Vehicle battery charging method and related equipment

Abstract

The present invention discloses a method for charging a vehicle battery and related devices, which relates to the field of vehicle control and mainly solves the problem that there is a lack of a better method for charging the vehicle battery in the case of long-term parking of the vehicle. The method includes: obtaining the voltage of the vehicle storage battery and the power of the power battery, wherein the vehicle storage battery is used to supply power to the accessories of the vehicle, and the power battery is used to supply power for the movement of the vehicle; determining a charging strategy based on the voltage of the vehicle storage battery and the power of the power battery. The present invention is used in the process of charging the vehicle battery.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control, and particularly to a method for charging a vehicle battery and related devices. Background Art

[0002] In the scenario of long-term parking of HEV hybrid vehicles, on the one hand, it will cause the storage battery and the power battery to lose power, making it difficult to start normally, which causes inconvenience to the vehicle owner. On the other hand, it will also cause damage to the batteries (including the storage battery and the power battery, mainly the power battery), which is not conducive to the service life of the vehicle. Therefore, if the storage battery and the power battery of the vehicle lose power, it will directly cause the vehicle to fail to go high voltage, and only by connecting an external charger and a power battery after-sales engineer to forcibly close the relay can charging be carried out, which is very troublesome. Summary of the Invention

[0003] In view of the above problems, the present invention provides a method for charging a vehicle battery and related devices, mainly aiming to solve the problem that there is a lack of a better method for charging the vehicle battery in the case of long-term parking of the vehicle.

[0004] To solve the above at least one technical problem, in a first aspect, the present invention provides a method for charging a vehicle battery, the method comprising:

[0005] Obtain the voltage of the vehicle storage battery and the power of the power battery, wherein the vehicle storage battery is used to supply power to the accessories of the vehicle, and the power battery is used to supply power for the movement of the vehicle;

[0006] Determine a charging strategy based on the voltage of the vehicle storage battery and the power of the power battery.

[0007] Optionally, the determining a charging strategy based on the voltage of the vehicle storage battery and the power of the power battery includes:

[0008] In the case where the voltage of the vehicle storage battery is less than a preset voltage value, determine the charging strategy of the vehicle storage battery based on the power of the vehicle power battery.

[0009] Optionally, the determining a charging strategy based on the voltage of the vehicle storage battery and the power of the power battery includes:

[0010] In the case where the power of the vehicle power battery is less than a first preset power value, send a charging request to the user.

[0011] Optionally, the determining the charging strategy of the vehicle storage battery based on the power of the vehicle power battery in the case where the voltage of the vehicle storage battery is less than a preset voltage value includes:

[0012] When the voltage of the vehicle battery is less than the preset voltage value and the power of the vehicle power battery is greater than or equal to the second preset power value, the vehicle power battery is used to charge the vehicle battery.

[0013] When the voltage of the vehicle battery is less than the preset voltage value and the power of the vehicle power battery is less than the second preset power value, a charging request is sent to the user.

[0014] Optionally, when the voltage of the vehicle battery is less than the preset voltage value and the power of the vehicle power battery is greater than or equal to the second preset power value, charging the vehicle battery with the vehicle power battery includes:

[0015] When charging the vehicle battery with the vehicle power battery, continuously obtain the power of the vehicle power battery;

[0016] When the power of the vehicle power battery is equal to the first preset power value, the vehicle power battery stops charging the vehicle battery.

[0017] Optionally, the charging request is a request to start the vehicle engine for charging.

[0018] Optionally, the method further includes:

[0019] When the voltage of the vehicle battery is greater than or equal to the preset voltage value and the power of the vehicle power battery is greater than or equal to the first preset power value, obtain the voltage of the vehicle battery and the power of the power battery again after a preset period interval.

[0020] In a second aspect, an embodiment of the present invention further provides a vehicle battery charging device, including:

[0021] An acquisition unit for acquiring the voltage of the vehicle battery and the power of the power battery;

[0022] A determination unit for determining a charging strategy based on the voltage of the vehicle battery and the power of the power battery.

[0023] To achieve the above object, according to a third aspect of the present invention, there is provided a computer-readable storage medium, the computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the steps of the above vehicle battery charging method are implemented.

[0024] To achieve the above object, according to a fourth aspect of the present invention, there is provided an electronic device, including at least one processor and at least one memory connected to the processor; wherein, the processor is used to call program instructions in the memory to execute the steps of the above vehicle battery charging method.

[0025] With the above technical solution, for the problem that in the case of long-term parking of a vehicle, there is a lack of a better method for charging the vehicle battery, the vehicle battery charging method and related equipment provided by the present invention obtain the voltage of the vehicle's battery and the power of the power battery. Among them, the above vehicle battery is used to supply power to the accessories of the vehicle, and the above power battery is used to supply power for the movement of the vehicle; a charging strategy is determined based on the voltage of the vehicle battery and the power of the power battery. In the above solution, charging the vehicle in a timely manner based on the voltage of the vehicle battery and the power of the power battery can avoid the situation where the vehicle is parked for a long time, the user does not use the vehicle and charge it, resulting in too low voltage of the vehicle battery and thus the accessories of the vehicle cannot be used, or the power of the power battery is too low and thus the vehicle cannot start with high voltage. It also avoids the impact of the vehicle battery being discharged on the health of the vehicle battery.

[0026] Correspondingly, the vehicle battery charging device, equipment and computer-readable storage medium provided by the embodiments of the present invention also have the above technical effects.

[0027] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are specifically given below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. And throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0029] Figure 1 A flowchart showing a vehicle battery charging method provided by an embodiment of the present invention is shown;

[0030] Figure 2 A schematic block diagram showing the composition of a vehicle battery charging device provided by an embodiment of the present invention is shown;

[0031] Figure 3 A schematic block diagram showing the composition of a vehicle battery charging electronic device provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be fully conveyed to those skilled in the art.

[0033] To solve the problem that there is a lack of a better method for charging the vehicle battery in the case of long-term vehicle parking, an embodiment of the present invention provides a method for charging a vehicle battery, as Figure 1 shown, the method includes:

[0034] S101. Obtain the voltage of the vehicle's battery and the power of the power battery. Among them, the above-mentioned vehicle battery is used to supply power to the accessories of the vehicle, and the above-mentioned power battery is used to supply power for the movement of the vehicle;

[0035] Exemplarily, the above-mentioned vehicle battery being used to supply power to the accessories of the vehicle includes: supplying power to the windshield wipers, supplying power to the windows and skylights, and supplying power to the horn, etc., which are not listed one by one here. The above-mentioned power battery is used as a driving power source to supply power for the movement of the vehicle. By obtaining the above data, a data basis is provided for subsequent charging.

[0036] S102. Determine a charging strategy based on the above-mentioned vehicle battery voltage and the power of the power battery.

[0037] Exemplarily, this solution determines whether the battery and the power battery need to be charged and how to charge according to the battery voltage and the power battery, achieving the avoidance of the situation where the vehicle is parked for a long time, the user does not use the vehicle and charge it, resulting in too low a voltage of the vehicle battery and thus the accessories of the vehicle cannot be used, or too low a power of the power battery and thus the vehicle cannot start with high voltage, and also avoiding the impact of the vehicle battery being discharged on the health of the vehicle battery.

[0038] By means of the above technical solution, for the problem that there is a lack of a better method for charging the vehicle battery in the case of long-term vehicle parking, the present invention provides a method for charging a vehicle battery. The present invention obtains the voltage of the vehicle's battery and the power of the power battery. Among them, the above-mentioned vehicle battery is used to supply power to the accessories of the vehicle, and the above-mentioned power battery is used to supply power for the movement of the vehicle; a charging strategy is determined based on the above-mentioned vehicle battery voltage and the power of the power battery. In the above solution, the vehicle is charged in a timely manner based on the vehicle battery voltage and the power of the power battery, so as to avoid the situation where the vehicle is parked for a long time, the user does not use the vehicle and charge it, resulting in too low a voltage of the vehicle battery and thus the accessories of the vehicle cannot be used, or too low a power of the power battery and thus the vehicle cannot start with high voltage, and also avoiding the impact of the vehicle battery being discharged on the health of the vehicle battery.

[0039] In one embodiment, determining a charging strategy based on the vehicle battery voltage and the power battery power includes:

[0040] When the vehicle battery voltage is less than a preset voltage value, determine the charging strategy for the vehicle battery based on the power of the vehicle power battery.

[0041] Exemplarily, the preset voltage value can be 12V, which is not specifically limited here. If the battery voltage is less than the preset voltage, it proves that the battery voltage is not sufficient to supply power to the vehicle accessories when the vehicle starts. At this time, it is necessary to determine which method to use to charge the vehicle battery based on the comparison result with the power of the power battery.

[0042] In one embodiment, determining a charging strategy based on the vehicle battery voltage and the power battery power includes:

[0043] When the power of the vehicle power battery is less than a first preset power value, send a charging request to the user.

[0044] Exemplarily, the first preset power value is the evaluation basis for determining whether to charge the vehicle power battery. If the power of the vehicle power battery is less than the first preset power value, it proves that the power of the power battery cannot support the vehicle to move when starting. At this time, a charging request is sent to the user to remind the user that the power of the vehicle power battery is too low and needs to be charged, thus avoiding the situation that the power of the vehicle power battery is exhausted and the vehicle cannot be driven and started without the user's knowledge.

[0045] In one embodiment, when the vehicle battery voltage is less than a preset voltage value, determining the charging strategy for the vehicle battery based on the power of the vehicle power battery includes:

[0046] When the vehicle battery voltage is less than the preset voltage value and the power of the vehicle power battery is greater than or equal to a second preset power value, charge the vehicle battery through the vehicle power battery.

[0047] When the vehicle battery voltage is less than the preset voltage value and the power of the vehicle power battery is less than the second preset power value, send a charging request to the user.

[0048] Exemplarily, the above second preset power value is a criterion for judging whether the remaining power of the vehicle power battery is sufficient to support charging the vehicle battery. If the voltage of the vehicle battery is less than the preset voltage value, it proves that the vehicle battery needs to be charged. At this time, if the power of the vehicle power battery is greater than or equal to the second preset power value, it proves that the power of the vehicle power battery is sufficient to charge the vehicle battery. At this time, the vehicle battery is directly charged by the vehicle power battery, without the need to start other charging mechanisms or notify the user, reducing the disturbance to the user and ensuring that the vehicle battery has sufficient power; if the voltage of the vehicle battery is not enough to support the normal use of vehicle accessories when starting the vehicle next time, and the vehicle power battery is not enough to support charging the vehicle battery, a charging request is sent to the user at this time to charge the vehicle battery.

[0049] Exemplarily, after receiving the power shortage information, the user can issue an instruction to the vehicle TBOX through means such as an APP. The TBOX transmits the charging request to the vehicle control unit VCU, and the VCU issues it to each subsystem controller to execute the charging instruction, including the engine, generator, power battery, motor controller, DCDC, to control the high voltage on the battery, start the engine to drive the generator, and charge the battery and / or the power battery through the DCDC.

[0050] In one embodiment, when the voltage of the vehicle battery is less than the preset voltage value and the power of the vehicle power battery is greater than or equal to the second preset power value, charging the vehicle battery by the vehicle power battery includes:

[0051] When charging the vehicle battery by the vehicle power battery, continuously obtain the power of the vehicle power battery;

[0052] When the power of the vehicle power battery is equal to the first preset power value, the vehicle power battery stops charging the vehicle battery.

[0053] Exemplarily, it should be noted that when charging the vehicle battery by the vehicle power battery, continuously obtain the power of the vehicle power battery. If the power of the vehicle power battery continuously decreases due to charging the battery and drops to equal the first preset power value, it proves that if the vehicle battery continues to be charged, the power of the vehicle power battery will not be able to support the next vehicle driving. At this time, it is necessary to stop charging the vehicle battery, thus ensuring that while charging the vehicle battery by the vehicle power battery, the power of the power battery is still concerned to prevent the situation that the vehicle power battery is too low due to overcharging the vehicle battery and cannot provide power for the next start and driving of the vehicle.

[0054] In one embodiment, the above charging request is a request to start the vehicle engine for charging.

[0055] Exemplarily, an automotive engine is a device that provides power for a vehicle. Therefore, when the power of the vehicle's power battery is insufficient and / or the voltage of the vehicle's storage battery is insufficient, after sending a power replenishment request to the user, it is mainly necessary to request the user to start the vehicle engine for power replenishment.

[0056] In one embodiment, the above method further includes:

[0057] When the above vehicle storage battery voltage is greater than or equal to a preset voltage value and the above vehicle power battery power is greater than or equal to a first preset power value, the vehicle storage battery voltage and the power battery power are acquired again after a preset period interval.

[0058] Exemplarily, if the vehicle storage battery voltage is sufficient to support the vehicle's accessories for the next start and the vehicle power battery power is sufficient to support the mobile power supply for the user's next start, then there is no need to replenish the power of the vehicle storage battery and the power battery this time. Therefore, this solution sets a preset period, which can be one day, three days, one week, etc., depending on the specific situation. After the preset period interval, the voltage of the above vehicle storage battery and the power battery power are acquired again, and then it is determined again whether power replenishment is required. Since long-term storage will cause the performance of the storage battery and the power battery to decline, and the cost of the HEV power battery is high, long-term storage will cause irreversible damage. Therefore, through this method, it can be ensured that a vehicle stored for a long time can still be started as a whole vehicle, and it is beneficial to activate the chemical substances inside the battery, which is conducive to the battery maintaining its performance and extending the service life of the battery.

[0059] Further, as an implementation of the above Figure 1 shown method, an embodiment of the present invention further provides a vehicle battery power replenishment device for implementing the above Figure 1 shown method. This device embodiment corresponds to the foregoing method embodiment. For the convenience of reading, the details in the foregoing method embodiment will not be described one by one in this device embodiment. However, it should be clear that the device in this embodiment can correspondingly implement all the contents in the foregoing method embodiment. As Figure 2 shown, the device includes: an acquisition unit 21 and a determination unit 22, where

[0060] The acquisition unit 21 is used to acquire the vehicle storage battery voltage and the power battery power;

[0061] The determination unit 22 is used to determine a power replenishment strategy based on the above vehicle storage battery voltage and the power battery power.

[0062] Exemplarily, the above determining a power replenishment strategy based on the above vehicle storage battery voltage and the power battery power includes:

[0063] When the voltage of the vehicle battery is less than the preset voltage value, determine the charging strategy for the vehicle battery based on the power of the vehicle power battery.

[0064] Exemplarily, determining the charging strategy based on the voltage of the vehicle battery and the power of the power battery includes:

[0065] When the power of the vehicle power battery is less than the first preset power value, send a charging request to the user.

[0066] Exemplarily, when the voltage of the vehicle battery is less than the preset voltage value, determining the charging strategy for the vehicle battery based on the power of the vehicle power battery includes:

[0067] When the voltage of the vehicle battery is less than the preset voltage value and the power of the vehicle power battery is greater than or equal to the second preset power value, charge the vehicle battery with the vehicle power battery.

[0068] When the voltage of the vehicle battery is less than the preset voltage value and the power of the vehicle power battery is less than the second preset power value, send a charging request to the user.

[0069] Exemplarily, when the voltage of the vehicle battery is less than the preset voltage value and the power of the vehicle power battery is greater than or equal to the second preset power value, charging the vehicle battery with the vehicle power battery includes:

[0070] When charging the vehicle battery with the vehicle power battery, continuously obtain the power of the vehicle power battery.

[0071] When the power of the vehicle power battery is equal to the first preset power value, the vehicle power battery stops charging the vehicle battery.

[0072] Exemplarily, the charging request is to request starting the vehicle engine for charging.

[0073] Exemplarily, the above unit is further configured to:

[0074] When the voltage of the vehicle battery is greater than or equal to the preset voltage value and the power of the vehicle power battery is greater than or equal to the first preset power value, obtain the voltage of the vehicle battery and the power of the power battery again after a preset period interval.

[0075] With the above technical solution, for the problem that in the case of long-term parking of a vehicle, there is a lack of a better method for charging the vehicle battery, the vehicle battery charging device provided by the present invention obtains the voltage of the vehicle battery and the power of the power battery. Among them, the above vehicle battery is used to supply power to the accessories of the vehicle, and the above power battery is used to supply power for the movement of the vehicle; a charging strategy is determined based on the above vehicle battery voltage and the power of the power battery. In the above solution, charging the vehicle in a timely manner based on the vehicle battery voltage and the power of the power battery can avoid the situation where the vehicle is parked for a long time, the user does not use the vehicle and charge it, resulting in too low a voltage of the vehicle battery and thus the accessories of the vehicle cannot be used, or the power of the power battery is too low and thus the vehicle cannot start with high voltage. It also avoids the impact of the vehicle battery being discharged on the health of the vehicle battery.

[0076] The processor contains a kernel, and the kernel retrieves the corresponding program unit from the memory. One or more kernels can be set, and by adjusting the kernel parameters, a vehicle battery charging method can be realized, which can solve the problem that in the case of long-term parking of a vehicle, there is a lack of a better method for charging the vehicle battery.

[0077] The embodiment of the present invention provides a computer-readable storage medium. The above computer-readable storage medium includes a stored program, and when the program is executed by a processor, the above vehicle battery charging method is realized.

[0078] The embodiment of the present invention provides a processor. The above processor is used to run a program, and when the above program runs, the above vehicle battery charging method is executed.

[0079] The embodiment of the present invention provides an electronic device. The above electronic device includes at least one processor and at least one memory connected to the above processor; among them, the above processor is used to call the program instructions in the above memory and execute the vehicle battery charging method as described above.

[0080] The embodiment of the present invention provides an electronic device 30, as Figure 3 shown, the electronic device includes at least one processor 301, at least one memory 302 connected to the processor, and a bus 303; among them, the processor 301 and the memory 302 complete communication with each other through the bus 303; the processor 301 is used to call the program instructions in the memory to execute the above vehicle battery charging method.

[0081] The intelligent electronic device herein can be a PC, a PAD, a mobile phone, etc.

[0082] The present application also provides a computer program product which, when executed on a process management electronic device, is adapted to execute a program initialized with the following method steps: obtaining the voltage of the vehicle battery and the power of the power battery, wherein the vehicle battery is used to supply power to the accessories of the vehicle, and the power battery is used to supply power for the movement of the vehicle; determining a charging strategy based on the voltage of the vehicle battery and the power of the power battery.

[0083] Further, the determining the charging strategy based on the voltage of the vehicle battery and the power of the power battery includes:

[0084] In the case where the voltage of the vehicle battery is less than a preset voltage value, determining the charging strategy of the vehicle battery based on the power of the vehicle power battery.

[0085] Further, the determining the charging strategy based on the voltage of the vehicle battery and the power of the power battery includes:

[0086] In the case where the power of the vehicle power battery is less than a first preset power value, sending a charging request to the user.

[0087] Further, in the case where the voltage of the vehicle battery is less than a preset voltage value, the determining the charging strategy of the vehicle battery based on the power of the vehicle power battery includes:

[0088] In the case where the voltage of the vehicle battery is less than a preset voltage value and the power of the vehicle power battery is greater than or equal to a second preset power value, charging the vehicle battery with the vehicle power battery,

[0089] In the case where the voltage of the vehicle battery is less than a preset voltage value and the power of the vehicle power battery is less than the second preset power value, sending a charging request to the user.

[0090] Further, in the case where the voltage of the vehicle battery is less than a preset voltage value and the power of the vehicle power battery is greater than or equal to a second preset power value, charging the vehicle battery with the vehicle power battery includes:

[0091] When charging the vehicle battery with the vehicle power battery, continuously obtaining the power of the vehicle power battery;

[0092] In the case where the power of the vehicle power battery is equal to the first preset power value, the vehicle power battery stops charging the vehicle battery.

[0093] Further, the charging request is a request to start the vehicle engine for charging.

[0094] Further, the method further includes:

[0095] When the vehicle battery voltage is greater than or equal to a preset voltage value and the vehicle power battery power is greater than or equal to a first preset power value, the vehicle battery voltage and the power battery power are acquired again after a preset period interval.

[0096] This application is described with reference to the flowcharts and / or block diagrams of methods, electronic devices (systems), and computer program products according to embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, and the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable process management electronic devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable process management electronic devices generate a device for implementing the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 or multiple blocks.

[0097] In a typical configuration, an electronic device includes one or more processors (CPUs), a memory, and a bus. The electronic device may also include an input / output interface, a network interface, etc.

[0098] The memory may include non-permanent memory in a computer-readable medium, in the form of random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least one storage chip. The memory is an example of a computer-readable medium.

[0099] Computer-readable media includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer-readable storage media for a computer include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory, or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD), or other optical storage, magnetic cassette tapes, magnetic disk storage, or other magnetic storage electronic devices, or any other non-transmission media that can be used to store information accessible by a computing electronic device. As defined herein, computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.

[0100] It should also be noted that the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, commodity or electronic device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, commodity or electronic device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, commodity or electronic device comprising the element.

[0101] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, system or computer program product. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0102] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A method for charging a vehicle battery, which is used for a vehicle, characterized in that, Including: Obtain the vehicle battery voltage and the power battery power. Among them, the vehicle battery is used to supply power to the accessories of the vehicle, and the power battery is used to supply power for the movement of the vehicle; Determine a charging strategy based on the vehicle battery voltage and the power battery power; The determining the charging strategy based on the vehicle battery voltage and the power battery power includes: When the vehicle battery voltage is less than a preset voltage value, determine the charging strategy of the vehicle battery based on the vehicle power battery power; The determining the charging strategy of the vehicle battery based on the vehicle power battery power when the vehicle battery voltage is less than a preset voltage value includes: When the vehicle battery voltage is less than a preset voltage value and the vehicle power battery power is greater than or equal to a second preset power value, charge the vehicle battery through the vehicle power battery. Among them, the second preset power value is used to judge whether the remaining power of the vehicle power battery is sufficient to support charging the vehicle battery; When the vehicle battery voltage is less than a preset voltage value and the vehicle power battery power is less than the second preset power value, send a charging request to the user; The charging the vehicle battery through the vehicle power battery when the vehicle battery voltage is less than a preset voltage value and the vehicle power battery power is greater than or equal to a second preset power value includes: When charging the vehicle battery through the vehicle power battery, continuously obtain the vehicle power battery power; When the vehicle power battery power is equal to a first preset power value, the vehicle power battery stops charging the vehicle battery. Among them, the first preset power value is used to judge whether it is necessary to charge the vehicle power battery; When the vehicle battery voltage is greater than or equal to the preset voltage value and the vehicle power battery power is greater than or equal to the first preset power value, obtain the vehicle battery voltage and the power battery power again after a preset period interval.

2. The method according to claim 1, characterized in that The determining the charging strategy based on the vehicle battery voltage and the power battery power includes: When the vehicle power battery power is less than the first preset power value, send a charging request to the user.

3. The method according to claim 2, wherein The charging request is a request to start the vehicle engine for charging.

4. A vehicle battery charging device, characterized in that An acquisition unit, configured to acquire the vehicle battery voltage and the power battery power; A determination unit, configured to determine a charging strategy based on the vehicle battery voltage and the power battery power; The determining the charging strategy based on the vehicle battery voltage and the power battery power includes: When the vehicle battery voltage is less than a preset voltage value, determine the charging strategy of the vehicle battery based on the vehicle power battery power; The determining the charging strategy of the vehicle battery based on the vehicle power battery power when the vehicle battery voltage is less than a preset voltage value includes: When the voltage of the vehicle battery is less than a preset voltage value and the power of the vehicle power battery is greater than or equal to a second preset power value, the vehicle power battery is used to charge the vehicle battery, where the second preset power value is used to determine whether the remaining power of the vehicle power battery is sufficient to support charging the vehicle battery; When the voltage of the vehicle battery is less than a preset voltage value and the power of the vehicle power battery is less than the second preset power value, a charging request is sent to the user; The step of using the vehicle power battery to charge the vehicle battery when the voltage of the vehicle battery is less than a preset voltage value and the power of the vehicle power battery is greater than or equal to a second preset power value includes: When charging the vehicle battery with the vehicle power battery, continuously obtain the power of the vehicle power battery; When the power of the vehicle power battery is equal to a first preset power value, the vehicle power battery stops charging the vehicle battery, where the first preset power value is used to determine whether the vehicle power battery needs to be charged; When the voltage of the vehicle battery is greater than or equal to a preset voltage value and the power of the vehicle power battery is greater than or equal to a first preset power value, the voltage of the vehicle battery and the power of the power battery are obtained again after a preset period interval.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, where when the program is executed by a processor, the steps of the vehicle battery charging method according to any one of claims 1 to 3 are implemented.

6. An electronic device, characterized in that, The electronic device includes at least one processor and at least one memory connected to the processor; where the processor is used to call program instructions in the memory and execute the steps of the vehicle battery charging method according to any one of claims 1 to 3.

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