Vehicle-mounted battery protection method and device, electronic equipment and storage medium

Abstract

The invention discloses a vehicle-mounted battery protection method and device, electronic equipment and a storage medium. The method comprises the steps that the output power of a vehicle-mounted battery is monitored; if the output power is larger than the first preset threshold value, a power supply mos tube of a target vehicle-mounted electric appliance is controlled to be disconnected, and the target vehicle-mounted electric appliance is an electric appliance which is arranged in the vehicle and is irrelevant to the vehicle driving function; if it is detected that the output power of the vehicle-mounted battery of the controlled vehicle is smaller than a second preset threshold value, the power supply mos transistor of the target vehicle-mounted electric appliance is controlled to be closed. According to the technical scheme provided by the embodiment of the invention, the problem of potential safety hazards caused by insufficient low-voltage power supply due to over-limit of the vehicle-mounted electric appliance is reduced, and the aging of the vehicle-mounted battery caused by over-discharge of the vehicle-mounted battery can be avoided.

Description

Technical Field

[0001] The present disclosure belongs to the field of vehicle processing technology, and in particular, relates to a vehicle-mounted battery protection method, device, electronic equipment and storage medium. Background Art

[0002] In the related art, when a vehicle is driving, due to the large number of on-board electrical appliances turned on in the vehicle, it will cause the DCDC (DC-to-DC converter) power to exceed the limit problem. The DCDC power refers to the output power of the DC / DC converter.

[0003] After the DCDC power exceeds the limit, the vehicle battery continues to discharge for a long time, causing the vehicle battery to be discharged too deeply and thus causing the vehicle battery life to decay. In addition, after the DCDC power exceeds the limit, in the event of emergency braking, the steering condition may have insufficient power, causing the steering angle and braking distance to exceed the user deviation, and the safety performance is low. Summary of the invention

[0004] The disclosed embodiments provide a solution to solve the problem in the related art that after the DCDC power exceeds the limit, the vehicle battery continues to discharge for a long time, resulting in the vehicle battery being discharged too deeply and causing the vehicle battery life to decay, thereby resulting in lower vehicle safety performance.

[0005] In a first aspect, the present disclosure provides a vehicle battery protection method, the method comprising:

[0006] Monitor the output power of the vehicle battery;

[0007] If the output power is greater than a first preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be disconnected, and the target vehicle-mounted electrical appliance is an electrical appliance installed in the vehicle and has nothing to do with the vehicle's driving function;

[0008] If it is detected that the output power of the vehicle-mounted battery of the controlled vehicle is less than the second preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be turned off.

[0009] In a second aspect, the present disclosure provides a vehicle-mounted battery protection device, the device comprising:

[0010] A monitoring unit, used to monitor the output power of the vehicle battery;

[0011] a disconnection unit, configured to control the power supply MOSFET of a target vehicle-mounted electrical appliance to disconnect if the output power is greater than a first preset threshold value, wherein the target vehicle-mounted electrical appliance is an electrical appliance arranged in the vehicle and has nothing to do with the vehicle driving function;

[0012] The shut-down unit is used to control the power supply MOSFET of the target vehicle-mounted electrical appliance to shut down if it is detected that the output power of the vehicle-mounted battery of the controlled vehicle is less than a second preset threshold.

[0013] In a third aspect, the present disclosure provides an electronic device, including:

[0014] Processor; and

[0015] A memory, configured to store executable instructions of the processor;

[0016] The processor is configured to execute any method in the first aspect or any possible implementation of the first aspect by executing the executable instructions.

[0017] In a fourth aspect, an embodiment of the present disclosure provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program implements any method in the first aspect or any possible implementation of the first aspect.

[0018] The technical solution provided by the present disclosure monitors the output power of the vehicle battery; if the output power is greater than a first preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be disconnected, and the target vehicle electrical appliance is an electrical appliance installed in the vehicle and has nothing to do with the vehicle's driving function; if it is detected that the output power of the vehicle battery after the control is less than a second preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be turned off. The technical solution provided by each embodiment of the present disclosure can be used to monitor the output power of the vehicle battery. If the output power is greater than the first preset threshold, that is, the vehicle battery has an over-limit problem, the electrical appliances in the vehicle that are not related to the vehicle's driving function are controlled to disconnect their power supply MOSFETs, thereby reducing the use of vehicle electrical appliances and solving the over-limit problem of the vehicle battery. After the output power is less than the second preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be turned off, thereby improving the performance of the vehicle battery and greatly improving the safety performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 A schematic diagram of a process flow of a vehicle battery protection method provided by an embodiment of the present disclosure;

[0021] Figure 2A schematic diagram of the structure of a vehicle-mounted battery protection device provided by an embodiment of the present disclosure;

[0022] Figure 3 A schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

[0024] The terms "first" and "second" and the like in the specification, claims, and drawings of the disclosed embodiments are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the disclosed embodiments described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0025] The vehicle battery protection method provided by the embodiment of the present disclosure can be run on a terminal device or a server. The terminal device can be a vehicle controller. The server can be an independent physical server, a server cluster or a distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms.

[0026] In the related art, when a vehicle is driving, due to the large number of on-board electrical appliances turned on in the vehicle, it will cause the DCDC (DC-to-DC converter) power to exceed the limit problem. The DCDC power refers to the output power of the DC / DC converter.

[0027] After the DCDC power exceeds the limit, the vehicle battery continues to discharge for a long time, causing the vehicle battery to be discharged too deeply and thus causing the vehicle battery life to decay. In addition, after the DCDC power exceeds the limit, in the event of emergency braking, the steering condition may have insufficient power, causing the steering angle and braking distance to exceed the user deviation, and the safety performance is low.

[0028] The following specific embodiments are used to describe in detail the technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0029] Figure 1 This is a flow chart of a vehicle battery protection method provided by an exemplary embodiment of the present disclosure. The method can be applied to various devices with data processing functions. Taking the method applied to a vehicle controller as an example, the solution at least includes the following steps S101-S103:

[0030] S101, monitoring the output power of the vehicle battery.

[0031] In some embodiments, after the vehicle is powered on, the output power of the on-board battery in the vehicle is monitored in real time.

[0032] The output power is determined as follows:

[0033] The current and voltage of the vehicle battery are determined, and then the output power of the vehicle battery is determined according to the voltage and current.

[0034] In other embodiments, a power detector may be provided on the vehicle battery to detect the output power of the vehicle battery. The output power of the vehicle battery may also be detected in other ways, which will not be elaborated here.

[0035] S102: If the output power is greater than a first preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be disconnected.

[0036] In some embodiments, the target vehicle-mounted electrical appliances are electrical appliances installed in the vehicle and are not related to the driving function of the vehicle, such as a vehicle-mounted radio, a vehicle-mounted stereo, a vehicle-mounted air conditioner, and the like.

[0037] In some embodiments, if the output power is greater than a first preset threshold, the power supply MOS tube of the target vehicle electrical appliance is controlled to be disconnected, including: if the output power is greater than the first preset threshold, after a first preset time period, the power supply MOS tube of the target vehicle electrical appliance is controlled to be disconnected.

[0038] Specifically, the first preset time period may be ten seconds or thirty seconds. The specific time period may be set according to actual needs and will not be described in detail here.

[0039] In some embodiments, if the first preset time period is ten seconds, after determining that the output power is greater than the first preset threshold, the power supply MOSFET of the target vehicle electrical appliance is disconnected after a countdown of ten seconds.

[0040] In some embodiments, the method further includes: if it is detected that the output power is greater than the first preset threshold, an icon for reminding the user that the vehicle battery is out of limit is displayed on the desktop of the vehicle terminal.

[0041] Specifically, in an actual vehicle, a display screen is provided on the vehicle terminal, so after detecting that the output power is greater than the first preset threshold, an icon for reminding the user that the vehicle battery is over-limit is displayed on the desktop of the display screen. For example, the text "The low-voltage electrical load is too high, and some comfort loads will be limited" is displayed on the desktop.

[0042] In other embodiments, the method further includes: if it is detected that the output power is greater than the first preset threshold, controlling the vehicle audio to emit a prompt sound to remind the user that the vehicle battery is out of limit.

[0043] In some embodiments, the method further includes: sorting the multiple vehicle electrical appliances included in the target vehicle electrical appliances according to priority.

[0044] In the related art, a vehicle is equipped with various electrical appliances. According to the needs of users, the priorities of the onboard electrical appliances can be sorted from high to low. For example, if there are onboard audio, onboard air conditioning, onboard radio, and onboard video, according to the needs of users, they can be sorted from high to low: onboard audio, onboard radio, onboard video, and onboard air conditioning.

[0045] In some embodiments, if the output power is greater than a first preset threshold, the power supply MOS tube of the target vehicle electrical appliance is controlled to be disconnected, including: if the output power is greater than the first preset threshold, the power supply MOS tube of the vehicle electrical appliance with the highest priority is controlled to be disconnected.

[0046] Specifically, taking the above-mentioned sorting as an example, if the output power is greater than the first preset threshold, the power supply MOS tube of the vehicle audio is controlled to be disconnected.

[0047] In some embodiments, the method also includes: if it is detected that the output power of the vehicle's onboard battery after control is greater than the first preset threshold, the power supply MOSFET of the next priority vehicle electrical appliance is disconnected until the output power of the vehicle's onboard battery after control is less than the second preset threshold.

[0048] Specifically, continuing to take the disconnection of the power supply MOS tube of the vehicle electrical appliance with the highest control priority as an example, after the power supply MOS tube of the vehicle electrical appliance with the highest control priority is disconnected, if it is detected that the output power of the vehicle battery of the controlled vehicle is greater than the first preset threshold, it means that after turning off the power supply MOS tube of a vehicle electrical appliance, the output power of the vehicle battery is still greater than the first preset threshold, so it is necessary to control the power supply MOS tube of the vehicle electrical appliance with the next priority to be disconnected until the output power of the vehicle battery of the controlled vehicle is less than the second preset threshold. In this way, it can be avoided that too many vehicle electrical appliances are turned off at one time, affecting the user's driving experience.

[0049] In the related art, a power supply MOSFET is provided in the vehicle electrical appliances, but when the power supply MOSFET is not provided in the vehicle electrical appliances, if it is detected that the output power of the vehicle battery is greater than the first preset threshold, the first type of vehicle electrical appliances can be powered off. The first type of vehicle electrical appliances includes vehicle electrical appliances that are not provided with a power supply MOSFET.

[0050] S103: If it is detected that the output power of the vehicle-mounted battery of the controlled vehicle is less than a second preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be turned off.

[0051] In some embodiments, after controlling the power supply MOS tube of the target vehicle electrical appliance to be turned off, the method further includes: in response to a user instruction, controlling at least one vehicle electrical appliance among a plurality of vehicle electrical appliances included in the target vehicle electrical appliance to be powered on.

[0052] Specifically, after the power supply MOSFET that controls the target vehicle electrical appliance is turned off, the multiple vehicle electrical appliances included in the target vehicle electrical appliance are in an off state, and the user needs to power on again to turn on the vehicle electrical appliance. Therefore, in order not to reduce the user experience, the target vehicle electrical appliance will not be turned on after the power supply MOSFET that controls the target vehicle electrical appliance is turned off. For example, after the power supply MOSFET that controls the vehicle air conditioner is turned off, whether the air conditioner needs to be turned on requires the user to manually power on. The user touches the switch of the vehicle air conditioner, and after responding to the user's instructions, the vehicle air conditioner is powered on.

[0053] In some embodiments, after controlling the power supply MOSFET of the target vehicle electrical appliance to be turned off, the method further includes: controlling the target vehicle electrical appliance to be powered on after a second preset time period.

[0054] In some embodiments, the second preset time period may be ten seconds or one minute, which may be set according to actual conditions.

[0055] In other embodiments, after turning off the power supply MOS tube of the target vehicle appliance, a countdown time is set, that is, the second person can preset a time period of ten seconds. After ten seconds, the target vehicle appliance can be directly controlled to power on, so that the target vehicle appliance can be restarted, thereby ensuring the user experience.

[0056] The technical solution provided by the present disclosure monitors the output power of the vehicle battery; if the output power is greater than a first preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be disconnected, and the target vehicle electrical appliance is an electrical appliance installed in the vehicle and has nothing to do with the vehicle's driving function; if it is detected that the output power of the vehicle battery after the control is less than a second preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be turned off. The technical solution provided by each embodiment of the present disclosure can be used to monitor the output power of the vehicle battery. If the output power is greater than the first preset threshold, that is, the vehicle battery has an over-limit problem, the electrical appliances in the vehicle that are not related to the vehicle's driving function are controlled to disconnect their power supply MOSFETs, thereby reducing the use of vehicle electrical appliances and solving the over-limit problem of the vehicle battery. After the output power is less than the second preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be turned off, thereby improving the performance of the vehicle battery and greatly improving the safety performance of the vehicle.

[0057] Figure 2 A schematic structural diagram of a vehicle-mounted battery protection device provided by an exemplary embodiment of the present disclosure;

[0058] The device includes: a monitoring unit 201, a disconnection unit 202, and a closing unit 203;

[0059] A monitoring unit 201 is used to monitor the output power of the vehicle battery;

[0060] A disconnection unit 202, configured to control the power supply MOSFET of a target vehicle-mounted electrical appliance to be disconnected if the output power is greater than a first preset threshold value, wherein the target vehicle-mounted electrical appliance is an electrical appliance arranged in the vehicle and has nothing to do with the vehicle driving function;

[0061] The shut-down unit 203 is used to control the power supply MOSFET of the target vehicle-mounted electrical appliance to shut down if it is detected that the output power of the vehicle-mounted battery of the controlled vehicle is less than a second preset threshold.

[0062] In some embodiments, the device is used to control the power supply MOS tube of the target vehicle electrical appliance to disconnect if the output power is greater than a first preset threshold, specifically for:

[0063] If the output power is greater than the first preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be disconnected after a first preset time period.

[0064] In some embodiments, the device is also used to: if it is detected that the output power is greater than the first preset threshold, an icon for reminding the user that the vehicle battery is out of limit is displayed on the desktop of the vehicle terminal.

[0065] In some embodiments, the device is further used to: sort the multiple vehicle-mounted electrical appliances included in the target vehicle-mounted electrical appliance according to priority;

[0066] The device is used to control the power supply MOS tube of the target vehicle-mounted electrical appliance to disconnect if the output power is greater than a first preset threshold, and is specifically used to:

[0067] If the output power is greater than the first preset threshold, the power supply MOSFET of the vehicle-mounted electrical appliance with the highest priority is controlled to be disconnected.

[0068] In some embodiments, the device is further used to:

[0069] If the output power of the vehicle's onboard battery after detection and control is greater than the first preset threshold, the power supply MOSFET of the next priority vehicle electrical appliance is disconnected until the output power of the vehicle's onboard battery after control is less than the second preset threshold.

[0070] In some embodiments, the device is used to control the power supply MOS tube of the target vehicle-mounted electrical appliance to be turned off, and is specifically used to:

[0071] In response to a user instruction, at least one of the plurality of on-board electrical appliances included in the target on-board electrical appliance is controlled to be powered on.

[0072] In some embodiments, the device is used to control the target vehicle electrical appliance to power on the power supply MOS tube after it is turned off, and is specifically used to control the target vehicle electrical appliance to power on after a second preset time period.

[0073] The technical solution provided by the present disclosure monitors the output power of the vehicle battery; if the output power is greater than a first preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be disconnected, and the target vehicle electrical appliance is an electrical appliance installed in the vehicle and has nothing to do with the vehicle's driving function; if it is detected that the output power of the vehicle battery after the control is less than a second preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be turned off. The technical solution provided by each embodiment of the present disclosure can be used to monitor the output power of the vehicle battery. If the output power is greater than the first preset threshold, that is, the vehicle battery has an over-limit problem, the electrical appliances in the vehicle that are not related to the vehicle's driving function are controlled to disconnect their power supply MOSFETs, thereby reducing the use of vehicle electrical appliances and solving the over-limit problem of the vehicle battery. After the output power is less than the second preset threshold, the power supply MOSFET of the target vehicle electrical appliance is controlled to be turned off, thereby improving the performance of the vehicle battery and greatly improving the safety performance of the vehicle.

[0074] Figure 3 is a schematic block diagram of an electronic device provided by an embodiment of the present disclosure, and the electronic device may include:

[0075] The memory 301 and the processor 302, the memory 301 is used to store the computer program and transmit the program code to the processor 302. In other words, the processor 302 can call and run the computer program from the memory 301 to implement the method in the embodiment of the present disclosure.

[0076] For example, the processor 302 may be configured to execute the above method embodiments according to instructions in the computer program.

[0077] In some embodiments of the present disclosure, the processor 302 may include but is not limited to:

[0078] General-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc.

[0079] In some embodiments of the present disclosure, the memory 301 includes but is not limited to:

[0080] Volatile memory and / or non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM) or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus random access memory (DR RAM).

[0081] In some embodiments of the present disclosure, the computer program may be divided into one or more modules, which are stored in the memory 301 and executed by the processor 302 to complete the method provided by the present disclosure. The one or more modules may be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program in the electronic device.

[0082] like Figure 3 As shown, the electronic device may also include:

[0083] The transceiver 303 may be connected to the processor 302 or the memory 301 .

[0084] The processor 302 may control the transceiver 303 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices. The transceiver 303 may include a transmitter and a receiver. The transceiver 303 may further include an antenna, and the number of antennas may be one or more.

[0085] It should be understood that the various components in the electronic device are connected via a bus system, wherein the bus system includes not only a data bus but also a power bus, a control bus and a status signal bus.

[0086] The present disclosure also provides a computer storage medium on which a computer program is stored, and when the computer program is executed by a computer, the computer can perform the method of the above method embodiment. In other words, the present disclosure embodiment also provides a computer program product containing instructions, and when the instructions are executed by a computer, the computer can perform the method of the above method embodiment.

[0087] When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a solid state disk (solid state disk, SSD)), etc.

[0088] Those of ordinary skill in the art will appreciate that the modules and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0089] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the module is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0090] The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. For example, each functional module in each embodiment of the present disclosure may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

[0091] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A vehicle battery protection method, characterized in that: The method comprises: Monitor the output power of the vehicle battery; If the output power is greater than a first preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be disconnected, and the target vehicle-mounted electrical appliance is an electrical appliance installed in the vehicle and has nothing to do with the vehicle's driving function; If it is detected that the output power of the vehicle-mounted battery of the controlled vehicle is less than the second preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be turned off.

2. The method according to claim 1, characterized in that If the output power is greater than the first preset threshold, the power supply MOS tube of the target vehicle-mounted electrical appliance is controlled to be disconnected, including: If the output power is greater than the first preset threshold, the power supply MOSFET of the target vehicle-mounted electrical appliance is controlled to be disconnected after a first preset time period.

3. The method according to claim 1, characterized in that: The method further includes: if it is detected that the output power is greater than the first preset threshold, an icon for reminding the user that the vehicle battery is out of limit is displayed on the desktop of the vehicle terminal.

4. The method according to claim 1, characterized in that: The method further includes: sorting the plurality of vehicle-mounted electrical appliances included in the target vehicle-mounted electrical appliance according to priority; If the output power is greater than the first preset threshold, the power supply MOS tube of the target vehicle-mounted electrical appliance is controlled to be disconnected, including: If the output power is greater than the first preset threshold, the power supply MOSFET of the vehicle-mounted electrical appliance with the highest priority is controlled to be disconnected.

5. The method according to claim 4, characterized in that The method further comprises: If it is detected that the output power of the vehicle's onboard battery after control is greater than the first preset threshold, the power supply MOSFET of the next priority vehicle electrical appliance is disconnected until the output power of the vehicle's onboard battery after control is less than the second preset threshold.

6. The method according to claim 1, characterized in that After the power supply MOS tube of the target vehicle-mounted electrical appliance is controlled to be turned off, the method further includes: In response to a user instruction, at least one of the plurality of on-board electrical appliances included in the target on-board electrical appliance is controlled to be powered on.

7. The method according to claim 1, characterized in that After controlling the power supply MOS tube of the target vehicle electrical appliance to be turned off, the method further includes: controlling the target vehicle electrical appliance to be powered on after a second preset time period.

8. A vehicle-mounted battery protection device, characterized in that: include: A monitoring unit, used to monitor the output power of the vehicle battery; a disconnection unit, configured to control the power supply MOSFET of a target vehicle-mounted electrical appliance to disconnect if the output power is greater than a first preset threshold value, wherein the target vehicle-mounted electrical appliance is an electrical appliance arranged in the vehicle and has nothing to do with the vehicle driving function; The shut-down unit is used to control the power supply MOSFET of the target vehicle-mounted electrical appliance to shut down if it is detected that the output power of the vehicle-mounted battery of the controlled vehicle is less than a second preset threshold.

9. An electronic device, characterized in that: include: processor; as well as A memory, configured to store executable instructions of the processor; The processor is configured to perform the method of any one of claims 1 to 8 by executing the executable instructions.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

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