Vehicle power supply system restarting method and device and vehicle end control equipment

Abstract

The invention relates to a vehicle power supply system restarting method and device and vehicle end control equipment, and relates to the technical field of vehicles. The method comprises the steps that when a power supply restart instruction is obtained and it is judged that the vehicle state meets the preset restart precondition, a first power-off instruction is transmitted to a first power supply control module; when it is monitored that the first power supply control module is in the power-off state, a second power-off instruction is transmitted to a second power supply control module; the voltage controlled by the second power supply control module is higher than that controlled by the first power supply control module; when it is monitored that the second power supply control module is in the power-off state, a restart instruction is transmitted to a storage battery controller so as to control the storage battery to be restarted after the storage battery is powered off for a preset duration; therefore, restarting of the whole vehicle software is achieved, the problems that the controller software of the vehicle is abnormal and power-on and power-off cannot be recovered are solved quickly, professional maintenance personnel do not need to be present, and the user experience of the intelligent vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a method, device and vehicle-side control device for restarting a vehicle power supply system. Background Art

[0002] With the development of vehicle technology, automobile intelligence is the development trend of today's automobile industry. The intelligence of vehicles enables cars to provide better user experience.

[0003] However, as the level of intelligence increases, the vehicle controller software of electric vehicles is becoming more and more complex; the vehicle controller software may not be able to execute normally due to software-level failures, and such software-level failures may also cause the controller to freeze. In related technologies, when this happens, the problem of controller software abnormality can be solved by powering off the entire vehicle and cutting off the battery power supply to service the entire vehicle software, but the related operations are dangerous and complicated and can only be handled by professional maintenance personnel.

[0004] Therefore, there is an urgent need to provide a solution that can quickly solve the problem of vehicle controller software abnormalities and power failure. Summary of the invention

[0005] Based on this, it is necessary to provide a vehicle power supply system restart method, device, computer equipment, computer-readable storage medium and computer program product that can quickly solve the problem of controller software abnormalities and power failure in the vehicle to address the above technical problems.

[0006] In a first aspect, the present application provides a method for restarting a vehicle power supply system, comprising:

[0007] When a power supply restart instruction is obtained and it is determined that the vehicle state meets the preset restart precondition, a first power-off instruction is transmitted to the first power supply control module;

[0008] When it is detected that the first power control module is in a power-off state, a second power-off instruction is transmitted to the second power control module; the voltage controlled by the second power control module is higher than the voltage controlled by the first power control module;

[0009] When it is detected that the second power control module is in a power-off state, a restart instruction is transmitted to the battery controller to control the battery to restart after being powered off for a preset period of time.

[0010] In one embodiment, it also includes:

[0011] When it is detected that the battery is restarted successfully, a first power-on instruction is transmitted to the first power control module;

[0012] When it is detected that the first power control module is in a powered-on state, transmitting a second power-on instruction to the second power control module;

[0013] When it is detected that the second power control module is in the power-on state, the vehicle power supply system restart process is exited.

[0014] In one embodiment, when a power supply restart instruction is obtained and it is determined that the vehicle state meets a preset restart precondition, transmitting a first power-off instruction to the first power supply control module includes:

[0015] When a power supply restart instruction is obtained, obtaining a current first state of the vehicle; the first state includes vehicle speed, gear position, power supply state and battery power;

[0016] When it is determined that the current first state satisfies the preset restart precondition, a vehicle restart pending confirmation instruction is transmitted to the instrument panel module of the vehicle; the instrument panel module is used to receive a confirmation operation or a rejection operation for the vehicle restart pending confirmation instruction;

[0017] When a vehicle restart confirmation instruction is obtained, a first power-off instruction is transmitted to the first power control module.

[0018] In one embodiment, after transmitting the first power-off instruction to the first power control module, the method further includes:

[0019] Acquire the current second state of the vehicle, and when the current second state satisfies the first preset state, control the first power control module to execute the first power-off instruction; the second state includes the vehicle mode, thermal runaway state, and intelligent power replenishment state.

[0020] In one embodiment, after controlling the first power control module to execute the first power-off instruction, the method further includes:

[0021] When it is detected that the first power control module fails to power off, a first power-on instruction is transmitted to the first power control module, and the vehicle power supply system restart process is exited; and a prompt message of power supply restart failure is transmitted to the instrument screen module of the vehicle.

[0022] In one embodiment, after transmitting the second power-off instruction to the second power control module, the method further includes:

[0023] Acquire the current third state of the vehicle, and when the current third state satisfies the second preset state, control the second power control module to execute the second power-off instruction; the third state includes the working state of the vehicle's power conversion module and the working state of the high-voltage relay.

[0024] In one embodiment, after controlling the second power control module to execute the second power-off instruction, the method further includes:

[0025] When it is detected that the second power control module fails to power off, a second power-on instruction is transmitted to the second power control module, and the vehicle power supply system restart process is exited; and a prompt message of power supply restart failure is transmitted to the instrument screen module of the vehicle.

[0026] In one embodiment, after the second power control module is detected to be in a power-off state, the method further includes:

[0027] Obtain and store at least one of the vehicle's current door status, lock status, battery restart mark, and power-off reason; and report the vehicle power supply system restart event to the cloud.

[0028] In a second aspect, the present application further provides a vehicle power supply system restart device, the device comprising:

[0029] A first power-off module, configured to transmit a first power-off instruction to a first power supply control module when a power supply restart instruction is obtained and it is determined that the vehicle state meets a preset restart precondition;

[0030] A second power-off module, configured to transmit a second power-off instruction to a second power-off module when detecting that the first power-off module is in a power-off state; the voltage controlled by the second power-off module is higher than the voltage controlled by the first power-off module;

[0031] The battery restart module is used to transmit a restart instruction to the battery controller when it is detected that the second power control module is in a power-off state, so as to control the battery to restart after a preset power-off period.

[0032] In a third aspect, the present application further provides a vehicle-side control device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements any step in the above-mentioned first aspect when executing the computer program.

[0033] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements any step in the above-mentioned first aspect when executed by a processor.

[0034] In a fifth aspect, the present application further provides a computer program product, comprising a computer program, which implements any step in the above-mentioned first aspect when executed by a processor.

[0035] In the vehicle power supply system restart method, device, computer equipment, computer-readable storage medium and computer program product provided by the present application, the vehicle power supply system restart method transmits a first power-off instruction to the first power control module when a power supply restart instruction is obtained and it is determined that the vehicle state meets the preset restart pre-condition; transmits a second power-off instruction to the second power control module when it is detected that the first power control module is in a power-off state; the voltage controlled by the second power control module is higher than the voltage controlled by the first power control module; when it is detected that the second power control module is in a power-off state, transmits a restart instruction to the battery controller to control the battery to restart after a preset power-off period; it can be seen that the method drives the vehicle system arbitration according to the preset control process through the power supply restart instruction signal given by the user, and triggers the power-off of the first power control module and the power-off of the second power control module in turn, and then restarts the battery after the second power control module is successfully powered off, thereby realizing the restart of the whole vehicle software, which is conducive to quickly solving the problem of abnormal controller software and power-on and power-off failure in the vehicle, and does not require the presence of professional maintenance personnel, which is conducive to improving the user experience of smart cars. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a flowchart of a method for restarting a vehicle power supply system in one embodiment;

[0038] Figure 2 A supplementary flow chart of a method for restarting a vehicle power supply system in one embodiment;

[0039] Figure 3 is a schematic diagram of executing a method for restarting a vehicle power supply system in one embodiment;

[0040] Figure 4 It is a structural block diagram of a vehicle power supply system restarting device in one embodiment;

[0041] Figure 5 FIG. 4 is a diagram showing the internal structure of a vehicle control device in one embodiment. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] The vehicle power supply system restart method provided in the embodiment of the present application can be applied to an application environment including a vehicle controller, a vehicle-mounted T-BOX and a cloud platform. Among them, the vehicle controller communicates with the vehicle-mounted T-BOX, the vehicle-mounted T-BOX communicates with the cloud platform, and the vehicle controller exchanges data with the cloud platform through the vehicle-mounted T-BOX. T-BOX is the abbreviation of TelematicBOX in English, which generally refers to an intelligent vehicle-mounted terminal in a vehicle networking system; simply put, T-BOX is one of the main ways to collect data. After T-BOX obtains the vehicle data, it uploads the data to a cloud platform or server. Among them, the server can be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server (cloud platform) that provides cloud computing services.

[0044] In the vehicle power supply system restart method provided in the present application, when the vehicle controller obtains the power supply restart instruction triggered by the vehicle user or maintenance personnel and determines that the vehicle state meets the preset restart pre-conditions, it will transmit a first power-off instruction to the first power control module, so that the first power control module can be powered off based on the first power-off instruction and is in a power-off state without outputting electrical signals; when the vehicle controller monitors that the first power control module is in the power-off state, it transmits a second power-off instruction to the second power control module, so that the second power control module can be powered off based on the second power-off instruction and is in a power-off state without outputting electrical signals; wherein the voltage controlled by the second power control module is higher than the voltage controlled by the first power control module; when the vehicle controller monitors that the second power control module is in the power-off state, it can further transmit a restart instruction to the battery controller to control the battery to restart after the power is cut off for a preset period of time, thereby realizing the restart of the entire vehicle software.

[0045] In an exemplary embodiment, Figure 1 As shown, a method for restarting a vehicle power supply system is provided, comprising the following steps 101 to 103. Among them:

[0046] Step 101: When a power supply restart instruction is obtained and it is determined that the vehicle state meets a preset restart precondition, a first power-off instruction is transmitted to a first power supply control module.

[0047] The power supply restart instruction is used to instruct the vehicle to restart the vehicle power supply system. The power supply restart instruction can be triggered by the vehicle owner himself or by a maintenance person or technician of the vehicle manufacturing company, and this application does not make specific restrictions on this.

[0048] Among them, the preset restart pre-conditions are some vehicle status conditions that need to be met for restarting the vehicle power supply system, which are set in advance by the vehicle manufacturer before the vehicle leaves the factory; the present application does not limit the specific content included in the restart pre-conditions, and each vehicle manufacturer can selectively set the restart pre-conditions based on demand; regarding the restart pre-conditions of the vehicle power supply system, for example, it may involve whether the vehicle is in motion, the vehicle's driving speed, the power of the power module in the vehicle's power supply system, etc.

[0049] Among them, the first power control module can be a KL15 power control module. The KL15 power control module can be used, for example, to power the vehicle's dashboard, large screen, central control, doors and windows and other equipment, so that when the vehicle is in a stationary state, some devices are turned on to provide the vehicle's users with the use of some vehicle functions when the vehicle is parked, thereby improving the user's car experience when the vehicle is parked.

[0050] Exemplarily, when the vehicle obtains the power restart instruction, it may determine whether the current vehicle state of the vehicle satisfies the preset restart preconditions required for restarting the power supply system of the vehicle. When it is determined that the vehicle state satisfies the preset restart preconditions, the vehicle may further transmit a first power-off instruction to the first power control module (KL15 power control module) to control the first power control module to power off; that is, the vehicle's KL15 power control module is disconnected from the power supply to the vehicle's dashboard, large screen, central control, doors and windows and other peripheral devices, and preparations are made for the restart of the battery in the vehicle's power supply system, thereby helping to avoid damage to the vehicle's peripheral devices powered by the KL15 power control module due to the restart of the battery in the vehicle's power supply system.

[0051] In addition to the KL15 power control module, the smart vehicle also involves a second power control module that supplies power to a device with a high voltage requirement, such as a lithium battery pack. If only the first power control module is powered off, but not the second power control module, the vehicle's peripheral devices may still receive an electrical signal that can drive them to work normally, since the second power control module can output a high-voltage electrical signal. In order to avoid the situation where the vehicle's peripheral devices are not in a powered-off state before the vehicle's battery is restarted, the present application further provides step 102 after step 101.

[0052] Step 102: When it is detected that the first power control module is in a power-off state, a second power-off instruction is transmitted to the second power control module; the voltage controlled by the second power control module is higher than the voltage controlled by the first power control module.

[0053] The voltage value range of the output voltage of the second power control module is, for example, between 400 V and 800 V. The voltage value of the output voltage of the first power control module can be much smaller than the voltage value of the output voltage of the second power control module, for example, the voltage value of the output voltage of the first power control module can be within 100 V.

[0054] Exemplarily, when it is monitored that the first power control module is in a power-off state, that is, it is not supplying power to its electrically connected peripheral devices, a second power-off instruction can be further transmitted to the second power control module to control the second power control module to power off, that is, disconnect the high-voltage control module of the vehicle to output a high-voltage signal to disconnect the power supply to electrical equipment in the vehicle, such as a lithium battery pack, to prepare for the restart of the battery in the vehicle's power supply system, thereby helping to avoid damage to some equipment in the vehicle due to the restart of the battery in the vehicle's power supply system.

[0055] Step 103, when it is detected that the second power control module is in a power-off state, a restart instruction is transmitted to the battery controller to control the battery to restart after being powered off for a preset time.

[0056] Exemplarily, after the first power control module and the second power control module are instructed to power off in sequence based on the execution of steps 101 and 102, step 103 can be further executed to monitor whether the second power control module is in the power-off state. When it is determined that the second power control module is in the power-off state, a restart instruction can be further transmitted to the battery controller in the vehicle, so that the battery controller can implement restart control of the battery after receiving the restart instruction, so that the battery can be powered off and then restarted; wherein, the time interval between power off and restart of the battery (preset duration) can be input by the user when triggering the power supply restart instruction based on demand, or it can be set by the car manufacturer before the vehicle leaves the factory. The present application does not limit the duration of the time interval between power off and restart of the battery.

[0057] Whether the battery is powered off successfully can be determined based on the size of the electrical signal output by the battery. For example, if the battery output voltage is less than 1V, the battery can be considered to be in a power-off state. The battery can be used to power at least the power-consuming modules that require long-term uninterrupted power supply, such as the vehicle key detection.

[0058] In the above-mentioned vehicle power supply system restart method, when the power supply restart instruction is obtained and it is determined that the vehicle state meets the preset restart pre-condition, the first power-off instruction is transmitted to the first power control module; when it is monitored that the first power control module is in the power-off state, the second power-off instruction is transmitted to the second power control module; the voltage controlled by the second power control module is higher than the voltage controlled by the first power control module; when it is monitored that the second power control module is in the power-off state, the restart instruction is transmitted to the battery controller to control the battery to restart after the power is cut off for a preset period of time; it can be seen that this method drives the vehicle system arbitration according to the preset control process through the power supply restart instruction signal given by the user, and triggers the power-off of the first power control module and the second power control module in turn according to the pre-set control process, and then restarts the battery after the second power control module is successfully powered off, thereby realizing the restart of the entire vehicle software, which is conducive to quickly solving the problem of abnormal controller software and power-on and power-off failure in the vehicle, and does not require the presence of professional maintenance personnel, which is conducive to improving the user experience of smart cars.

[0059] In an exemplary embodiment, please combine Figure 1 Reference Figure 2 The vehicle power supply system restart method provided in the present application, after the step of transmitting a restart instruction to the battery controller to control the battery to restart after a preset power-off period in step 103, further includes relevant process steps in the vehicle power supply system restart process, which can be implemented by at least executing steps 104 to 106, wherein:

[0060] Step 104, when it is detected that the battery is restarted successfully, transmitting a first power-on instruction to the first power control module;

[0061] Step 105, when it is detected that the first power control module is in a powered-on state, transmitting a second power-on instruction to the second power control module;

[0062] Step 106 , when it is detected that the second power control module is in the powered-on state, exit the vehicle power supply system restart process.

[0063] Exemplarily, by executing step 104, it is monitored whether the battery is in a state of successful restart. When it is monitored that the battery has restarted successfully, in order to ensure the restart effect of the vehicle power supply system, it is possible to first transmit a first re-power-on instruction to the first power control module, that is, first drive the first power control module to start supplying power to the peripheral devices electrically connected to it; since the peripheral devices in the vehicle that are powered by the first power control module are, for example, the vehicle's instrument panel, large screen, central control, doors and windows and other devices, these devices need to be started before the vehicle is in a driving state, and the activation of these devices is conducive to improving the user experience when the vehicle is parked, therefore, after the battery is restarted, first control the first power control module to power on, which is conducive to improving the vehicle user experience.

[0064] Then, step 105 can be further executed. When it is determined that the first power control module is in the power-on state, a second re-power-on instruction is transmitted to the second power control module, that is, the second power control module is driven to start supplying power to the device electrically connected to it; since the devices in the vehicle that are powered by the second power control module, such as lithium battery packs, have high requirements on the voltage value of the voltage signal, it can also be said that the second power control module is mainly used to achieve the entry and continuation of the vehicle's driving state; therefore, after the battery is successfully restarted and the first power control module is also in the power-on state, the power-on of the second power control module is triggered, which is more in line with the sequential requirements of the various electrical devices (devices or modules) of the vehicle for electrical signals during the use of the vehicle, which is beneficial to improving the vehicle user experience.

[0065] Finally, step 106 can be further executed to confirm whether the second power control module is in the power-on state. When it is determined that the second power control module is in the power-on state, it means that the battery, the first power control module and the second power control module involved in the vehicle power supply system are all in normal operation state and can be used to output relevant electrical signals to the electrical devices electrically connected thereto. Then, the vehicle power supply system restart process can be exited and the vehicle can be restored to a state where it can be used normally.

[0066] Among them, when the vehicle is in the process of restarting the vehicle power supply system, the vehicle cannot be used normally.

[0067] In an exemplary embodiment, the above step 101, when a power supply restart instruction is obtained and it is determined that the vehicle state meets the preset restart precondition, transmits the first power-off instruction to the first power control module, which can be specifically implemented by executing steps 111 to 113, wherein:

[0068] Step 111, when a power supply restart instruction is obtained, obtaining the current first state of the vehicle; the first state includes vehicle speed, gear position, power supply state and battery power;

[0069] Step 112, when it is determined that the current first state satisfies the preset restart precondition, transmitting a vehicle restart confirmation instruction to the vehicle instrument panel module; the instrument panel module is used to receive a confirmation operation or a rejection operation for the vehicle restart confirmation instruction;

[0070] Step 113: When a vehicle restart confirmation instruction is obtained, a first power-off instruction is transmitted to the first power control module.

[0071] Exemplarily, step 111 may be executed first, and when a power restart instruction is obtained, the current vehicle state of the vehicle is obtained, that is, the current first state of the vehicle is obtained, which may include obtaining status information such as the vehicle's current speed, gear, power supply state and battery charge; and then step 112 may be further executed to determine whether the current first state of the vehicle satisfies a preset restart precondition. When it is determined that the current first state satisfies the preset restart precondition, a vehicle restart confirmation instruction is further transmitted to the vehicle's instrument screen module, so that inquiry information such as "Are you sure you want to restart the vehicle now" can be displayed on the vehicle's instrument screen, so that the vehicle user can be informed that the vehicle may be about to enter the power supply system restart process, so as to avoid panic caused by the vehicle user not knowing the power supply system restart event.

[0072] Among them, the preset restart preconditions may be: the current gear is P gear, the vehicle speed is less than 3KM / h (kilometers per hour), the battery power is greater than 30%, and the battery power supply status is normal and the low-voltage power supply status is normal.

[0073] When the vehicle user sees the pending confirmation information about the vehicle power supply system restart event on the instrument screen, he or she can choose to enter the vehicle power supply system restart process or refuse to enter the vehicle power supply system restart process based on his or her needs; then, the vehicle user's confirmation operation or refusal operation will be transmitted to the vehicle controller based on the vehicle's instrument screen module.

[0074] Step 113 can be further executed. When a vehicle restart confirmation instruction is obtained, it indicates that the user of the vehicle allows the vehicle power supply system restart process to begin now. At this time, the corresponding first power-off instruction can be sent to the first power control module in the vehicle power supply system.

[0075] By sending confirmation information of the relevant time to the vehicle user before the vehicle power supply system restart process begins, and then entering the vehicle power supply system restart process only after obtaining the vehicle user's permission, it can avoid the vehicle user being suddenly trapped in the vehicle without knowing it, and it can also avoid the vehicle user being suddenly unable to get any response from the vehicle without knowing it, which is beneficial to improving the vehicle user's car experience; in addition, it can also avoid the sudden vehicle power supply system restart process during the driving of the vehicle, thereby ensuring the driving safety of the vehicle.

[0076] In an exemplary embodiment, after the first power-off instruction is transmitted to the first power control module in step 101, the vehicle power supply system restart method provided in the present application may also include the steps of: obtaining the current second state of the vehicle, and controlling the first power control module to execute the first power-off instruction when the current second state satisfies the first preset state; the second state includes the vehicle mode, thermal runaway state, and intelligent power replenishment state.

[0077] For example, after transmitting the first power-off instruction to the first power control module, it is possible to first determine whether the current state of the vehicle meets the requirements for powering off the first power control module; a related implementation method may be to obtain the current second state of the vehicle, and determine whether the current second state of the vehicle meets the first preset state. If it is determined that the current second state of the vehicle meets the first preset state, it means that the first power control module can be powered off at this time, and the first power control module can be further controlled to execute the first power-off instruction, so as to be in a state where no electrical signal is output for the electrical equipment electrically connected to the first power control module. In this way, it is beneficial to ensure the stability of vehicle use and avoid damage to the electrical equipment electrically connected to it due to the sudden power-off of the first power control module.

[0078] Among them, the first preset state can be: the vehicle is not in OTA (Over-the-Air, remote upgrade) mode, driving mode, remote control mode, the vehicle's thermal runaway state is normal, and the vehicle's intelligent power replenishment mode is not turned on.

[0079] In an exemplary embodiment, after the above-mentioned step of controlling the first power control module to execute the first power-off instruction, the vehicle power supply system restart method provided in the present application may also include the steps of: when it is detected that the first power control module fails to power off, transmitting the first power-on instruction to the first power control module and exiting the vehicle power supply system restart process; and transmitting a prompt message of power supply restart failure to the vehicle's instrument screen module.

[0080] Exemplarily, if it is monitored that the first power control module is not in a power-off state, that is, if the power-off fails, a first power-on instruction can be transmitted to the first power control module to make the first power control module power on again and exit the vehicle power supply system restart process. The information that the first power control module failed to restart is transmitted to the vehicle's instrument screen module, or the information that the vehicle power supply system failed to restart is transmitted to the vehicle's instrument screen module, so that the vehicle user can be informed that the current restart operation of the vehicle power supply system has not been successful.

[0081] By arranging to transmit the first power-on instruction to the first power control module when it is monitored that the first power control module fails to power off, the vehicle power supply system can be restored to a normal working state, avoiding the situation where the vehicle cannot be used normally, and also helping to avoid the situation where the vehicle users are trapped in the vehicle, thereby increasing the vehicle's safety and user experience.

[0082] After exiting the vehicle power supply system restart process, if the vehicle power supply system of the vehicle needs to be restarted again, a power supply restart instruction can be sent to the vehicle again.

[0083] In an exemplary embodiment, after the second power-off instruction is transmitted to the second power control module as mentioned above, the vehicle power supply system restart method provided in the present application may also include the steps of: obtaining the current third state of the vehicle, and controlling the second power control module to execute the second power-off instruction when the current third state satisfies the second preset state; the third state includes the working state of the vehicle's power conversion module and the working state of the high-voltage relay.

[0084] For example, after transmitting the second power-off instruction to the second power control module, it is possible to first determine whether the current state of the vehicle meets the requirement for powering off the second power control module; a related implementation method may be to obtain the current third state of the vehicle, and determine whether the current third state of the vehicle meets the pre-set second preset state. If it is determined that the current third state of the vehicle meets the second preset state, it means that the second power control module can be powered off at this time, and the second power control module can be further controlled to execute the second power-off instruction, so as to be in a state where no electrical signal is output for the electrical equipment electrically connected to the second power control module. In this way, it is beneficial to ensure the stability of vehicle use and avoid damage to the electrical equipment electrically connected to it due to the sudden power-off of the second power control module.

[0085] The second preset state may be: the DCDC power conversion module is in a normal working state and the high voltage relay is in a normal state. The DCDC power conversion module is a DC to DC converter module.

[0086] In an exemplary embodiment, after the above-mentioned control of the second power control module to execute the second power-off instruction, the vehicle power supply system restart method provided in the present application may also include the following steps: when it is monitored that the second power control module fails to power off, a second power-on instruction is transmitted to the second power control module, and the vehicle power supply system restart process is exited; and a prompt message of power supply restart failure is transmitted to the vehicle's instrument screen module.

[0087] For example, if it is detected that the second power control module is not in a power-off state, that is, when the power-off fails, a second power-on instruction can be transmitted to the second power control module so that the second power control module is powered on again, and the vehicle power supply system restart process is exited, and the information of the failure to restart the second power control module is transmitted to the vehicle's instrument panel module, or the information of the failure to restart the vehicle power supply system is transmitted to the vehicle's instrument panel module, so that the vehicle user can be informed that the current restart operation of the vehicle power supply system has not been successful. In addition, when transmitting the information of the failure to restart the second power control module to the vehicle's instrument panel module, it can also include transmitting the reason for the failure to restart to the instrument panel module, so that the vehicle user can be informed of the reason for the failure to restart the second power control module.

[0088] By arranging to transmit a second power-on instruction to the second power control module when it is detected that the second power control module fails to power off, it is helpful to put the second power control module in a normal working state. Since the second power control module outputs a voltage signal with a high voltage value, even after the second power control module is powered on again, the first power control module is not powered on again. The second power control module can, when needed, supply power to at least some of the peripheral devices that originally relied on the first power control module for power supply, so that the vehicle can be in a normal usable state as much as possible. Furthermore, an optional implementation method is also provided. When it is determined that the second power control module is powered on again, the first power control module can be further powered on again, so that the vehicle's power supply system can be restored to a normal working state, thereby avoiding the situation where the vehicle cannot be used normally, and also helping to avoid the situation where the vehicle user is trapped in the vehicle, thereby increasing the vehicle's safety and user experience.

[0089] After exiting the vehicle power supply system restart process, if the vehicle power supply system of the vehicle needs to be restarted again, a power supply restart instruction can be sent to the vehicle again.

[0090] In an exemplary embodiment, after the above-mentioned monitoring that the second power control module is in a power-off state, the vehicle power supply system restart method provided in the present application may also include the steps of: obtaining and storing at least one of the vehicle's current door status, lock status, battery restart mark, and power-off reason; and reporting the vehicle power supply system restart event to the cloud.

[0091] For example, when the first power control module and the second power control module are powered off successfully in sequence, the current vehicle information can be immediately stored, such as the vehicle's door status, lock status, battery restart mark, power-off reason and other information in EEPROM, and the power-off information is reported to the cloud (cloud platform) through T-BOX for recording, so that the cloud platform can record the vehicle power supply system restart event. Among them, EEPROM (Electrically Erasable Programmableread only memory) refers to electrically erasable programmable read-only memory; however, other types of memory can also be selected for the storage of current vehicle information, and this application does not limit this.

[0092] For the vehicle power supply system restart method provided in this application, this application also provides an optional implementation method. Specifically, please refer to Figure 3 , taking the user, reset module, power control module, high voltage control (VDC), battery management (BMS), battery controller (LBMS) and display instrument involved in the implementation of the method as an example for explanation. Among them, the power control module is also the first power control module mentioned above, and the high voltage control (VDC) is also the second power control module mentioned above; among them, the full spelling of VDC is Volt Direct Current, and the relevant interpretation is direct current voltage; the full spelling of BMS is Battery Management System, and the relevant interpretation is battery management system; the full spelling of LBMS is Low voltage Battery Management System, which can refer to a low-voltage battery with a controller.

[0093] The relevant vehicle power supply system restart method can be implemented by executing steps S11 to S17, wherein:

[0094] Step S11: The user triggers the battery restart command (power supply restart command) according to the operation requirements. Since the battery is used to power all wake-up sources and normal power controllers of the vehicle, the safety requirements for the abnormal battery that cannot be powered on normally are extremely high, so it cannot be triggered arbitrarily, and the triggering conditions are complex. For example, the relevant triggering conditions are: brake pedal pressed, combined with long pressing of the steering wheel button for 5 seconds, combined with long pressing of the P gear for 5 seconds.

[0095] Step S12: After receiving the restart command, the reset module determines the following conditions (preconditions): the current gear is P gear, the vehicle speed is less than 3KM / h, the battery power is greater than 30%, and the battery and low-voltage power supply are in normal state. If the above conditions are met, the instrument or large screen (instrument screen module) pops up a box and waits for the user to confirm twice before starting the battery restart process. Among them, the information displayed on the instrument or large screen can be "The vehicle is about to restart, and the function is unavailable during the restart. Please confirm if you want to restart."

[0096] Step S13: Start the power-off process. First, the reset module sends a KL15 power-off request to the power module (the first power control module). The power module determines whether the following conditions are met: the vehicle is not in OTA mode, driving mode, or remote control mode, the thermal runaway state of the vehicle is normal, and the intelligent power replenishment mode of the vehicle is not turned on. If the above conditions are met, the power module executes the KL15 power-off command and times for 5 seconds to obtain the KL15 power-off status. If KL15 is powered off, the operation is successful. If it is not powered off after a timeout of 5 seconds, it is determined that the power-off has failed. The power-off failure is synchronously fed back to the vehicle's instrument or large screen, and the KL15 power-on command is re-output to exit the power-off process.

[0097] Step S14: After KL15 is powered off successfully, the power module sends a high-voltage power-off request to VDC (the second power control module). VDC determines that the following conditions are met: the DCDC power conversion module is in normal working condition and the high-voltage relay is in normal condition; if the above conditions are met, VDC sends a high-voltage power-off instruction and continues to obtain the high-voltage status. After the high-voltage power-off is successful, the operation is successful. If the power is not turned off after a timeout of 10 seconds, it is determined that the power-off has failed, and the reason for the high-voltage power-off failure is synchronized to the vehicle's instrument or large screen, and the high-voltage power-on is controlled again to exit the power-off process.

[0098] Step S15: After the reset module receives the high voltage power-off success, it immediately stores the current vehicle information (door status, lock status, battery restart mark, power-off reason) in the EEPROM, and reports the power-off information to the cloud through T-BOX for recording.

[0099] Step S16: The reset module sends a battery restart command to the battery controller. After the controller cuts off the power supply and the voltage is less than 1V, it counts for 5 seconds and then resumes the battery power supply after 5 seconds. The battery power supply can also be resumed by disconnecting the MOS (the switch tube used to control the battery) and counting for three seconds.

[0100] Step S17: After power-on, the reset module reads the battery restart flag status in the EEPROM. If the battery restart is set, K15 (the first power controller module) is powered on first, and then the high voltage (the second power controller module) is driven to power on. If the battery restart is not set, the reset module is exited and the power is turned on according to the normal power-on process.

[0101] This solution can solve the problem that when the user's vehicle has a software anomaly and the power cannot be restored, professionals are required to unplug the battery. The process of restarting the battery is safe and controllable in combination with the functional logic of the whole vehicle, avoiding the impact of uncertain operation sequence on the vehicle components during manual unplugging and plugging of the battery, and avoiding accidents caused by improper installation operations.

[0102] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0103] Based on the same inventive concept, the embodiment of the present application also provides a vehicle power supply system restart device for implementing the vehicle power supply system restart method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the vehicle power supply system restart device provided below can refer to the limitations of the vehicle power supply system restart method above, and will not be repeated here.

[0104] In an exemplary embodiment, Figure 4 As shown, a vehicle power supply system restart device 300 is provided, comprising: a first power-off module 81, a second power-off module 82 and a battery restart module 83, wherein:

[0105] A first power-off module 81 is used to transmit a first power-off instruction to the first power control module when a power supply restart instruction is obtained and it is determined that the vehicle state meets the preset restart precondition;

[0106] The second power-off module 82 is used to transmit a second power-off instruction to the second power-off control module when it is detected that the first power-off control module is in a power-off state; the voltage controlled by the second power-off control module is higher than the voltage controlled by the first power-off control module;

[0107] The battery restart module 83 is used to transmit a restart instruction to the battery controller when it is detected that the second power control module is in a power-off state, so as to control the battery to restart after being powered off for a preset time.

[0108] In an exemplary embodiment, the vehicle power supply system restart device 300 also includes: a first power-on module, which is used to transmit a first re-power-on instruction to the first power control module when it is monitored that the battery restart is successful; a second power-on module, which is used to transmit a second re-power-on instruction to the second power control module when it is monitored that the first power control module is in a powered-on state; and a restart exit module, which is used to exit the vehicle power supply system restart process when it is monitored that the second power control module is in a powered-on state.

[0109] In an exemplary embodiment, the first power-off module 81 is used to transmit the first power-off instruction to the first power control module when a power restart instruction is obtained and it is determined that the vehicle state meets the preset restart pre-conditions. It can be specifically used to obtain the current first state of the vehicle when a power restart instruction is obtained; the first state includes the vehicle speed, gear position, power supply state and battery power; when it is determined that the current first state meets the preset restart pre-conditions, a vehicle restart pending confirmation instruction is transmitted to the vehicle's instrument screen module; the instrument screen module is used to receive a confirmation operation or a rejection operation for the vehicle restart pending confirmation instruction; when a vehicle restart confirmation instruction is obtained, the first power-off instruction is transmitted to the first power control module.

[0110] In an exemplary embodiment, the first power-off module 81 is used to obtain the current second state of the vehicle after transmitting the first power-off instruction to the first power control module, and control the first power control module to execute the first power-off instruction when the current second state satisfies the first preset state; the second state includes the vehicle mode, thermal runaway state, and intelligent power replenishment state.

[0111] In an exemplary embodiment, after the first power-off module 81 is used to control the first power control module to execute the first power-off instruction, the first power-on module is used to transmit the first power-on instruction to the first power control module and exit the vehicle power supply system restart process when it is detected that the first power control module fails to power off; and transmit a prompt message of power supply restart failure to the vehicle's instrument screen module.

[0112] In an exemplary embodiment, the second power-off module 82 is used to obtain the current third state of the vehicle after transmitting the second power-off instruction to the second power control module, and control the second power control module to execute the second power-off instruction when the current third state satisfies the second preset state; the third state includes the working state of the vehicle's power conversion module and the working state of the high-voltage relay.

[0113] In an exemplary embodiment, after the second power-off module 82 is used to control the second power control module to execute the second power-off instruction, the second power-on module is used to transmit the second power-on instruction to the second power control module and exit the vehicle power supply system restart process when it is detected that the second power control module fails to power off; and transmit a prompt message of power supply restart failure to the vehicle's instrument screen module.

[0114] In an exemplary embodiment, the vehicle power supply system restart device 300 also includes a data storage module for obtaining and storing at least one of the vehicle's current door status, lock status, battery restart mark, and power-off reason after monitoring that the second power control module is in a power-off state; and reporting the vehicle power supply system restart event to the cloud.

[0115] Each module in the above-mentioned vehicle power supply system restart device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0116] Figure 5 FIG. 1 is an internal structure diagram of a vehicle-side control device in an embodiment. In an exemplary embodiment, a vehicle-side control device is provided. The internal structure diagram of the vehicle-side control device can be as follows: Figure 5 As shown. The vehicle-side control device includes a processor and a memory. Among them, the processor of the vehicle-side control device is used to provide computing and control capabilities. The memory of the vehicle-side control device includes a non-volatile storage medium, and the non-volatile storage medium stores a computer program. When the computer program is executed by the processor, a vehicle power supply system restart method is implemented.

[0117] Those skilled in the art will understand that Figure 5 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the vehicle-side control device to which the scheme of the present application is applied. The specific vehicle-side control device may include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0118] Based on the same inventive concept, the present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the aforementioned vehicle power supply system restart method is implemented. The vehicle power supply system restart method is any one of the vehicle power supply system restart methods mentioned in the embodiments of the present application. Relevant embodiments can be found above.

[0119] Based on the same inventive concept, the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the aforementioned vehicle power supply system restart method. The vehicle power supply system restart method is any one of the vehicle power supply system restart methods mentioned in the embodiments of the present application. Relevant embodiments can be found above.

[0120] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0121] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0122] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0123] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the present application. It should be noted that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A vehicle power supply system restart method, characterized in that: The method comprises: When a power supply restart instruction is obtained and it is determined that the vehicle state meets the preset restart precondition, a first power-off instruction is transmitted to the first power supply control module; When it is detected that the first power control module is in a power-off state, a second power-off instruction is transmitted to the second power control module; the voltage controlled by the second power control module is higher than the voltage controlled by the first power control module; When it is detected that the second power control module is in a power-off state, a restart instruction is transmitted to the battery controller to control the battery to restart after being powered off for a preset period of time.

2. The method according to claim 1, characterized in that Also includes: When it is detected that the battery is restarted successfully, a first power-on instruction is transmitted to the first power control module; When it is detected that the first power control module is in a powered-on state, transmitting a second power-on instruction to the second power control module; When it is detected that the second power control module is in the power-on state, the vehicle power supply system restart process is exited.

3. The method according to claim 2, characterized in that The method of transmitting a first power-off instruction to the first power control module when a power supply restart instruction is obtained and it is determined that the vehicle state meets a preset restart precondition includes: When a power supply restart instruction is obtained, obtaining a current first state of the vehicle; the first state includes vehicle speed, gear position, power supply state and battery power; When it is determined that the current first state satisfies the preset restart precondition, a vehicle restart pending confirmation instruction is transmitted to the instrument panel module of the vehicle; the instrument panel module is used to receive a confirmation operation or a rejection operation for the vehicle restart pending confirmation instruction; When a vehicle restart confirmation instruction is obtained, a first power-off instruction is transmitted to the first power control module.

4. The method according to claim 3, characterized in that After transmitting the first power-off instruction to the first power control module, the method further includes: Acquire the current second state of the vehicle, and when the current second state satisfies the first preset state, control the first power control module to execute the first power-off instruction; the second state includes the vehicle mode, thermal runaway state, and intelligent power replenishment state.

5. The method according to claim 4, characterized in that After controlling the first power control module to execute the first power-off instruction, the method further includes: When it is detected that the first power control module fails to power off, a first power-on instruction is transmitted to the first power control module, and the vehicle power supply system restart process is exited; and a prompt message of power supply restart failure is transmitted to the instrument screen module of the vehicle.

6. The method according to claim 1, characterized in that After transmitting the second power-off instruction to the second power control module, the method further includes: Acquire the current third state of the vehicle, and when the current third state satisfies the second preset state, control the second power control module to execute the second power-off instruction; the third state includes the working state of the vehicle's power conversion module and the working state of the high-voltage relay.

7. The method according to claim 6, characterized in that After controlling the second power control module to execute the second power-off instruction, the method further includes: When it is detected that the second power control module fails to power off, a second power-on instruction is transmitted to the second power control module, and the vehicle power supply system restart process is exited; and a prompt message of power supply restart failure is transmitted to the instrument screen module of the vehicle.

8. The method according to claim 1, characterized in that After the second power control module is detected to be in a power-off state, the method further includes: Obtain and store at least one of the vehicle's current door status, lock status, battery restart mark, and power-off reason; and report the vehicle power supply system restart event to the cloud.

9. A vehicle power supply system restart device, characterized in that: The device comprises: A first power-off module, configured to transmit a first power-off instruction to a first power supply control module when a power supply restart instruction is obtained and it is determined that the vehicle state meets a preset restart precondition; A second power-off module, configured to transmit a second power-off instruction to a second power-off module when detecting that the first power-off module is in a power-off state; the voltage controlled by the second power-off module is higher than the voltage controlled by the first power-off module; The battery restart module is used to transmit a restart instruction to the battery controller when it is detected that the second power control module is in a power-off state, so as to control the battery to restart after a preset power-off period.

10. A vehicle-side control device, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

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