Vehicle power shortage control method and device and storage medium

Abstract

The invention discloses a vehicle power shortage control method and device and a storage medium, and belongs to the technical field of vehicle control. The method comprises the following steps: in a power-off state, if the charging frequency of a low-voltage storage battery in a vehicle after the power-off is greater than a preset frequency, determining target electric equipment from low-voltage electric equipment under the condition that the whole vehicle quiescent current provided by the low-voltage storage battery for the low-voltage electric equipment in the vehicle is greater than a preset first quiescent current, therefore, the low-voltage storage battery is controlled to stop supplying power to the target electric equipment. Thus, under the condition that the consumed electric quantity of the low-voltage storage battery is large, low-voltage electric equipment powered by the low-voltage storage battery can be reduced, consumption of the electric quantity of the low-voltage storage battery is reduced, the low-voltage storage battery is lack of electricity, and therefore normal starting of the vehicle is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a method, device, and storage medium for controlling a low-power vehicle. Background Art

[0002] The low-voltage battery in a vehicle provides power to low-voltage electrical devices. Even when powered off, these devices still consume the battery's charge, potentially causing the battery to be low. When the vehicle starts, the battery needs to maintain a certain level of charge to ensure proper startup. A low battery charge can prevent the vehicle from starting properly. Therefore, preventing low-voltage battery charge is a pressing issue. Summary of the Invention

[0003] This application provides a method, device, and storage medium for controlling vehicle battery failure, which can solve the problem of low-voltage battery failure when the vehicle is powered off, and reduce the risk of the vehicle failing to start normally. The technical solution is as follows:

[0004] In one aspect, a method for controlling a vehicle power shortage is provided, the method comprising:

[0005] When the vehicle is in a powered-off state, if the number of times the low-voltage battery in the vehicle has been recharged after the current power-off is greater than a preset number, obtaining the vehicle's entire static current, where the entire static current is the current used by the low-voltage battery to supply power to the vehicle's low-voltage electrical equipment;

[0006] If the static current of the entire vehicle is greater than a preset first static current, determining at least one target electrical device from the low-voltage electrical devices;

[0007] The low-voltage battery is controlled to stop supplying power to the at least one target electrical device.

[0008] Optionally, determining at least one target electrical device from the low-voltage electrical devices includes:

[0009] Determining a second quiescent current provided by the low-voltage battery for each of the low-voltage electrical devices;

[0010] The at least one target electrical device is determined based on the second static current corresponding to each low-voltage electrical device.

[0011] Optionally, the determining the at least one target electrical device based on the second static current corresponding to each low-voltage electrical device includes:

[0012] Sorting the low-voltage electrical equipment according to the magnitude of the second static current to obtain an arrangement order corresponding to the low-voltage electrical equipment;

[0013] Based on the arrangement order, a preset number of low-voltage electrical devices having a large second quiescent current are selected as the at least one target electrical device.

[0014] Optionally, the determining the at least one target electrical device based on the second static current corresponding to each low-voltage electrical device includes:

[0015] Sorting the low-voltage electrical equipment according to the magnitude of the second static current to obtain an arrangement order corresponding to the low-voltage electrical equipment;

[0016] Based on the arrangement order and a preset first set of electrical users, a preset number of low-voltage electrical users having a large second static current and located in the first set of electrical users are selected as the at least one target electrical user.

[0017] Optionally, the method further includes: if the state of charge of the low-voltage battery is lower than a first preset threshold, controlling the power battery to charge the low-voltage battery.

[0018] Optionally, the method further includes: if the state of charge of the low-voltage battery is lower than a second preset threshold and the charging function of the vehicle fails, controlling the low-voltage battery to lock power.

[0019] In another aspect, a device for controlling a vehicle battery failure is provided, the device comprising:

[0020] an acquisition module, configured to acquire a whole vehicle static current of the vehicle when the vehicle is in a powered-off state and if the number of times the low-voltage battery in the vehicle has been recharged since the current power-off is greater than a preset number, wherein the whole vehicle static current is the total current output by the low-voltage battery to power the low-voltage electrical equipment of the vehicle;

[0021] a determination module, configured to determine at least one target electrical device from the low-voltage electrical devices if the static current of the entire vehicle is greater than a preset first static current;

[0022] The control module is used to control the low-voltage battery to stop supplying power to the at least one target electrical device.

[0023] Optionally, the determining module includes:

[0024] A first determining submodule, configured to determine a second static current provided by the low-voltage battery for each of the low-voltage electrical devices;

[0025] The second determining submodule is configured to determine the at least one target electrical device based on the second static current corresponding to each low-voltage electrical device.

[0026] Optionally, the second determining submodule includes:

[0027] a sorting unit, configured to sort the low-voltage electrical devices according to the magnitude of the second static current to obtain an arrangement order corresponding to the low-voltage electrical devices;

[0028] The first determining unit is configured to select a preset number of low-voltage electrical devices having a large second static current as the at least one target electrical device based on the arrangement order.

[0029] Optionally, the second determining submodule includes:

[0030] a sorting unit, configured to sort the at least one low-voltage electrical device according to the magnitude of the second static current, to obtain an arrangement order corresponding to the low-voltage electrical device;

[0031] The second determining unit is configured to select a preset number of low-voltage electrical devices having a large second static current and located in the first set of electrical devices as the at least one target electrical device based on the arrangement order and a preset first set of electrical devices.

[0032] Optionally, the device further includes: a first control module, configured to control the power battery to charge the low-voltage battery if the state of charge of the low-voltage battery is lower than a first preset threshold.

[0033] Optionally, the device further includes: a second control module, configured to control the low-voltage battery to lock power if the state of charge of the low-voltage battery is lower than a second preset threshold and the charging function of the vehicle fails.

[0034] On the other hand, a vehicle is provided, comprising a processor and a memory, wherein the memory stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the operations performed by the vehicle power loss control method described in the above aspect.

[0035] On the other hand, a computer storage medium is provided, in which at least one instruction is stored. The instruction is loaded and executed by a processor to implement the operations performed by the vehicle power loss control method described in the above aspect.

[0036] The beneficial effects of the technical solution provided by this application include at least:

[0037] The present application provides a method for controlling vehicle power loss. In the power-off state, if the number of times the low-voltage battery in the vehicle has been recharged after the current power-off is greater than a preset number, then when the vehicle static current provided by the low-voltage battery to the low-voltage electrical equipment in the vehicle is greater than a preset first static current, a target electrical equipment is determined from the low-voltage electrical equipment, thereby controlling the low-voltage battery not to supply power to the target electrical equipment. In this way, when the power consumption of the low-voltage battery is large, the low-voltage electrical equipment powered by the low-voltage battery can be reduced, thereby reducing the power consumption of the low-voltage battery, causing the low-voltage battery to be power-off, thereby ensuring the normal starting of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 This is a flow chart of a method for controlling a vehicle power failure provided by an embodiment of the present application;

[0040] Figure 2 This is a flow chart of another method for controlling a vehicle power failure provided by an embodiment of the present application;

[0041] Figure 3 This is a flowchart of determining at least one target electrical device provided by an embodiment of the present application;

[0042] Figure 4 This is another flow chart for determining at least one target electrical device provided by an embodiment of the present application;

[0043] Figure 5 This is a structural diagram of a low-voltage battery charging system provided in an embodiment of the present application;

[0044] Figure 6 This is a structural diagram of a vehicle power-loss control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0046] The vehicle power-loss control method of the present application is applicable to new energy vehicles and other vehicles that use a low-voltage battery to power the normal startup of low-voltage electrical devices in the vehicle, such as electric vehicles or hybrid electric vehicles. A low-voltage battery refers to a battery that provides power to the vehicle's low-voltage electrical devices, such as a low-voltage battery with a voltage of 12V.

[0047] When the vehicle is in the power-off state and has been parked for a long time, the low-voltage battery will become depleted due to excessive discharge, causing the low-voltage battery to affect the operation of the vehicle's low-voltage power supply equipment, resulting in the vehicle being unable to start normally. Therefore, the present application provides a method for controlling vehicle power loss, so that the power of the low-voltage battery can ensure the normal starting of the vehicle, solving the problem of low-voltage battery depletion when the vehicle is in the power-off state and reducing the risk of the vehicle being unable to start normally.

[0048] Figure 1 This is a flow chart of a method for controlling a vehicle power failure provided by an embodiment of the present application. This method can be applied to a vehicle's body domain controller. Figure 1 , the method includes the following steps.

[0049] Step 101, when the vehicle is in a power-off state, if the number of times the low-voltage battery in the vehicle is recharged after the current power-off is greater than a preset number, the vehicle's entire static current is obtained. The entire static current is the total current output by the low-voltage battery to power the vehicle's low-voltage electrical equipment.

[0050] Step 102: If the static current of the entire vehicle is greater than a preset first static current, at least one target electrical device is determined from the low-voltage electrical devices.

[0051] Step 103: Control the low-voltage battery to stop supplying power to at least one target electrical device.

[0052] The present application provides a method for controlling vehicle power loss. In the power-off state, if the number of times the low-voltage battery in the vehicle has been recharged is greater than a preset number, then when the static current of the entire vehicle provided by the low-voltage battery to the low-voltage electrical equipment in the vehicle is greater than a preset first static current, a target electrical equipment is determined from the low-voltage electrical equipment, thereby controlling the low-voltage battery not to supply power to the target electrical equipment. In this way, when the power consumption of the low-voltage battery is large, the low-voltage electrical equipment powered by the low-voltage battery can be reduced, thereby reducing the power consumption of the low-voltage battery, causing the low-voltage battery to be power-depleted, thereby ensuring normal starting of the vehicle.

[0053] Figure 2 This is a flow chart of another method for controlling a vehicle power failure provided by an embodiment of the present application. This method can be applied to a vehicle's body domain controller. Figure 2 , the method includes the following steps.

[0054] Step 201 : When the vehicle is in a powered-off state, if the number of times the low-voltage battery in the vehicle has been recharged after the power-off is greater than a preset number, the static current of the vehicle is obtained.

[0055] In the embodiment of the present application, the power-off state means that the vehicle's entire power supply is in the off state. In the power-off state, the vehicle's power battery stops supplying power to the vehicle, and the vehicle is powered by a low-voltage battery.

[0056] In the embodiment of the present application, the number of recharges refers to the total number of times the low-voltage battery is charged by the power battery when the vehicle is in the current power-off state.

[0057] It should be noted that when the number of times the low-voltage battery in the vehicle is recharged is greater than the preset number, the vehicle will be prohibited from sending a recharge request signal to charge the low-voltage battery. Therefore, when the number of times the low-voltage battery is recharged is greater than the preset number, the intelligent recharge cannot be triggered, thereby avoiding damage to the low-voltage battery caused by excessive recharge.

[0058] In an embodiment of the present application, the static current of the vehicle can be obtained after each charging is completed and the number of charging times is greater than a preset number.

[0059] In another embodiment of the present application, when the number of charging times is greater than a preset number and the state of charge of the power electricity is less than a preset threshold, the static current of the vehicle is obtained.

[0060] Among them, the static current of the whole vehicle refers to the total current output by the low-voltage battery to power the vehicle's low-voltage electrical equipment when the vehicle is not in use.

[0061] Step 202 : If the static current of the entire vehicle is greater than the preset first static current, determine a second static current provided by the low-voltage battery to each of the low-voltage electrical devices.

[0062] The preset first quiescent current can be set according to actual conditions, for example, the preset first quiescent current can be 500 mA. The second quiescent current is the current required by each low-voltage electrical device.

[0063] In an embodiment of the present application, the determined low-voltage electrical equipment may be at least one low-voltage electrical equipment, for example, the low-voltage electrical equipment may be one or more, and the number of the low-voltage electrical equipment may be set according to actual conditions.

[0064] It should be noted that if the static current of the entire vehicle is greater than the preset first static current, it means that the power consumption of the low-voltage electrical equipment in the current vehicle is large, which will cause the power of the low-voltage battery to drop significantly. Therefore, it is necessary to reduce the power consumption of the low-voltage battery by shutting down some low-voltage electrical equipment. This can effectively solve the problem of excessive discharge of the low-voltage battery, so that the low-voltage battery can ensure that the vehicle will not run out of power when parked for a long time, thereby ensuring the normal start-up of the vehicle.

[0065] The following is a detailed introduction on how to determine the low-voltage electrical equipment that needs to be shut down.

[0066] Step 203: Determine at least one target electrical device based on the second static current corresponding to each low-voltage electrical device.

[0067] In an embodiment of the present application, at least one target electrical device is used to reduce the static current consumed by the vehicle.

[0068] In the embodiments of the present application, Figure 3 As shown, based on the second static current corresponding to each low-voltage electrical device, at least one target electrical device is determined, including steps 2031 and 2032.

[0069] Step 2031: Sort the low-voltage electrical equipment according to the magnitude of the second static current to obtain the corresponding arrangement order of the low-voltage electrical equipment.

[0070] The first electrical devices may be sorted according to the magnitude of the second static current, and may be sorted in ascending order of current or in descending order of current.

[0071] Step 2032: Based on the arrangement order, select a preset number of low-voltage electrical devices with a large second static current as at least one target electrical device.

[0072] In an embodiment of the present application, the low-voltage electrical equipment selected is selected according to a pre-set number and in the order of the second static current from large to small. For example, the low-voltage electrical equipment is arranged in the order of current from large to small as follows: low-voltage electrical equipment 1, low-voltage electrical equipment 2, low-voltage electrical equipment 3, low-voltage electrical equipment 4 and low-voltage electrical equipment 5. The pre-set number is 2, then the first electrical equipment 1 and the low-voltage electrical equipment 2 are selected as the target electrical equipment.

[0073] In another embodiment of the present application, after selecting the low-voltage electrical devices, the total quiescent current required by the remaining low-voltage electrical devices is less than the preset first quiescent current. Therefore, the number of low-voltage electrical devices that can be selected can be determined based on the need to reduce the total quiescent current consumed and the second quiescent current required by each low-voltage electrical device.

[0074] In another embodiment of the present application, if Figure 4 As shown, based on the second static current corresponding to each low-voltage electrical device, at least one target electrical device is determined, including steps 2033 and 2034.

[0075] Step 2033: Sort the low-voltage electrical equipment according to the magnitude of the second static current to obtain a corresponding arrangement order of the low-voltage electrical equipment.

[0076] Step 2034 : Based on the arrangement order and the preset first set of electrical devices, a preset number of low-voltage electrical devices having a large second quiescent current and located in the first set of electrical devices are selected as at least one target electrical device.

[0077] The preset first electrical equipment set may be non-essential loads, and the non-essential loads may be comfort-type loads, such as vehicle lights, air conditioners, and other loads.

[0078] It should be noted that selecting a preset number of low-voltage electrical equipment with a large second static current and located in the first set of electrical equipment can reduce the static current consumed by the vehicle while keeping the necessary functions of the vehicle turned on.

[0079] Step 204: Control the low-voltage battery to not supply power to at least one target electrical device.

[0080] Step 205 : If the state of charge of the low-voltage battery is lower than a first preset threshold, control the power battery to charge the low-voltage battery.

[0081] In the embodiment of the present application, the first preset threshold can be set according to actual conditions. For example, the first preset threshold is 30%.

[0082] Below through Figure 5 For a detailed introduction to the structural diagram of the low-voltage battery charging system, see Figure 5 The system includes: a low-voltage battery 501, a body domain controller 502, a battery management system 503, a DC converter 504 and a power battery 505; the body domain controller 502 is connected to the battery management system 503 and the power battery 505 respectively, the input end of the DC converter 504 is connected to the power battery 505, and the output end of the DC converter 504 is connected to the low-voltage battery 501.

[0083] In an embodiment of the present application, the low-voltage battery is charged by the low-voltage battery charging system. Specifically, when the state of charge of the low-voltage battery is lower than a first preset threshold value, the body domain controller will determine whether it is currently in a high-voltage power-on state. If it is currently in a high-voltage power-on state, the body domain controller controls the power battery to start charging the low-voltage battery through a DC converter. If the vehicle is not in a high-voltage power-on state, an intelligent charging request is sent to the vehicle controller to enable the vehicle controller to control the vehicle to power on at high voltage. When the vehicle is in a high-voltage state, the body domain controller controls the power battery to start charging the low-voltage battery through a DC converter.

[0084] It should be noted that when the power battery is controlled to charge the low-voltage battery, the remaining power of the power battery is greater than the third preset threshold value to ensure that the remaining power of the power battery is sufficient to charge the low-voltage battery. When the remaining power of the power battery is less than the third preset threshold value, the remaining power of the power battery is insufficient to charge the low-voltage battery.

[0085] In some embodiments of the present application, a PID controller is used to control the power battery to charge the low-voltage battery. When the PID controller is used to control the power battery to charge the low-voltage battery, the charging voltage of the power battery to the low-voltage battery can be controlled by the PID controller so that the output voltage of the power battery will not have divergent oscillations. Specifically, a preset target state of charge and the actual state of charge of the low-voltage battery are used as inputs of the PID control, and the output of the PID controller is used to adjust the output current of the power battery. The output current and the preset target current are output to another PID controller, and the output of the PID controller is used to adjust the output voltage of the power battery. The output voltage is used to charge the low-voltage battery. The proportional gain, integral gain, and differential gain in the PID controller are preset based on experience.

[0086] Step 206 : If the state of charge of the low-voltage battery is lower than a second preset threshold and the charging function of the vehicle is invalid, control the low-voltage battery to lock power.

[0087] In an embodiment of the present application, the second preset threshold may be the lowest voltage value at which the vehicle can be normally started by the low-voltage battery. The second preset threshold is set according to actual conditions. For example, the second preset threshold may be 20%.

[0088] The vehicle's recharging function fails when the low-voltage battery fails to recharge a preset number of times within a preset time period, and the low-voltage battery is no longer recharged. A recharging failure occurs when the low-voltage battery voltage does not increase to a preset value within a preset duration while in the recharging state.

[0089] It should be noted that when the remaining power of the power battery is less than the third preset threshold, the remaining power of the power battery is insufficient to charge the low-voltage battery, which will cause the low-voltage battery to fail to charge. A power battery failure can also cause the low-voltage battery to fail to charge.

[0090] In the embodiment of the present application, the low-voltage battery will cut off the MOS tube of the main charging and discharging circuit inside the battery to lock the power, ensuring that the low-voltage battery is not damaged. All low-voltage power circuits of the entire vehicle are powered off, and the vehicle cannot perform any action or response, causing the low-voltage battery to enter a locked power state and stop supplying power, thereby preventing the low-voltage battery from continuing to discharge and preventing the vehicle from running out of power to the greatest extent.

[0091] The present application provides a method for controlling vehicle power loss. In the power-off state, if the number of times the low-voltage battery in the vehicle is recharged after the current power-off is greater than a preset number, then when the static current of the vehicle provided by the low-voltage battery to the low-voltage electrical equipment in the vehicle is greater than a preset first static current, a target electrical equipment is determined from the low-voltage electrical equipment, thereby controlling the low-voltage battery to stop supplying power to the target electrical equipment. In this way, when the power consumption of the low-voltage battery is large, the low-voltage electrical equipment powered by the low-voltage battery can be reduced, thereby reducing the power consumption of the low-voltage battery, causing the low-voltage battery to be power-off, thereby ensuring the normal start-up of the vehicle.

[0092] Figure 6 An embodiment of the present application provides a control device for a vehicle with low power, which includes: an acquisition module 601, a determination module 602 and a control module 603.

[0093] An acquisition module 601 is configured to acquire a vehicle static current when the vehicle is in a powered-off state and if the number of times the low-voltage battery in the vehicle has been recharged since the last power-off is greater than a preset number, where the vehicle static current is the total current output by the low-voltage battery to power the low-voltage electrical devices of the vehicle;

[0094] A determination module 602 is configured to determine at least one target electrical device from the low-voltage electrical devices if the static current of the vehicle is greater than a preset first static current;

[0095] The control module 603 is configured to control the low-voltage battery to not supply power to at least one target electrical device.

[0096] Optionally, the determination module 602 includes:

[0097] A first determining submodule, configured to determine a second static current provided by the low-voltage battery for each of the low-voltage electrical devices;

[0098] The second determining submodule is configured to determine at least one target electrical device based on the second static current corresponding to each low-voltage electrical device.

[0099] Optionally, the second determination submodule includes:

[0100] A sorting unit, configured to sort the low-voltage electrical equipment according to the magnitude of the second static current to obtain an arrangement order corresponding to the low-voltage electrical equipment;

[0101] The first determining unit is configured to select a preset number of low-voltage electrical devices having a large second static current as at least one target electrical device based on an arrangement order.

[0102] Optionally, the second determination submodule includes:

[0103] A sorting unit, configured to sort the low-voltage electrical equipment according to the magnitude of the second static current to obtain an arrangement order corresponding to the low-voltage electrical equipment;

[0104] The second determining unit is configured to select a preset number of low-voltage electrical devices having a large second static current and located in the first electrical device set as at least one target electrical device based on the arrangement order and the preset first electrical device set.

[0105] Optionally, the device further includes: a first control module, configured to control the power battery to charge the low-voltage battery if the state of charge of the low-voltage battery is lower than a first preset threshold.

[0106] Optionally, the device further includes: a second control module, configured to control the low-voltage battery to lock power if the state of charge of the low-voltage battery is lower than a second preset threshold and the vehicle's charging function fails.

[0107] The present application provides a method for controlling vehicle power loss. In the power-off state, if the number of times the low-voltage battery in the vehicle has been recharged after the current power-off is greater than a preset number, then when the vehicle static current provided by the low-voltage battery to the low-voltage electrical equipment in the vehicle is greater than a preset first static current, a target electrical equipment is determined from the low-voltage electrical equipment, thereby controlling the low-voltage battery to stop supplying power to the target electrical equipment. In this way, when the power consumption of the low-voltage battery is large, the low-voltage electrical equipment powered by the low-voltage battery can be reduced, thereby reducing the power consumption of the low-voltage battery, causing the low-voltage battery to be power-off, thereby ensuring the normal starting of the vehicle.

[0108] It is understood that the vehicle power-loss control device provided in the above embodiment is merely exemplified by the division of the above functional modules. In actual applications, the above functions can be distributed and completed by different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the vehicle power-loss control device and the vehicle power-loss control method provided in the above embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0109] An embodiment of the present application also provides a vehicle, which includes a processor and a memory, wherein the memory stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the operations performed by the vehicle power loss control method in the above aspect.

[0110] An embodiment of the present application also provides a computer storage medium, in which at least one instruction is stored. The instruction is loaded and executed by a processor to implement the operations performed by the vehicle power loss control method in the above aspect.

[0111] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0112] The above are merely exemplary embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for controlling a vehicle power shortage, characterized in that: The method comprises: When the vehicle is in a powered-off state, if the number of times the low-voltage battery in the vehicle has been recharged after the current power-off is greater than a preset number, obtaining the vehicle's entire static current, where the entire static current is the total current output by the low-voltage battery to power the vehicle's low-voltage electrical equipment; If the static current of the entire vehicle is greater than a preset first static current, determining at least one target electrical device from the low-voltage electrical devices; The low-voltage battery is controlled to stop supplying power to the at least one target electrical device.

2. The method according to claim 1, characterized in that The determining of at least one target electrical device from the low-voltage electrical devices includes: Determining a second quiescent current provided by the low-voltage battery for each of the low-voltage electrical devices; The at least one target electrical device is determined based on the second static current corresponding to each low-voltage electrical device.

3. The method according to claim 2, characterized in that The determining the at least one target electrical device based on the second static current corresponding to each low-voltage electrical device includes: Sorting the low-voltage electrical equipment according to the magnitude of the second static current to obtain an arrangement order corresponding to the low-voltage electrical equipment; Based on the arrangement order, a preset number of low-voltage electrical devices having a large second quiescent current are selected as the at least one target electrical device.

4. The method according to claim 2, characterized in that The determining the at least one target electrical device based on the second static current corresponding to each low-voltage electrical device includes: Sorting the low-voltage electrical equipment according to the magnitude of the second static current to obtain an arrangement order corresponding to the low-voltage electrical equipment; Based on the arrangement order and a preset first set of electrical users, a preset number of low-voltage electrical users having a large second static current and located in the first set of electrical users are selected as the at least one target electrical user.

5. The method according to claim 1, wherein The method further includes: if the state of charge of the low-voltage battery is lower than a first preset threshold, controlling the power battery to charge the low-voltage battery.

6. The method according to claim 1, wherein The method further includes: if the state of charge of the low-voltage battery is lower than a second preset threshold and the charging function of the vehicle fails, controlling the low-voltage battery to lock power.

7. A vehicle power-loss control device, characterized in that: The device comprises: an acquisition module, configured to acquire a whole vehicle static current of the vehicle when the vehicle is in a powered-off state and if the number of times the low-voltage battery in the vehicle has been recharged since the current power-off is greater than a preset number, wherein the whole vehicle static current is the total current output by the low-voltage battery to power the low-voltage electrical equipment of the vehicle; a determination module, configured to determine at least one target electrical device from the low-voltage electrical devices if the static current of the entire vehicle is greater than a preset first static current; The control module is used to control the low-voltage battery to stop supplying power to the at least one target electrical device.

8. The device according to claim 7, characterized in that The determining module includes: A first determining submodule, configured to determine a second static current provided by the low-voltage battery for each of the low-voltage electrical devices; The second determining submodule is configured to determine the at least one target electrical device based on the second static current corresponding to each low-voltage electrical device.

9. A vehicle, characterized in that: The vehicle includes a processor and a memory, wherein the memory stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the operation performed by the vehicle power loss control method according to any one of claims 1 to 6.

10. A computer storage medium, characterized in that The computer storage medium stores at least one instruction, which is loaded and executed by the processor to implement the operation performed by the vehicle power failure control method according to any one of claims 1 to 6.

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