0060] In one possible implementation, before the on-board energy storage module receives a charging operation from an external charging device, it receives device characteristic information sent by the external charging device; determines whether the external charging device is an authorized device based on the device characteristic information; if it is determined that the external charging device is an authorized device, the on-board energy storage module is allowed to receive the charging operation from the external charging device; if it is determined that the external charging device is not an authorized device, the on-board energy storage module is prohibited from entering the charging state.

[0061] In this embodiment, the vehicle-mounted energy storage module integrated into the vehicle's exterior rearview mirror has a built-in wireless communication unit (such as NFC, Bluetooth BLE, etc.) and an authentication chip. It has a pre-defined feature information database for authorized external charging devices, which may include, but is not limited to, the device model, unique identifier, and communication protocol version of the external charging device. Simultaneously, the external charging device must pre-store an identity feature code matching the vehicle-mounted energy storage module. When the user brings the external charging device close to the wireless charging sensing area of ​​the vehicle-mounted energy storage module, a short-range communication link is triggered, and the vehicle-mounted energy storage module actively sends an authentication request signal. After receiving the request, the external charging device sends its own device feature information (including a unique identifier, protocol version, power parameters, etc.) to the vehicle-mounted energy storage module through the communication unit. The control unit of the vehicle-mounted energy storage module compares the received device feature information with a preset feature information database and performs a judgment. If the feature information is completely consistent, the external charging device is determined to be an authorized device, a charging permission command is generated, the wireless charging receiving circuit of the vehicle-mounted energy storage module is activated, and the device enters the power receiving state. If the feature information is missing, mismatched, or shows signs of tampering, the external charging device is determined to be an unauthorized device, a charging prohibition command is generated, the wireless charging receiving circuit is kept in the disconnected state, and any charging requests are refused.

[0062] To prevent unauthorized devices from triggering charging through force, the onboard energy storage module is equipped with a dual protection mechanism. At the communication level, it only receives characteristic information from pre-authorized protocols, directly blocking signals from unfamiliar protocols. At the circuit level, when no charging permission command is received, the circuit between the charging receiving coil and the energy storage battery is disconnected, preventing energy transfer even if unauthorized devices are detected. This enhances the security of the emergency charging link, preventing malicious devices from obtaining vehicle data or damaging the onboard energy storage module and supercapacitor module through abnormal charging.

[0063] Figure 2 This invention provides a schematic diagram of the structure of a vehicle control system, used for implementation. Figure 1 The method described herein includes: The system comprises: a vehicle main power supply 21, a vehicle domain controller 22, a supercapacitor module 23, a vehicle energy storage module 24, and a circuit control module 25. The vehicle main power supply sends a low-battery signal to the vehicle domain controller when the battery level is below a threshold. The vehicle domain controller sends a closing signal to the circuit control module based on the low-battery signal, causing the circuit control module to perform a closing action, thus enabling the vehicle domain controller and the supercapacitor module to conduct. The vehicle energy storage module charges the supercapacitor module when receiving charging from an external charging device. The supercapacitor module supplies power to the vehicle domain controller after receiving charging from the vehicle energy storage module. The vehicle domain controller also controls the vehicle to unlock upon receiving an unlock signal for the vehicle.

[0064] In this embodiment, the vehicle's main power supply adopts a combination structure of a conventional power battery and a 12V auxiliary battery for new energy vehicles, with a built-in power monitoring unit (such as a voltage sensor). When the voltage of the 12V auxiliary battery is lower than 10.5V (corresponding to a power threshold of 3%~5%), it sends a low-level low-power signal to the vehicle domain controller. The vehicle domain controller uses an automotive-grade main control chip (such as the STM32 series), integrating a signal receiving unit and a command output unit. It can receive the low-power signal from the vehicle's main power supply and the wireless unlocking signal from the car key (such as RF signals or Bluetooth signals), and can output control signals to the circuit control module and drive commands to the door lock motor. The circuit control module uses an automotive-grade electromagnetic relay, whose input terminal is connected to the vehicle domain controller, and whose output terminal is connected to the vehicle domain controller and the supercapacitor module, respectively. When it receives a closed signal from the vehicle domain controller, the relay contacts close, connecting the power supply link. The on-board energy storage module uses a small lithium battery pack, integrating a charging interface or wireless charging receiver unit. It supports receiving power input from external charging devices (such as portable power banks). The output is connected to the supercapacitor module through a voltage regulator circuit to ensure stable output voltage. The supercapacitor module uses tantalum capacitors or electrolytic supercapacitors with a rated voltage of 12V and a capacity of 500F~1000F. It has fast charging characteristics, can quickly store energy after receiving power from the on-board energy storage module, and provide stable power to the vehicle domain controller. Specifically, after a vehicle has been parked for an extended period, when the onboard main power supply's charge level falls below a preset threshold, the power monitoring unit detects this and sends a low-charge signal to the vehicle domain controller. Upon receiving the low-charge signal, the vehicle domain controller immediately sends a closing signal to the circuit control module. Upon receiving this signal, the electromagnetic relay in the circuit control module energizes its coil, closing the contacts and establishing a power supply link between the vehicle domain controller and the supercapacitor module. When the user connects an external charging device to the onboard energy storage module, the module receives external power and charges the supercapacitor module through a voltage regulator circuit, rapidly storing energy. Once the supercapacitor module has completed energy storage, it supplies power to the vehicle domain controller through the established power supply link. After receiving stable power, the vehicle domain controller wakes up from its sleep state, completes initialization, and enters a signal receiving ready state. When the user operates the car key to send an unlock signal, the vehicle domain controller receives this signal and outputs an unlock drive command to the vehicle's door lock motor. The door lock motor then retracts the latch, unlocking the vehicle. The vehicle control system provided in this embodiment allows users to trigger emergency power supply and unlocking simply by charging the on-board energy storage module with an external charging device, without the need for professional rescue. The supercapacitor module has the characteristics of fast charging and stable power supply, which can ensure that the vehicle domain controller can be effectively woken up and execute the unlocking command, thus solving the problem of unlocking when the battery is low.

[0065] Figure 3This is a schematic diagram of another vehicle control system provided in an embodiment of the present invention, used for implementation. Figure 1 The method described herein includes: External wireless charging module 1 (with a mobile phone that can charge in reverse) is used to charge the battery module 2 located on the left rearview mirror when the vehicle is severely depleted of power. Battery module 2 is used to receive charging from an external wireless charging module when the vehicle is severely depleted of power, and to provide power to supercapacitor 3. Supercapacitor 3 is used to receive power from the battery module located on the left rearview mirror and then power the circuit control module 4 and the vehicle domain controller 7. Circuit control module 4 is used to receive signals from the vehicle domain controller and perform opening and closing actions to connect or disconnect the circuit between the supercapacitor and the vehicle domain controller. Door lock motor 5 is used to perform locking and unlocking actions after receiving a door unlocking signal from the vehicle domain controller; Car key 6 is used to send an unlock / lock signal; The vehicle domain controller 7 receives the power signal from the power battery 8 and provides control signals for opening or closing the circuit control module; it also receives the unlocking / locking signal from the car key and provides an unlocking / locking signal to the left door lock motor. Power battery 8 is used to monitor and provide power battery charge signals to the vehicle domain controller.

[0066] When the battery is not depleted, the vehicle domain controller outputs a disconnect signal to the circuit control module. Upon receiving the disconnect signal, the circuit control module performs a disconnect action, breaking the circuit between the vehicle domain controller and the supercapacitor. When the vehicle experiences a battery depletion, and the battery charge drops to 1%, the battery sends a low charge signal to the vehicle domain controller. Upon receiving the low charge signal, the vehicle domain controller outputs a closed signal to the circuit control module, which then performs a closed action.

[0067] When a vehicle experiences severe battery depletion, rendering the doors unable to open, the owner uses an external wireless charging device to charge the battery module located on the left rearview mirror. The battery module in the left rearview mirror, receiving charging from the external wireless charging module, powers the supercapacitor. Once fully charged, the supercapacitor supplies power to the vehicle domain controller via the circuit control module. When the vehicle domain controller is powered on, it is activated and ready to receive signals from the key. The owner then uses the key to unlock the door. Upon receiving the unlock signal, the vehicle domain controller sends an unlock signal to the door lock motor. The door lock motor, upon receiving the signal from the vehicle domain controller, executes the unlocking action. After the door lock motor executes the unlocking action, the owner can open the door and recharge the vehicle. Once the battery level exceeds 3% after recharging, the vehicle domain controller sends a disconnect signal to the circuit control module. The circuit control module, upon receiving the signal from the domain controller, disconnects the circuit between the supercapacitor and the vehicle domain controller.

[0068] The vehicle control system provided in this invention, through its simple hardware architecture and collaborative control logic, enables rapid emergency unlocking in scenarios where the vehicle's main power supply is depleted. Emergency power supply and unlocking operations can be completed via an external charging device without the need for professional rescue. This reduces user costs and operational complexity. Furthermore, thanks to the fast charging and stable power supply characteristics of the supercapacitor module, it ensures the reliability of the vehicle domain controller wake-up and unlocking command execution, effectively solving the core pain point of new energy vehicles without mechanical keys being unable to unlock when the power is depleted.

[0069] Figure 4 This is a schematic diagram of a vehicle control device provided in an embodiment of the present invention, used for implementation. Figure 1 The method described herein includes: The first control module 41 is used to control the circuit between the vehicle domain controller and the supercapacitor module to be turned on when the power of the vehicle's on-board main power supply is less than the power threshold. The supercapacitor module is connected to the vehicle's on-board energy storage module. The on-board main power supply is used to supply power to the whole vehicle under normal vehicle operation. The on-board energy storage module is used to supply power to the vehicle domain controller by receiving external power when the on-board main power supply cannot supply power. The second control module 42 is used to control the vehicle energy storage module to charge the supercapacitor module when the vehicle energy storage module receives a charging operation from an external charging device, so that the supercapacitor module supplies power to the vehicle domain controller. The third control module 43 is used to control the vehicle to unlock when the vehicle domain controller receives an unlock signal for the vehicle.

[0070] In one possible implementation, the first control module is specifically configured to determine that the power level of the vehicle main power supply is less than a power threshold when it receives a low power signal sent by the vehicle main power supply. The vehicle domain controller is controlled to output a closed signal to the circuit control module, so that the circuit control module performs a closing action according to the closed signal to connect the circuit between the vehicle domain controller and the supercapacitor module. The vehicle domain controller and the supercapacitor module are connected through the circuit control module.

[0071] In one possible implementation, the third control module is further configured to receive a power replenishment operation on the vehicle main power supply and then control the vehicle main power supply to send power to the vehicle domain controller. When the battery level is greater than or equal to a battery threshold, the vehicle domain controller is controlled to output a disconnect signal to the circuit control module, so that the circuit control module performs a disconnection action according to the disconnect signal to disconnect the circuit between the vehicle domain controller and the supercapacitor module.

[0072] In one possible implementation, the second control module is specifically used to collect the operating status signal of the vehicle domain controller in real time during the power supply process; When the operating status signal indicates that the vehicle domain controller is in the sleep-wake phase, the output power of the supercapacitor is controlled to be the first power supply power. When the working status signal indicates that the vehicle domain controller is in the instruction processing stage, the output power of the supercapacitor is controlled to be the second power supply power, which is less than the first power supply power. When the working status signal indicates that the vehicle domain controller is in the unlock command issuance stage, the output power of the supercapacitor is controlled to be a third power supply power, which is greater than the first power supply power.

[0073] In one possible implementation, the second control module is specifically configured to establish a unidirectional power supply path after the supercapacitor module reaches a power supply threshold, so that the supercapacitor module supplies power to the vehicle domain controller, and to block the reverse energy flow from the direction of the vehicle domain controller.

[0074] In one possible implementation, the first control module is further configured to receive device characteristic information sent by the external charging device before the on-board energy storage module receives the charging operation from the external charging device. Determine whether the external charging device is an authorized device based on the device feature information; If it is determined that the external charging device is an authorized device, the on-board energy storage module is allowed to receive the charging operation of the external charging device; If it is determined that the external charging device is not an authorized device, the vehicle-mounted energy storage module shall be prohibited from entering the charging state.

[0075] The vehicle control device provided in this embodiment can be as follows: Figure 4 The apparatus shown can perform, as Figure 1 All steps of the vehicle control method in China, thereby achieving Figure 1 For details on the technical effects of the vehicle control method shown, please refer to [link / reference]. Figure 1 The relevant descriptions are presented concisely and will not be elaborated upon here.

[0076] Figure 5 This is a schematic diagram of the structure of a vehicle provided in an embodiment of the present invention. Figure 5 The vehicle 500 shown includes at least one processor 501, a memory 502, at least one network interface 504, and other user interfaces 503. The various components in the vehicle 500 are coupled together via a bus system 505. It is understood that the bus system 505 is used to implement communication between these components. In addition to a data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in… Figure 5 The general designated all buses as Bus System 505.

[0077] The user interface 503 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0078] It is understood that the memory 502 in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate Synchronous DRAM (DDRSDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 502 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0079] In some implementations, memory 502 stores elements, executable units or data structures, or subsets thereof, or extended sets thereof: operating system 5021 and application program 5022.

[0080] The operating system 5021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 5022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this embodiment can be included in the application program 5022.

[0081] In this embodiment of the invention, by calling the program or instructions stored in memory 502, specifically the program or instructions stored in application program 5022, processor 501 executes the method steps provided in each method embodiment, including, for example: When the power of the vehicle's main power supply is less than the power threshold, the circuit between the vehicle's domain controller and the supercapacitor module is turned on. The supercapacitor module is connected to the vehicle's on-board energy storage module. The main power supply is used to power the entire vehicle under normal operating conditions. The on-board energy storage module is used to supply power to the vehicle domain controller by receiving external power when the main power supply cannot provide power. When the on-board energy storage module receives a charging operation from an external charging device, the on-board energy storage module is controlled to charge the supercapacitor module so that the supercapacitor module supplies power to the vehicle domain controller. When the vehicle domain controller receives an unlock signal for the vehicle, it controls the vehicle to unlock.

[0082] The methods disclosed in the above embodiments of the present invention can be applied to or implemented by processor 501. Processor 501 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 501 or by instructions in the form of software. The processor 501 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software units in the decoding processor. The software units may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 502. Processor 501 reads the information in memory 502 and, in conjunction with its hardware, completes the steps of the above method.

[0083] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or combinations thereof.

[0084] For software implementation, the techniques described herein can be implemented by units that perform the functions described herein. The software code can be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0085] The vehicle provided in this embodiment can be as follows: Figure 5 The device shown can perform, for example Figure 1 All steps of the vehicle control method in China, thereby achieving Figure 1 For details on the technical effects of the vehicle control method shown, please refer to [link / reference]. Figure 1 The relevant descriptions are presented concisely and will not be elaborated upon here.

[0086] This invention also provides a storage medium (computer-readable storage medium). This storage medium stores one or more programs. The storage medium may include volatile memory, such as random access memory; it may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid-state drive; and it may also include combinations of the above types of memory.

[0087] One or more programs in the storage medium can be executed by one or more processors to implement the vehicle control method described above that is executed on the vehicle side.

[0088] The processor is used to execute a vehicle control program stored in the memory to implement the following steps of a vehicle control method executed on the device side: When the power of the vehicle's main power supply is less than the power threshold, the circuit between the vehicle's domain controller and the supercapacitor module is turned on. The supercapacitor module is connected to the vehicle's on-board energy storage module. The main power supply is used to power the entire vehicle under normal operating conditions. The on-board energy storage module is used to supply power to the vehicle domain controller by receiving external power when the main power supply cannot provide power. When the on-board energy storage module receives a charging operation from an external charging device, the on-board energy storage module is controlled to charge the supercapacitor module so that the supercapacitor module supplies power to the vehicle domain controller. When the vehicle domain controller receives an unlock signal for the vehicle, it controls the vehicle to unlock.

[0089] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0090] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0091] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle control method, characterized in that, include: When the power of the vehicle's main power supply is less than the power threshold, the circuit between the vehicle's domain controller and the supercapacitor module is turned on. The supercapacitor module is connected to the vehicle's on-board energy storage module. The main power supply is used to power the entire vehicle under normal operating conditions. The on-board energy storage module is used to supply power to the vehicle domain controller by receiving external power when the main power supply cannot provide power. When the on-board energy storage module receives a charging operation from an external charging device, the on-board energy storage module is controlled to charge the supercapacitor module so that the supercapacitor module supplies power to the vehicle domain controller. When the vehicle domain controller receives an unlock signal for the vehicle, it controls the vehicle to unlock.

2. The method according to claim 1, characterized in that, The step of controlling the circuit connection between the vehicle domain controller and the supercapacitor module when the power of the vehicle's onboard main power supply is less than a power threshold includes: Upon receiving a low battery signal from the vehicle's main power supply, it is determined that the battery level of the vehicle's main power supply is less than a battery threshold. The vehicle domain controller is controlled to output a closed signal to the circuit control module, so that the circuit control module performs a closing action according to the closed signal to connect the circuit between the vehicle domain controller and the supercapacitor module. The vehicle domain controller and the supercapacitor module are connected through the circuit control module.

3. The method according to claim 2, characterized in that, After unlocking the vehicle, the method further includes: After receiving a power replenishment operation for the vehicle main power supply, the system controls the vehicle main power supply to send power to the vehicle domain controller. When the battery level is greater than or equal to a battery threshold, the vehicle domain controller is controlled to output a disconnect signal to the circuit control module, so that the circuit control module performs a disconnection action according to the disconnect signal to disconnect the circuit between the vehicle domain controller and the supercapacitor module.

4. The method according to claim 1, characterized in that, The step of enabling the supercapacitor module to supply power to the vehicle domain controller includes: During the power supply process, the operating status signals of the vehicle domain controller are collected in real time; When the operating status signal indicates that the vehicle domain controller is in the sleep-wake phase, the output power of the supercapacitor is controlled to be the first power supply power. When the working status signal indicates that the vehicle domain controller is in the instruction processing stage, the output power of the supercapacitor is controlled to be the second power supply power, which is less than the first power supply power. When the working status signal indicates that the vehicle domain controller is in the unlock command issuance stage, the output power of the supercapacitor is controlled to be a third power supply power, which is greater than the first power supply power.

5. The method according to claim 4, characterized in that, The step of enabling the supercapacitor module to supply power to the vehicle domain controller includes: After the supercapacitor module reaches the power supply threshold, a unidirectional power supply path is established to enable the supercapacitor module to supply power to the vehicle domain controller and to block the reverse energy flow from the direction of the vehicle domain controller.

6. The method according to claim 4, characterized in that, The method further includes: Before the on-board energy storage module receives a charging operation from an external charging device, it receives device characteristic information sent by the external charging device. Determine whether the external charging device is an authorized device based on the device feature information; If it is determined that the external charging device is an authorized device, the on-board energy storage module is allowed to receive the charging operation of the external charging device; If it is determined that the external charging device is not an authorized device, the vehicle-mounted energy storage module shall be prohibited from entering the charging state.

7. A vehicle control system, characterized in that, The system for implementing the method of claim 1 includes: Vehicle main power supply, vehicle domain controller, supercapacitor module, vehicle energy storage module, circuit control module; The vehicle main power supply is used to send a low power signal to the vehicle domain controller when the power level is less than a power threshold. The vehicle domain controller is used to send a closing signal to the circuit control module based on the low battery signal, so that the circuit control module performs a closing action, thereby enabling the vehicle domain controller to conduct with the supercapacitor module. The on-board energy storage module is used to charge the supercapacitor module when receiving a charging operation from an external charging device. The supercapacitor module is used to receive charging from the on-board energy storage module and then supply power to the vehicle domain controller. The vehicle domain controller is also configured to control the vehicle to unlock upon receiving an unlock signal for the vehicle.

8. A vehicle control device, characterized in that, include: The first control module is used to control the circuit between the vehicle domain controller and the supercapacitor module when the power of the vehicle's on-board main power supply is less than a power threshold. The supercapacitor module is connected to the vehicle's on-board energy storage module. The second control module is used to control the on-board energy storage module to charge the supercapacitor module when the on-board energy storage module receives a charging operation from an external charging device, so that the supercapacitor module supplies power to the vehicle domain controller. The third control module is used to control the vehicle to unlock when the vehicle domain controller receives an unlock signal for the vehicle.

9. A vehicle, characterized in that, include: A processor and a memory, the processor being configured to execute a vehicle control program stored in the memory to implement the vehicle control method according to any one of claims 1 to 6.

10. A storage medium, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the vehicle control method according to any one of claims 1 to 6.

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