Methods, devices, systems, servers, and media for monitoring vehicle low-voltage batteries

Abstract

The present invention relates to the field of vehicle battery monitoring technology, and specifically provides a monitoring method, device, system, server and medium for a vehicle low-voltage battery, aiming to solve the technical problem that the capacity of the existing vehicle low-voltage battery decreases too much, resulting in vehicle startup failure. To this end, according to step S101 of an embodiment of the present invention: in response to a received battery abnormality analysis request, obtain the power-related parameters of the vehicle low-voltage battery in the battery abnormality analysis request; step S102: based on the comparison result of the power-related parameters with a preset power parameter threshold, determine whether the vehicle low-voltage battery is a battery with abnormal capacity; wherein the battery abnormality analysis request is a request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold. Through the above steps, the vehicle low-voltage battery with abnormal capacity can be identified in advance, so that the user can take timely measures.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle battery monitoring, and in particular to a monitoring method, device, system, server and medium for a vehicle low-voltage battery. Background Art

[0002] With the development of economy and the progress of society, people's living standards are constantly improving, and cars are gradually becoming an indispensable means of travel for people. Compared with traditional fuel vehicles, new energy vehicles are becoming more and more popular because of their advantages such as saving oil and other energy and reducing pollution.

[0003] The electrical system of new energy vehicles mainly includes high-voltage electrical systems and low-voltage electrical systems. The high-voltage electrical system mainly includes power batteries that provide power sources for new energy vehicles, and the low-voltage electrical system mainly includes low-voltage batteries (such as 12V lead-acid batteries) that provide power to related vehicle equipment when new energy vehicles are started. When new energy vehicles are started, the vehicle's low-voltage battery often needs to simultaneously supply power to different devices that perform functions such as vehicle control, power battery monitoring, and vehicle software upgrades, resulting in a large amount of power consumption by the vehicle's low-voltage battery. However, compared to traditional fuel vehicles, the static dormant current of the vehicle's low-voltage battery in new energy vehicles is relatively large. When the vehicle is stationary for a long time (all devices in the vehicle are in a dormant state), it is easy to cause the capacity of the vehicle's low-voltage battery to drop too much, so that it cannot provide the necessary power to the vehicle when starting the vehicle, resulting in vehicle start failure. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention is proposed to provide a vehicle low-voltage battery monitoring method, device, system, server and medium that solves or at least partially solves the technical problem that the capacity of the existing vehicle low-voltage battery decreases too much and cannot provide the necessary electrical energy for the vehicle when starting the vehicle, resulting in vehicle starting failure.

[0005] In a first aspect, a monitoring method for a vehicle low-voltage battery is provided, the monitoring method comprising:

[0006] In response to the received battery abnormality analysis request, obtaining power-related parameters of the vehicle low-voltage battery in the battery abnormality analysis request;

[0007] According to the comparison result of the electric energy related parameter and the preset electric energy parameter threshold, determining whether the vehicle low-voltage battery is a battery with abnormal capacity;

[0008] The battery abnormality analysis request is request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0009] In a technical solution of the above monitoring method, before the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result of the power-related parameter and the preset power parameter threshold", the monitoring method further includes:

[0010] Obtaining a battery temperature of a low-voltage battery of the vehicle in the battery abnormality analysis request;

[0011] Based on a preset correspondence between the battery temperature and the electric energy parameter threshold, the corresponding electric energy parameter threshold is matched according to the battery temperature.

[0012] In a technical solution of the above monitoring method, the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result of the power-related parameter and the preset power parameter threshold" specifically includes:

[0013] The electric energy related parameters include the battery voltage and state of charge of the vehicle's low-voltage battery, and the electric energy parameter thresholds include the battery voltage threshold and the state of charge threshold;

[0014] If the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, it is determined that the vehicle low-voltage battery is a battery with abnormal capacity.

[0015] In one technical solution of the above-mentioned monitoring method, the power-related parameters in the battery abnormality analysis request are the power-related parameters detected by the vehicle equipment at the instant when the vehicle starts charging the vehicle's low-voltage battery after the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0016] In a technical solution of the above monitoring method, after the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result of the power-related parameter and the preset power parameter threshold value", the monitoring method further includes:

[0017] If it is determined that the vehicle low-voltage battery is a battery with abnormal capacity, the vehicle identification information in the battery abnormality analysis request is obtained, and an alarm message is sent to the vehicle service terminal and / or the vehicle user terminal according to the vehicle identification information.

[0018] In a technical solution of the above monitoring method, the monitoring method further includes:

[0019] Obtain historical status data of the power battery in the vehicle;

[0020] Adjusting the charging strategy of charging the vehicle low-voltage battery using the power battery according to the historical status data specifically includes:

[0021] Adjusting the charging voltage, charging start state of charge and charging end state of charge of the vehicle low-voltage battery according to the historical state data;

[0022] Among them, the historical status data includes the life and mileage of the power battery when the vehicle low-voltage battery is charged by the power battery, and the charging time and temperature of the vehicle low-voltage battery.

[0023] In a second aspect, another method for monitoring a low-voltage battery of a vehicle is provided, the monitoring method comprising:

[0024] When the vehicle is stationary, detecting whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold;

[0025] If so, a battery abnormality analysis request is generated based on the power-related parameters of the vehicle's low-voltage battery and the battery abnormality analysis request is sent to the background server, so that the background server can determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold.

[0026] In a technical solution of the above monitoring method, the step of "generating a battery abnormality analysis request according to the power-related parameters of the vehicle low-voltage battery" specifically includes:

[0027] Obtaining battery temperature and power-related parameters of the vehicle's low-voltage battery and vehicle identification information of the current vehicle;

[0028] A battery abnormality analysis request is generated according to the battery temperature, the electric energy-related parameters and the vehicle identification information, so that the background server can judge whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the correspondence between the preset battery temperature and the electric energy parameter threshold and matching the corresponding electric energy parameter threshold according to the battery temperature, and according to the comparison result between the electric energy-related parameters and the electric energy parameter threshold.

[0029] In a technical solution of the above monitoring method, after the step of "sending the battery abnormality analysis request to the background server", the monitoring method further includes:

[0030] Receiving the warning information sent by the backend server;

[0031] The warning information is information sent by the background server after determining that the vehicle low-voltage battery is a battery with abnormal capacity.

[0032] In one technical solution of the above-mentioned monitoring method, the power-related parameters include the battery voltage and charge state of the vehicle's low-voltage battery; wherein, the power-related parameters are the power-related parameters detected at the instant when charging of the vehicle's low-voltage battery is started after the vehicle is stationary and it is detected that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0033] In a third aspect, a backend server is provided, the backend server comprising:

[0034] A battery abnormality analysis request receiving module, configured to obtain, in response to a received battery abnormality analysis request, power-related parameters of a vehicle low-voltage battery in the battery abnormality analysis request;

[0035] a battery abnormality analysis request processing module, configured to determine whether the vehicle low-voltage battery is a battery with abnormal capacity according to a comparison result of the power-related parameter and a preset power parameter threshold;

[0036] The battery abnormality analysis request is request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0037] In a technical solution of the above-mentioned background server, before the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result of the power-related parameter and the preset power parameter threshold", the battery abnormality analysis request processing module is further configured to perform the following operations including:

[0038] Obtaining a battery temperature of a low-voltage battery of the vehicle in the battery abnormality analysis request;

[0039] Based on a preset correspondence between the battery temperature and the electric energy parameter threshold, the corresponding electric energy parameter threshold is matched according to the battery temperature.

[0040] In a technical solution of the above-mentioned background server, the battery abnormality analysis request processing module is further configured to perform the following operations:

[0041] The electric energy related parameters include the battery voltage and state of charge of the vehicle's low-voltage battery, and the electric energy parameter thresholds include the battery voltage threshold and the state of charge threshold;

[0042] If the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, it is determined that the vehicle low-voltage battery is a battery with abnormal capacity.

[0043] In a technical solution of the above-mentioned background server, the power-related parameters in the battery abnormality analysis request are the power-related parameters detected by the vehicle equipment at the instant when the vehicle starts charging the vehicle's low-voltage battery after the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0044] In a technical solution of the above-mentioned background server, after the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result of the power-related parameter and the preset power parameter threshold", the battery abnormality analysis request processing module is further configured to perform the following operations including:

[0045] If it is determined that the vehicle low-voltage battery is a battery with abnormal capacity, the vehicle identification information in the battery abnormality analysis request is obtained, and an alarm message is sent to the vehicle service terminal and / or the vehicle user terminal according to the vehicle identification information.

[0046] In a technical solution of the above-mentioned background server, the background server further includes a vehicle low-voltage battery charging strategy adjustment module, and the vehicle low-voltage battery charging strategy adjustment module is configured to perform the following operations:

[0047] Obtain historical status data of the power battery in the vehicle;

[0048] Adjusting the charging strategy of charging the vehicle low-voltage battery using the power battery according to the historical status data specifically includes:

[0049] Adjusting the charging voltage, charging start state of charge and charging end state of charge of the vehicle low-voltage battery according to the historical state data;

[0050] Among them, the historical status data includes the life and mileage of the power battery when the vehicle low-voltage battery is charged by the power battery, and the charging time and temperature of the vehicle low-voltage battery.

[0051] In a fourth aspect, a monitoring device for a vehicle low-voltage battery is provided, the monitoring device comprising:

[0052] A battery voltage detection module, which is configured to detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary;

[0053] A battery abnormality analysis request module is configured to generate a battery abnormality analysis request based on the power-related parameters of the vehicle low-voltage battery when the battery voltage detection module detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold and send the battery abnormality analysis request to a background server, so that the background server can determine whether the vehicle low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold.

[0054] In a technical solution of the above monitoring device, the battery abnormality analysis request module is further configured to perform the following operations:

[0055] Obtaining battery temperature and power-related parameters of the vehicle's low-voltage battery and vehicle identification information of the current vehicle;

[0056] A battery abnormality analysis request is generated according to the battery temperature, the electric energy-related parameters and the vehicle identification information, so that the background server can judge whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the correspondence between the preset battery temperature and the electric energy parameter threshold and matching the corresponding electric energy parameter threshold according to the battery temperature, and according to the comparison result between the electric energy-related parameters and the electric energy parameter threshold.

[0057] In a technical solution of the above-mentioned monitoring device, after the step of "sending the battery abnormality analysis request to the background server", the battery abnormality analysis request module is further configured to perform the following operations:

[0058] Receiving the warning information sent by the backend server;

[0059] The warning information is information sent by the background server after determining that the vehicle low-voltage battery is a battery with abnormal capacity.

[0060] In one technical solution of the above-mentioned monitoring device, the power-related parameters include the battery voltage and charge state of the vehicle's low-voltage battery; wherein, the power-related parameters are the power-related parameters detected at the instant when charging of the vehicle's low-voltage battery is started after the vehicle is stationary and it is detected that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0061] In a technical solution of the above-mentioned monitoring device, the battery voltage detection module includes a vehicle body controller, and the battery abnormality analysis request module includes a vehicle controller.

[0062] In a fifth aspect, a monitoring system for a vehicle low-voltage battery is provided, the monitoring system comprising a background server as described in any of the above technical solutions and a monitoring device for a vehicle low-voltage battery as described in any of the above technical solutions;

[0063] The monitoring device is configured to detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary; if so, generate a battery abnormality analysis request according to the power-related parameters of the vehicle's low-voltage battery and send the battery abnormality analysis request to the background server;

[0064] The background server is configured to obtain power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request, and determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on a comparison result between the power-related parameters and a preset power parameter threshold.

[0065] In a sixth aspect, a control device is provided, which includes a processor and a storage device, wherein the storage device is suitable for storing multiple program codes, and the program codes are suitable for being loaded and run by the processor to execute the vehicle low-voltage battery monitoring method described in any one of the technical solutions in the first aspect above.

[0066] In the seventh aspect, a control device is provided, which includes a processor and a storage device, wherein the storage device is suitable for storing multiple program codes, and the program codes are suitable for being loaded and run by the processor to execute the vehicle low-voltage battery monitoring method described in any technical solution in the second aspect above.

[0067] In an eighth aspect, a computer-readable storage medium is provided, in which a plurality of program codes are stored, wherein the program codes are suitable for being loaded and run by a processor to execute the vehicle low-voltage battery monitoring method described in any one of the technical solutions in the first aspect above.

[0068] In a ninth aspect, a computer-readable storage medium is provided, in which a plurality of program codes are stored, wherein the program codes are suitable for being loaded and run by a processor to execute the vehicle low-voltage battery monitoring method described in any one of the technical solutions in the second aspect above.

[0069] Solution 1: A monitoring method for a vehicle low-voltage battery, characterized in that the monitoring method comprises:

[0070] In response to the received battery abnormality analysis request, obtaining power-related parameters of the vehicle low-voltage battery in the battery abnormality analysis request;

[0071] According to the comparison result of the electric energy related parameter and the preset electric energy parameter threshold, determining whether the vehicle low-voltage battery is a battery with abnormal capacity;

[0072] The battery abnormality analysis request is request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0073] Solution 2: The vehicle low-voltage battery monitoring method according to Solution 1 is characterized in that, before the step of “determining whether the vehicle low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameter and the preset power parameter threshold”, the monitoring method further includes:

[0074] Obtaining a battery temperature of a low-voltage battery of the vehicle in the battery abnormality analysis request;

[0075] Based on a preset correspondence between the battery temperature and the electric energy parameter threshold, the corresponding electric energy parameter threshold is matched according to the battery temperature.

[0076] Solution 3: The vehicle low-voltage battery monitoring method according to Solution 1 is characterized in that the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameter and the preset power parameter threshold" specifically includes:

[0077] The electric energy related parameters include the battery voltage and state of charge of the vehicle's low-voltage battery, and the electric energy parameter thresholds include the battery voltage threshold and the state of charge threshold;

[0078] If the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, it is determined that the vehicle low-voltage battery is a battery with abnormal capacity.

[0079] Solution 4. The vehicle low-voltage battery monitoring method according to Solution 3 is characterized in that the power-related parameters in the battery abnormality analysis request are power-related parameters detected by the vehicle equipment at the instant when the vehicle starts charging the vehicle low-voltage battery after the vehicle is stationary and detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold.

[0080] Solution 5. A method for monitoring a vehicle low-voltage battery according to any one of Solutions 1 to 4, characterized in that after the step of “determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to a comparison result of the power-related parameter with a preset power parameter threshold”, the monitoring method further comprises:

[0081] If it is determined that the vehicle low-voltage battery is a battery with abnormal capacity, the vehicle identification information in the battery abnormality analysis request is obtained, and an alarm message is sent to the vehicle service terminal and / or the vehicle user terminal according to the vehicle identification information.

[0082] Solution 6: The vehicle low-voltage battery monitoring method according to any one of Solutions 1 to 4, characterized in that the monitoring method further comprises:

[0083] Obtain historical status data of the power battery in the vehicle;

[0084] Adjusting the charging strategy of charging the vehicle low-voltage battery using the power battery according to the historical status data specifically includes:

[0085] Adjusting the charging voltage, charging start state of charge and charging end state of charge of the vehicle low-voltage battery according to the historical state data;

[0086] Among them, the historical status data includes the life and mileage of the power battery when the vehicle low-voltage battery is charged by the power battery, and the charging time and temperature of the vehicle low-voltage battery.

[0087] Solution 7: A monitoring method for a vehicle low-voltage battery, characterized in that the monitoring method comprises:

[0088] When the vehicle is stationary, detecting whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold;

[0089] If so, a battery abnormality analysis request is generated based on the power-related parameters of the vehicle's low-voltage battery and the battery abnormality analysis request is sent to the background server, so that the background server can determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold.

[0090] Solution 8: The vehicle low-voltage battery monitoring method according to Solution 7 is characterized in that the step of "generating a battery abnormality analysis request according to the power-related parameters of the vehicle low-voltage battery" specifically includes:

[0091] Obtaining battery temperature and power-related parameters of the vehicle's low-voltage battery and vehicle identification information of the current vehicle;

[0092] A battery abnormality analysis request is generated according to the battery temperature, the electric energy-related parameters and the vehicle identification information, so that the background server can judge whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the correspondence between the preset battery temperature and the electric energy parameter threshold and matching the corresponding electric energy parameter threshold according to the battery temperature, and according to the comparison result between the electric energy-related parameters and the electric energy parameter threshold.

[0093] Solution 9: The vehicle low-voltage battery monitoring method according to Solution 7 is characterized in that after the step of "sending the battery abnormality analysis request to the background server", the monitoring method further includes:

[0094] Receiving the warning information sent by the backend server;

[0095] The warning information is information sent by the background server after determining that the vehicle low-voltage battery is a battery with abnormal capacity.

[0096] Scheme 10, a method for monitoring a vehicle low-voltage battery according to any one of Schemes 7 to 9, characterized in that the power-related parameters include the battery voltage and charge state of the vehicle low-voltage battery; wherein the power-related parameters are power-related parameters detected at the instant when charging of the vehicle low-voltage battery is started after the vehicle is stationary and it is detected that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold.

[0097] Solution 11: A backend server, characterized in that the backend server comprises:

[0098] A battery abnormality analysis request receiving module, configured to obtain, in response to a received battery abnormality analysis request, power-related parameters of a vehicle low-voltage battery in the battery abnormality analysis request;

[0099] a battery abnormality analysis request processing module, configured to determine whether the vehicle low-voltage battery is a battery with abnormal capacity according to a comparison result of the power-related parameter and a preset power parameter threshold;

[0100] The battery abnormality analysis request is request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0101] Solution 12: The backend server according to Solution 11 is characterized in that the battery abnormality analysis request processing module is further configured to perform the following operations:

[0102] Obtaining a battery temperature of a low-voltage battery of the vehicle in the battery abnormality analysis request;

[0103] Based on a preset correspondence between the battery temperature and the electric energy parameter threshold, the corresponding electric energy parameter threshold is matched according to the battery temperature.

[0104] Solution 13: The backend server according to Solution 11 is characterized in that the battery abnormality analysis request processing module is further configured to perform the following operations:

[0105] The electric energy related parameters include the battery voltage and state of charge of the vehicle's low-voltage battery, and the electric energy parameter thresholds include the battery voltage threshold and the state of charge threshold;

[0106] If the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, it is determined that the vehicle low-voltage battery is a battery with abnormal capacity.

[0107] Solution 14, according to the background server of Solution 13, is characterized in that the power-related parameters in the battery abnormality analysis request are the power-related parameters detected by the vehicle equipment at the instant when the vehicle starts charging the vehicle low-voltage battery after the vehicle is stationary and detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold.

[0108] Solution 15: The backend server according to any one of solutions 11 to 14, characterized in that the battery abnormality analysis request processing module is further configured to perform the following operations:

[0109] If it is determined that the vehicle low-voltage battery is a battery with abnormal capacity, the vehicle identification information in the battery abnormality analysis request is obtained, and an alarm message is sent to the vehicle service terminal and / or the vehicle user terminal according to the vehicle identification information.

[0110] Solution 16: A backend server according to any one of Solutions 11 to 14, characterized in that the backend server further comprises a vehicle low-voltage battery charging strategy adjustment module, and the vehicle low-voltage battery charging strategy adjustment module is configured to perform the following operations:

[0111] Obtain historical status data of the power battery in the vehicle;

[0112] Adjusting the charging strategy of charging the vehicle low-voltage battery using the power battery according to the historical status data specifically includes:

[0113] Adjusting the charging voltage, charging start state of charge and charging end state of charge of the vehicle low-voltage battery according to the historical state data;

[0114] Among them, the historical status data includes the life and mileage of the power battery when the vehicle low-voltage battery is charged by the power battery, and the charging time and temperature of the vehicle low-voltage battery.

[0115] Solution 17: A monitoring device for a vehicle low-voltage battery, characterized in that the monitoring device comprises:

[0116] A battery voltage detection module, which is configured to detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary;

[0117] A battery abnormality analysis request module is configured to generate a battery abnormality analysis request based on the power-related parameters of the vehicle low-voltage battery when the battery voltage detection module detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold and send the battery abnormality analysis request to a background server, so that the background server can determine whether the vehicle low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold.

[0118] Solution 18. The monitoring device according to Solution 17 is characterized in that the battery abnormality analysis request module is further configured to perform the following operations:

[0119] Obtaining battery temperature and power-related parameters of the vehicle's low-voltage battery and vehicle identification information of the current vehicle;

[0120] A battery abnormality analysis request is generated according to the battery temperature, the electric energy-related parameters and the vehicle identification information, so that the background server can judge whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the correspondence between the preset battery temperature and the electric energy parameter threshold and matching the corresponding electric energy parameter threshold according to the battery temperature, and according to the comparison result between the electric energy-related parameters and the electric energy parameter threshold.

[0121] Solution 19: The monitoring device according to Solution 17 is characterized in that after the step of “sending the battery abnormality analysis request to the background server”, the battery abnormality analysis request module is further configured to perform the following operations:

[0122] Receiving the warning information sent by the backend server;

[0123] The warning information is information sent by the background server after determining that the vehicle low-voltage battery is a battery with abnormal capacity.

[0124] Scheme 20, a monitoring device according to any one of Schemes 17 to 19, characterized in that the power-related parameters include the battery voltage and charge state of the vehicle's low-voltage battery; wherein the power-related parameters are power-related parameters detected at the instant when charging of the vehicle's low-voltage battery is started after the vehicle is stationary and it is detected that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0125] Solution 21. The monitoring device according to Solution 20 is characterized in that the battery voltage detection module includes a body controller, and the battery abnormality analysis request module includes a vehicle controller.

[0126] Solution 22: A vehicle low-voltage battery monitoring system, characterized in that the monitoring system comprises a backend server according to any one of Solutions 11 to 16 and a vehicle low-voltage battery monitoring device according to any one of Solutions 17 to 21;

[0127] The monitoring device is configured to detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary; if so, generate a battery abnormality analysis request according to the power-related parameters of the vehicle's low-voltage battery and send the battery abnormality analysis request to the background server;

[0128] The background server is configured to obtain power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request, and determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on a comparison result between the power-related parameters and a preset power parameter threshold.

[0129] Scheme 23. A control device comprising a processor and a storage device, wherein the storage device is suitable for storing multiple program codes, and is characterized in that the program codes are suitable for being loaded and run by the processor to execute the vehicle low-voltage battery monitoring method described in any one of Schemes 1 to 6.

[0130] Scheme 24, a control device, comprising a processor and a storage device, wherein the storage device is suitable for storing multiple program codes, and is characterized in that the program codes are suitable for being loaded and run by the processor to execute the vehicle low-voltage battery monitoring method described in any one of Schemes 7 to 10.

[0131] Solution 25. A computer-readable storage medium storing a plurality of program codes, characterized in that the program codes are suitable for being loaded and run by a processor to execute the vehicle low-voltage battery monitoring method described in any one of Solutions 1 to 6.

[0132] Solution 26. A computer-readable storage medium storing a plurality of program codes, wherein the program codes are suitable for being loaded and run by a processor to execute the vehicle low-voltage battery monitoring method described in any one of Solutions 7 to 10.

[0133] The above one or more technical solutions of the present invention have at least one or more of the following beneficial effects:

[0134] In the technical solution for implementing the present invention, the vehicle equipment can output a battery abnormality analysis request when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold. By obtaining the power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request (including but not limited to: battery voltage and state of charge, etc.), it can be determined whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold. Specifically, if the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle's low-voltage battery is determined to be a battery with abnormal capacity. Through such a setting, a vehicle's low-voltage battery with abnormal capacity can be identified in advance, which facilitates users to take timely measures to avoid the vehicle from failing to start normally due to abnormal capacity of the vehicle's low-voltage battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0135] The specific embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0136] Figure 1 1 is a flow chart showing the main steps of a method for monitoring a vehicle low-voltage battery according to a first embodiment of the present invention;

[0137] Figure 2 1 is a flow chart of main steps of a method for monitoring a vehicle low-voltage battery according to a second embodiment of the present invention;

[0138] Figure 3 is a main structural block diagram of a background server according to Embodiment 1 of the present invention;

[0139] Figure 4 1 is a main structural block diagram of a vehicle low-voltage battery monitoring device according to a second embodiment of the present invention.

[0140] List of reference numerals:

[0141] 11: Battery abnormality analysis request receiving module; 12: Battery abnormality analysis request processing module; 13: Vehicle low-voltage battery charging strategy adjustment module; 21: Battery voltage detection module; 22: Battery abnormality analysis request module. DETAILED DESCRIPTION

[0142] Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0143] In the description of the present invention, "module" and "processor" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, and memories, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware, or a combination of the two. Non-temporary computer-readable storage media include any suitable medium that can store program codes, such as a magnetic disk, a hard disk, an optical disk, a flash memory, a read-only memory, a random access memory, and the like. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The term "at least one A or B" or "at least one of A and B" has a similar meaning to "A and / or B", and may include only A, only B, or A and B. The singular terms "one" and "the" may also include plural forms.

[0144] Here we first explain some terms involved in the present invention.

[0145] Vehicle stationary means that the vehicle remains stationary at a fixed position for a certain period of time, and the vehicle's equipment is in a dormant state, including but not limited to: the vehicle is parked and the engine is turned off, the vehicle enters a dormant state or a deep dormant state, etc.

[0146] At present, the electrical system of traditional new energy vehicles mainly includes high-voltage electrical system and low-voltage electrical system. The high-voltage electrical system mainly includes power batteries that provide power sources for new energy vehicles, and the low-voltage electrical system mainly includes low-voltage batteries (such as 12V lead-acid batteries) that provide power to related vehicle equipment when the new energy vehicle is started. When the new energy vehicle is started, the vehicle low-voltage battery often needs to supply power to different devices that perform functions such as vehicle control, power battery monitoring, and vehicle software upgrades at the same time, resulting in a large amount of power consumption by the vehicle low-voltage battery. However, compared with traditional fuel vehicles, the static dormant current of the vehicle low-voltage battery in new energy vehicles is relatively large. When the vehicle is stationary for a long time (all devices in the vehicle are in dormant state), it is easy to cause the capacity of the vehicle low-voltage battery to drop too much so that it cannot provide the necessary power to the vehicle when starting the vehicle, resulting in vehicle start failure.

[0147] In an embodiment of the present invention, a battery abnormality analysis request output by a vehicle device can be first obtained. The request is output by the vehicle device when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold. Then, the power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request are obtained. Finally, based on the comparison result of the power-related parameters with the preset power parameter threshold, it is determined whether the vehicle's low-voltage battery is a battery with abnormal capacity. Through the above steps, a vehicle low-voltage battery with abnormal capacity can be identified in advance, which is convenient for users to take timely measures, thereby overcoming the defect that the vehicle cannot start normally due to abnormal capacity of the vehicle's low-voltage battery.

[0148] In an application scenario of the present invention, when a vehicle is placed in a garage and is in an off state, the body control module (BCM) will detect the battery voltage of the vehicle's low-voltage battery in real time. When it is detected that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold, the body control module will immediately wake up the vehicle control unit (VCU). After being woken up, the vehicle control unit will communicate with the battery management system (Intelligent battery sensor, IBS) of the vehicle's low-voltage battery to obtain the battery voltage and state of charge and other power-related parameters of the vehicle's low-voltage battery collected by the battery management system. Subsequently, the vehicle control unit will generate a battery abnormality analysis request based on the power-related parameters of the vehicle's low-voltage battery and transmit the battery abnormality analysis request to the background server. After receiving the battery abnormality analysis request, the backend server obtains the battery temperature, battery voltage and state of charge of the vehicle's low-voltage battery in the battery abnormality analysis request, and then matches the corresponding battery voltage threshold and state of charge threshold based on the preset correspondence between the battery temperature and the electric energy parameter threshold (including the battery voltage threshold and the state of charge threshold) and the detected battery temperature. Finally, the electric energy-related parameters in the battery abnormality analysis request are compared with the above-obtained electric energy parameter threshold, and it is determined whether the vehicle's low-voltage battery is abnormal based on the comparison result. If the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle's low-voltage battery is determined to be a battery with abnormal capacity, and an alarm message is sent to the vehicle display screen and the user's mobile phone based on the vehicle identification information in the battery abnormality analysis request, so that the user can replace the vehicle's low-voltage battery in time, and it is also convenient for the manufacturer to adjust the charging strategy of charging the vehicle's low-voltage battery using the power battery based on the historical status data of the power battery in the vehicle, thereby extending the service life of the vehicle's low-voltage battery.

[0149] The technical solution of the present invention is further described below in conjunction with different embodiments.

[0150] Embodiment 1

[0151] See attached Figure 1, Figure 1 FIG. 1 is a flow chart showing the main steps of a method for monitoring a vehicle low-voltage battery according to an embodiment of the present invention. Figure 1 As shown, the monitoring method in the embodiment of the present invention mainly includes the following steps:

[0152] Step S101: In response to a received battery abnormality analysis request, obtain power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request, wherein the battery abnormality analysis request is a request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

[0153] In this embodiment, the meaning of the vehicle being stationary is the same as the meaning of the vehicle being stationary in the aforementioned term explanation, and for the sake of brevity, it is not repeated here. The preset voltage threshold can be flexibly set by those skilled in the art according to actual needs.

[0154] Step S102: judging whether the vehicle low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameter and the preset power parameter threshold.

[0155] In this embodiment, the power-related parameters include but are not limited to: battery voltage, state of charge (SOC) and other parameters of the vehicle's low-voltage battery. The preset power parameter thresholds can be flexibly set by those skilled in the art according to actual needs.

[0156] Through the above steps S101 to S102, when the vehicle is stationary and the battery voltage of the vehicle's low-voltage battery is detected to be less than or equal to a preset voltage threshold, the embodiment of the present invention will determine that the vehicle's low-voltage battery may have a capacity abnormality, and will immediately obtain the battery voltage and charge state and other power-related parameters of the vehicle's low-voltage battery, and output a battery abnormality analysis request based on these power-related parameters. After receiving the battery abnormality analysis request, the backend server and other devices will determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request with the preset power parameter threshold, and selectively output alarm information based on the judgment result, so that the vehicle's low-voltage battery with abnormal capacity can be identified in advance, which is convenient for users to take timely measures, and overcomes the defect that the vehicle cannot start normally due to abnormal capacity of the vehicle's low-voltage battery.

[0157] The above step S102 is further explained below.

[0158] In an optional implementation of step S102 of the embodiment of the present invention, before the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters and the preset power parameter threshold value" (step S102), the above-mentioned monitoring method also includes: obtaining the battery temperature of the vehicle low-voltage battery in the battery abnormality analysis request; matching the corresponding power parameter threshold value based on the preset correspondence between the battery temperature and the power parameter threshold value and according to the battery temperature. In this embodiment, the battery temperatures of different vehicle low-voltage batteries correspond to different power parameter threshold values, and the power parameter threshold value under the condition of normal battery capacity corresponding to the battery temperature of the vehicle low-voltage battery in the battery abnormality analysis request can be obtained through the correspondence between the preset battery temperature and the power parameter threshold value. The correspondence between the preset battery temperature and the power parameter threshold value can be flexibly set by those skilled in the art according to actual needs. For example, when the battery temperature of the vehicle low-voltage battery is 25°C, the corresponding battery voltage is 12.5V, and the state of charge SOC=0.9.

[0159] In one embodiment, the step of "determining whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison results of the power-related parameters with the preset power parameter thresholds" (step S102) specifically includes: the power-related parameters include the battery voltage and state of charge of the vehicle's low-voltage battery, and the power parameter thresholds include the battery voltage threshold and the state of charge threshold; if the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle's low-voltage battery is determined to be a battery with abnormal capacity. In this embodiment, the battery voltage threshold and the state of charge threshold are used to identify vehicle low-voltage batteries with abnormal battery capacity, so that users can replace the vehicle's low-voltage battery in a timely manner to avoid the vehicle from failing to start normally due to abnormal capacity of the vehicle's low-voltage battery. Those skilled in the art can flexibly set the battery voltage threshold and the state of charge threshold according to actual needs.

[0160] Further, the power-related parameters in the battery abnormality analysis request are power-related parameters detected by the vehicle equipment such as the body controller at the instant when the vehicle starts charging the vehicle low-voltage battery after the vehicle is stationary and the battery voltage of the vehicle low-voltage battery is detected to be less than or equal to the preset voltage threshold. In this embodiment, if the vehicle is stationary and the battery voltage of the vehicle low-voltage battery is detected to be less than or equal to the preset voltage threshold, it means that the battery voltage of the vehicle low-voltage battery is insufficient to start the vehicle, and the vehicle low-voltage battery needs to be charged. At the moment of charging, the battery voltage of the vehicle low-voltage battery will drop temporarily due to excessive battery load. At this time, the power-related parameters (battery voltage and state of charge) are the lowest values ​​of the vehicle low-voltage battery. If the battery voltage at this time is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle low-voltage battery may not be sufficient to start the vehicle, thereby identifying the vehicle low-voltage battery with abnormal capacity in advance, so that the user can replace the vehicle low-voltage battery in time to avoid the vehicle from failing to start normally due to abnormal capacity of the vehicle low-voltage battery.

[0161] In one embodiment, after the step of "determining whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison results of the power-related parameters with the preset power parameter thresholds" (step S102), the above-mentioned monitoring method also includes: if it is determined that the vehicle's low-voltage battery is a battery with abnormal capacity, then obtaining the vehicle identification information in the battery abnormality analysis request, and sending an alarm message to the vehicle service terminal and / or the vehicle user terminal based on the vehicle identification information. In this embodiment, if the vehicle has been started, the alarm message can be sent to the vehicle's display screen and / or the user's mobile phone. If the vehicle has not been started, the alarm message can be sent to the user's mobile phone and / or the alarm message can be sent to the vehicle's display screen after the vehicle is started next time, so that the user can replace the vehicle's low-voltage battery in time to avoid the vehicle from failing to start normally due to abnormal capacity of the vehicle's low-voltage battery. The vehicle identification information can be information that can distinguish the vehicle, such as a license plate number.

[0162] In one embodiment, the monitoring method further includes: obtaining historical status data of the power battery in the vehicle; adjusting the charging strategy of charging the vehicle low-voltage battery with the power battery according to the historical status data, specifically including: adjusting the charging voltage, charging start state of charge, and charging end state of charge of the vehicle low-voltage battery according to the historical status data; wherein the historical status data includes the life and mileage of the power battery when charging the vehicle low-voltage battery with the power battery, as well as the charging time and temperature of the vehicle low-voltage battery. In this embodiment, if the vehicle low-voltage battery is a battery with abnormal capacity, it may be that the charging strategy of the power battery for charging the vehicle low-voltage battery is wrong, resulting in a shortened life of the vehicle low-voltage battery. The charging voltage, charging start state of charge, and charging end state of charge of the vehicle low-voltage battery can be adjusted according to the historical status data of charging the vehicle low-voltage battery with the power battery, thereby extending the life of the vehicle low-voltage battery. In one possible implementation, if a vehicle low-voltage battery with abnormal battery capacity is found, the life, mileage, charging time and temperature of the power battery charging it are obtained. If the life of the power battery is shorter than other power batteries, the lost mileage is large and the charging time of the vehicle low-voltage battery is long, it means that the power battery has a low charging voltage for the vehicle low-voltage battery, and the vehicle low-voltage battery may be passivated internally, resulting in abnormal capacity. In this case, it is necessary to appropriately increase the charging voltage and adjust the charging strategy of the power battery for charging the vehicle low-voltage battery.

[0163] In an embodiment of the present invention, the vehicle equipment can output a battery abnormality analysis request when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold. By obtaining the power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request (including but not limited to: battery voltage and state of charge, etc.), it can be determined whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold. Specifically, if the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle's low-voltage battery is determined to be a battery with abnormal capacity. Through such a setting, a vehicle's low-voltage battery with abnormal capacity can be identified in advance, which facilitates users to take timely measures to avoid the vehicle from failing to start normally due to abnormal capacity of the vehicle's low-voltage battery.

[0164] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be performed in such an order. They can be performed simultaneously (in parallel) or in other orders. These changes are within the scope of protection of the present invention.

[0165] Embodiment 2

[0166] See attached Figure 2 , Figure 2 FIG. 1 is a flow chart showing the main steps of a method for monitoring a vehicle low-voltage battery according to another embodiment of the present invention. Figure 2 As shown, the monitoring method in the embodiment of the present invention mainly includes the following steps:

[0167] Step S201: When the vehicle is stationary, detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold; if so, go to step S202.

[0168] In this embodiment, the meaning of the vehicle being stationary is the same as the meaning of the vehicle being stationary in the aforementioned term explanation, and for the sake of brevity, it is not repeated here. The preset voltage threshold can be flexibly set by those skilled in the art according to actual needs.

[0169] Step S202: Generate a battery abnormality analysis request based on the power-related parameters of the vehicle's low-voltage battery and send the battery abnormality analysis request to the background server, so that the background server can determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold.

[0170] In this embodiment, the power-related parameters include but are not limited to: battery voltage, state of charge, and other power-related parameters of the vehicle's low-voltage battery. The preset power parameter thresholds can be flexibly set by those skilled in the art according to actual needs.

[0171] Through the above steps S201 to S202, when the vehicle is stationary and the battery voltage of the vehicle's low-voltage battery is detected to be less than or equal to a preset voltage threshold, the embodiment of the present invention determines that the vehicle's low-voltage battery may have a capacity abnormality, and therefore immediately obtains the battery voltage and charge state and other power-related parameters of the vehicle's low-voltage battery, and outputs a battery abnormality analysis request based on these power-related parameters. After receiving the battery abnormality analysis request, the backend server and other devices will determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request with the preset power parameter threshold, and selectively output alarm information based on the judgment result, so that the vehicle's low-voltage battery with abnormal capacity can be identified in advance, which is convenient for users to take timely measures, and overcomes the defect that the vehicle cannot start normally due to abnormal capacity of the vehicle's low-voltage battery.

[0172] The above step S202 is further explained below.

[0173] In one embodiment, the step of "generating a battery abnormality analysis request according to the electric energy related parameters of the vehicle low-voltage battery" specifically includes: obtaining the battery temperature and electric energy related parameters of the vehicle low-voltage battery and the vehicle identification information of the current vehicle; generating a battery abnormality analysis request according to the battery temperature, the electric energy related parameters and the vehicle identification information, so that the background server can determine whether the vehicle low-voltage battery is a battery with abnormal capacity based on the correspondence between the preset battery temperature and the electric energy parameter threshold and matching the corresponding electric energy parameter threshold according to the battery temperature, and according to the comparison result between the electric energy related parameters and the electric energy parameter threshold. In this embodiment, the battery temperatures of different vehicle low-voltage batteries correspond to different electric energy parameter thresholds respectively. The electric energy parameter threshold corresponding to the battery temperature of the vehicle low-voltage battery in the battery abnormality analysis request under the condition of normal battery capacity can be obtained through the correspondence between the preset battery temperature and the electric energy parameter threshold. The vehicle low-voltage battery with abnormal battery capacity can be identified through the battery voltage threshold and the state of charge threshold, so that the user can replace the vehicle low-voltage battery in time to avoid the vehicle from failing to start normally due to the abnormal capacity of the vehicle low-voltage battery.

[0174] In this embodiment, the correspondence between the preset battery temperature and the electric energy parameter threshold can be flexibly set by those skilled in the art according to actual needs. For example, when the battery temperature of the vehicle low-voltage battery is 25°C, the corresponding battery voltage is 12.5V, and the state of charge SOC = 0.9. Similarly, the battery voltage threshold and the state of charge threshold can be flexibly set by those skilled in the art according to actual needs.

[0175] In one embodiment, after the step of "sending a battery abnormality analysis request to a background server", the monitoring method further includes: receiving an alarm message sent by the background server; wherein the alarm message is information sent by the background server after determining that the vehicle's low-voltage battery is a battery with abnormal capacity. In this embodiment, if the vehicle has been started, the alarm message can be displayed on the vehicle's display screen; if the vehicle has not been started, the alarm message can be displayed on the vehicle's display screen after the vehicle is started next time, so that the user can replace the vehicle's low-voltage battery in time to avoid the vehicle failing to start normally due to abnormal capacity of the vehicle's low-voltage battery. The vehicle identification information can be information that can distinguish the vehicle, such as a license plate number.

[0176] In one embodiment, the power-related parameters include the battery voltage and state of charge of the vehicle's low-voltage battery; wherein the power-related parameters are power-related parameters detected at the instant when the vehicle starts charging the vehicle's low-voltage battery after the vehicle is stationary and the battery voltage of the vehicle's low-voltage battery is detected to be less than or equal to a preset voltage threshold. In this embodiment, if the vehicle is stationary and the battery voltage of the vehicle's low-voltage battery is detected to be less than or equal to the preset voltage threshold, it means that the battery voltage of the vehicle's low-voltage battery is insufficient to start the vehicle, and the vehicle's low-voltage battery needs to be charged. At the moment of charging, the battery voltage of the vehicle's low-voltage battery will drop temporarily due to excessive battery load. At this time, the power-related parameters (battery voltage and state of charge) are the lowest values ​​of the vehicle's low-voltage battery. If the battery voltage at this time is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle's low-voltage battery may not be sufficient to start the vehicle, thereby identifying the vehicle's low-voltage battery with abnormal capacity in advance, so that the user can replace the vehicle's low-voltage battery in time to avoid the vehicle from failing to start normally due to abnormal capacity of the vehicle's low-voltage battery.

[0177] In an embodiment of the present invention, the vehicle equipment can output a battery abnormality analysis request when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold. By obtaining the power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request (including but not limited to: battery voltage and state of charge, etc.), it can be determined whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold. Specifically, if the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle's low-voltage battery is determined to be a battery with abnormal capacity. Through such a setting, a vehicle's low-voltage battery with abnormal capacity can be identified in advance, which facilitates users to take timely measures to avoid the vehicle from failing to start normally due to abnormal capacity of the vehicle's low-voltage battery.

[0178] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be performed in such an order. They can be performed simultaneously (in parallel) or in other orders. These changes are within the scope of protection of the present invention.

[0179] Furthermore, the present invention also provides a background server.

[0180] See attached Figure 3 , Figure 3 1 is a main structural block diagram of a background server according to Embodiment 1 of the present invention. Figure 3As shown, the background server in the embodiment of the present invention mainly includes a battery abnormality analysis request receiving module 11 and a battery abnormality analysis request processing module 12. In some embodiments, one or more of the battery abnormality analysis request receiving module 11 and the battery abnormality analysis request processing module 12 can be combined into one module. In some embodiments, the battery abnormality analysis request receiving module 11 can be configured to obtain the power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request in response to the received battery abnormality analysis request, wherein the battery abnormality analysis request is a request information output by the vehicle equipment when the vehicle is stationary and the battery voltage of the vehicle's low-voltage battery is detected to be less than or equal to a preset voltage threshold. The battery abnormality analysis request processing module 12 can be configured to determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters and the preset power parameter threshold. In one embodiment, the description of the specific implementation function can be found in steps S101-S102.

[0181] In one embodiment, the battery abnormality analysis request processing module 12 is further configured to perform the following operations: obtaining the battery temperature of the vehicle low-voltage battery in the battery abnormality analysis request; matching the corresponding power parameter threshold according to the battery temperature based on the preset correspondence between the battery temperature and the power parameter threshold. In one embodiment, the description of the specific implementation function can be referred to the description of step S102.

[0182] In one embodiment, the battery abnormality analysis request processing module 12 is further configured to perform the following operations: the power-related parameters include the battery voltage and the state of charge of the vehicle's low-voltage battery, and the power parameter thresholds include the battery voltage threshold and the state of charge threshold; if the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, the vehicle's low-voltage battery is determined to be a battery with abnormal capacity. In one embodiment, the description of the specific implementation function can be referred to in step S102.

[0183] In one embodiment, the power-related parameters in the battery abnormality analysis request are power-related parameters detected by the vehicle device at the instant when the vehicle starts charging the vehicle low-voltage battery after the vehicle is stationary and detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold. In one embodiment, the description of the specific implementation function can be referred to in step S102.

[0184] In one embodiment, the battery abnormality analysis request processing module 12 is further configured to perform the following operations: if it is determined that the vehicle low-voltage battery is a battery with abnormal capacity, the vehicle identification information in the battery abnormality analysis request is obtained, and an alarm message is sent to the vehicle service terminal and / or the vehicle user terminal according to the vehicle identification information. In one embodiment, the description of the specific implementation function can be referred to the description of step S102.

[0185] In one embodiment, the background server further includes a vehicle low-voltage battery charging strategy adjustment module 13, which is configured to perform the following operations: obtain the historical status data of the power battery in the vehicle; adjust the charging strategy for charging the vehicle low-voltage battery using the power battery according to the historical status data, specifically including: adjusting the charging voltage, charging start state of charge, and charging end state of charge of the vehicle low-voltage battery according to the historical status data; wherein the historical status data includes the life and mileage of the power battery when charging the vehicle low-voltage battery using the power battery, as well as the charging time and temperature of the vehicle low-voltage battery. In one embodiment, the description of the specific implementation function can be found in step S102.

[0186] The above backend server is used to execute Figure 1 The embodiment of the vehicle low-voltage battery monitoring method shown in the figure has similar technical principles, technical problems solved and technical effects produced. Technical personnel in this technical field can clearly understand that for the convenience and conciseness of description, the specific working process and related instructions of the background server can refer to the contents described in the embodiment of the vehicle low-voltage battery monitoring method (Example 1), which will not be repeated here.

[0187] Furthermore, the present invention also provides a monitoring device for a vehicle low-voltage battery.

[0188] See attached Figure 4 , Figure 4 FIG. 1 is a main structural block diagram of a monitoring device for a vehicle low-voltage battery according to a second embodiment of the present invention. Figure 4 As shown, the monitoring device in the embodiment of the present invention mainly includes a battery voltage detection module 21 and a battery abnormality analysis request module 22. In some embodiments, one or more of the battery voltage detection module 21 and the battery abnormality analysis request module 22 can be combined into one module. In some embodiments, the battery voltage detection module 21 can be configured to detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary. The battery abnormality analysis request module 22 can be configured to generate a battery abnormality analysis request based on the power-related parameters of the vehicle's low-voltage battery when the battery voltage detection module detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold and send the battery abnormality analysis request to the background server, so that the background server can determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold. In one embodiment, the description of the specific implementation function can be found in steps S201-S202.

[0189] In one embodiment, the battery abnormality analysis request module 22 is further configured to perform the following operations: obtain the battery temperature and power-related parameters of the vehicle's low-voltage battery and the vehicle identification information of the current vehicle; generate a battery abnormality analysis request based on the battery temperature, power-related parameters and vehicle identification information, so that the background server can match the corresponding power parameter threshold according to the preset battery temperature and the battery temperature, and determine whether the vehicle's low-voltage battery is a battery with abnormal capacity according to the comparison result between the power-related parameters and the power parameter threshold. In one embodiment, the description of the specific implementation function can be referred to the description of step S202.

[0190] In one embodiment, the battery abnormality analysis request module 22 is further configured to perform the following operations: receiving warning information sent by the background server; wherein the warning information is information sent by the background server after determining that the vehicle low-voltage battery is a battery with abnormal capacity. In one embodiment, the description of the specific implementation function can be referred to the description of step S202.

[0191] In one embodiment, the power-related parameters include the battery voltage and charge state of the vehicle's low-voltage battery; wherein the power-related parameters are power-related parameters detected at the instant when the vehicle's low-voltage battery is started to charge after the vehicle is stationary and the battery voltage of the vehicle's low-voltage battery is detected to be less than or equal to a preset voltage threshold. In one embodiment, the description of the specific implementation function can be referred to in step S202.

[0192] In one embodiment, the battery voltage detection module 21 includes a body control module (BCM), and the battery abnormality analysis request module 22 includes a vehicle control unit (VCU). In one embodiment, the description of the specific implementation function can refer to the description of step S202.

[0193] The above-mentioned vehicle low-voltage battery monitoring device is used to perform Figure 3 The embodiment of the vehicle low-voltage battery monitoring method shown in the figure has similar technical principles, technical problems solved and technical effects produced. Technicians in this technical field can clearly understand that for the convenience and conciseness of description, the specific working process and related instructions of the vehicle low-voltage battery monitoring device can refer to the contents described in the embodiment of the vehicle low-voltage battery monitoring method (Example 2), which will not be repeated here.

[0194] Furthermore, the present invention also provides a monitoring system for a vehicle low-voltage battery.

[0195] In an embodiment of a vehicle low-voltage battery monitoring system according to the present invention, the vehicle low-voltage battery monitoring system may include the background server in the aforementioned embodiment and the vehicle low-voltage battery monitoring device in the aforementioned embodiment, and the monitoring device may be configured to detect whether the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary; if so, a battery abnormality analysis request is generated according to the power-related parameters of the vehicle low-voltage battery and the battery abnormality analysis request is sent to the background server; the background server may be configured to obtain the power-related parameters of the vehicle low-voltage battery in the battery abnormality analysis request, and determine whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result between the power-related parameters and the preset power parameter threshold. It should be noted that the specific working process and related instructions of the vehicle low-voltage battery monitoring system can refer to the contents described in the embodiments of the background server and the embodiments of the vehicle low-voltage battery monitoring device, and will not be repeated here.

[0196] It is understood by those skilled in the art that all or part of the processes in the method for implementing the above-mentioned embodiment of the present invention can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned method embodiment 2 can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium, etc. that can carry the computer program code. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0197] Furthermore, the present invention also provides a control device.

[0198] In a control device according to an embodiment of the present invention, the control device includes a processor and a storage device, the storage device can be configured to store a program for executing the vehicle low-voltage battery monitoring method described in the first embodiment of the above method, and the processor can be configured to execute the program in the storage device, which includes but is not limited to the program for executing the vehicle low-voltage battery monitoring method of the above method embodiment. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The control device can be a control device device formed by various electronic devices.

[0199] In a control device according to another embodiment of the present invention, the control device includes a processor and a storage device, the storage device can be configured to store a program for executing the vehicle low-voltage battery monitoring method described in the second embodiment of the above method, and the processor can be configured to execute the program in the storage device, which includes but is not limited to the program for executing the vehicle low-voltage battery monitoring method of the above method embodiment. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The control device can be a control device device formed by various electronic devices.

[0200] Furthermore, the present invention also provides a computer-readable storage medium.

[0201] In a computer-readable storage medium according to an embodiment of the present invention, the computer-readable storage medium may be configured to store a program for executing the vehicle low-voltage battery monitoring method described in the first embodiment of the above method, and the program may be loaded and run by a processor to implement the above vehicle low-voltage battery monitoring method. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The computer-readable storage medium may be a storage device including various electronic devices. Optionally, the storage in the embodiment of the present invention is a non-temporary computer-readable storage medium.

[0202] In a computer-readable storage medium according to another embodiment of the present invention, the computer-readable storage medium may be configured to store a program for executing the vehicle low-voltage battery monitoring method described in the second embodiment of the above method, and the program may be loaded and run by a processor to implement the above vehicle low-voltage battery monitoring method. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The computer-readable storage medium may be a storage device including various electronic devices. Optionally, the storage in the embodiment of the present invention is a non-temporary computer-readable storage medium.

[0203] Further, it should be understood that since the setting of each module is only for illustrating the functional units of the system of the present invention, the physical devices corresponding to these modules can be the processor itself, or a part of the software in the processor, a part of the hardware, or a part of the combination of software and hardware. Therefore, the number of each module in the figure is only schematic.

[0204] Those skilled in the art will appreciate that the modules in the system may be adaptively split or merged. Such splitting or merging of specific modules will not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

[0205] So far, the technical solution of the present invention has been described in conjunction with an embodiment shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A vehicle low-voltage battery monitoring method, applied to a background server, characterized in that: The monitoring method comprises: In response to the received battery abnormality analysis request, obtaining power-related parameters of the vehicle low-voltage battery in the battery abnormality analysis request; According to the comparison result of the electric energy related parameters and the preset electric energy parameter threshold, it is judged whether the low-voltage battery of the vehicle is a battery with abnormal capacity; the electric energy related parameters include the battery voltage and the state of charge of the low-voltage battery of the vehicle, and the electric energy parameter threshold includes the battery voltage threshold and the state of charge threshold; If the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold, determining that the vehicle low-voltage battery is a battery with abnormal capacity; The battery abnormality analysis request is request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

2. The vehicle low-voltage battery monitoring method according to claim 1, characterized in that: Before the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result of the power-related parameter with the preset power parameter threshold value", the monitoring method further includes: Obtaining a battery temperature of a low-voltage battery of the vehicle in the battery abnormality analysis request; Based on a preset correspondence between the battery temperature and the electric energy parameter threshold, the corresponding electric energy parameter threshold is matched according to the battery temperature.

3. The vehicle low-voltage battery monitoring method according to claim 1, characterized in that: The power-related parameters in the battery abnormality analysis request are power-related parameters detected by the vehicle equipment at the instant when the vehicle starts charging the vehicle low-voltage battery after the vehicle is stationary and detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold.

4. The method for monitoring a vehicle low-voltage battery according to any one of claims 1 to 3, characterized in that: After the step of "determining whether the vehicle low-voltage battery is a battery with abnormal capacity according to the comparison result of the power-related parameter with the preset power parameter threshold value", the monitoring method further includes: If it is determined that the vehicle low-voltage battery is a battery with abnormal capacity, the vehicle identification information in the battery abnormality analysis request is obtained, and an alarm message is sent to the vehicle service terminal and / or the vehicle user terminal according to the vehicle identification information.

5. The method for monitoring a vehicle low-voltage battery according to any one of claims 1 to 3, characterized in that: The monitoring method further comprises: Obtain historical status data of the power battery in the vehicle; Adjusting the charging strategy of charging the vehicle low-voltage battery using the power battery according to the historical status data specifically includes: Adjusting the charging voltage, charging start state of charge and charging end state of charge of the vehicle low-voltage battery according to the historical state data; Among them, the historical status data includes the life and mileage of the power battery when the vehicle low-voltage battery is charged by the power battery, and the charging time and temperature of the vehicle low-voltage battery.

6. A vehicle low-voltage battery monitoring method, applied to a vehicle low-voltage battery monitoring device, characterized in that: The monitoring method comprises: When the vehicle is stationary, detecting whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold; If so, a battery abnormality analysis request is generated based on the power-related parameters of the vehicle's low-voltage battery and the battery abnormality analysis request is sent to the background server, so that the background server can determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold.

7. The vehicle low-voltage battery monitoring method according to claim 6, characterized in that: The step of "generating a battery abnormality analysis request according to the power-related parameters of the vehicle low-voltage battery" specifically includes: Obtaining battery temperature and power-related parameters of the vehicle's low-voltage battery and vehicle identification information of the current vehicle; A battery abnormality analysis request is generated according to the battery temperature, the electric energy-related parameters and the vehicle identification information, so that the background server can judge whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the correspondence between the preset battery temperature and the electric energy parameter threshold and matching the corresponding electric energy parameter threshold according to the battery temperature, and according to the comparison result between the electric energy-related parameters and the electric energy parameter threshold.

8. The vehicle low-voltage battery monitoring method according to claim 6, characterized in that: After the step of "sending the battery abnormality analysis request to the background server", the monitoring method further includes: Receiving the warning information sent by the backend server; The warning information is information sent by the background server after determining that the vehicle low-voltage battery is a battery with abnormal capacity.

9. The method for monitoring a vehicle low-voltage battery according to any one of claims 6 to 8, characterized in that: The power-related parameters include the battery voltage and charge state of the vehicle's low-voltage battery; wherein the power-related parameters are the power-related parameters detected at the instant when charging of the vehicle's low-voltage battery is started after the vehicle is stationary and it is detected that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

10. A backend server, characterized in that: The backend server comprises: A battery abnormality analysis request receiving module, configured to obtain, in response to a received battery abnormality analysis request, power-related parameters of a vehicle low-voltage battery in the battery abnormality analysis request; A battery abnormality analysis request processing module, configured to determine whether the vehicle low-voltage battery is a battery with abnormal capacity according to a comparison result of the power-related parameters and a preset power parameter threshold; the power-related parameters include a battery voltage and a state of charge of the vehicle low-voltage battery, and the power parameter threshold includes a battery voltage threshold and a state of charge threshold; The battery abnormality analysis request processing module is further configured to determine that the vehicle low-voltage battery is a battery with abnormal capacity if the battery voltage is less than or equal to the battery voltage threshold and the state of charge is greater than or equal to the state of charge threshold; The battery abnormality analysis request is request information output by the vehicle equipment when the vehicle is stationary and detects that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

11. The backend server according to claim 10, characterized in that: The battery abnormality analysis request processing module is further configured to perform the following operations: Obtaining a battery temperature of a low-voltage battery of the vehicle in the battery abnormality analysis request; Based on a preset correspondence between the battery temperature and the electric energy parameter threshold, the corresponding electric energy parameter threshold is matched according to the battery temperature.

12. The backend server according to claim 10, characterized in that: The power-related parameters in the battery abnormality analysis request are power-related parameters detected by the vehicle equipment at the instant when the vehicle starts charging the vehicle low-voltage battery after the vehicle is stationary and detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold.

13. The backend server according to any one of claims 10 to 12, characterized in that: The battery abnormality analysis request processing module is further configured to perform the following operations: If it is determined that the vehicle low-voltage battery is a battery with abnormal capacity, the vehicle identification information in the battery abnormality analysis request is obtained, and an alarm message is sent to the vehicle service terminal and / or the vehicle user terminal according to the vehicle identification information.

14. The backend server according to any one of claims 10 to 12, characterized in that: The backend server further includes a vehicle low-voltage battery charging strategy adjustment module, and the vehicle low-voltage battery charging strategy adjustment module is configured to perform the following operations: Obtain historical status data of the power battery in the vehicle; Adjusting the charging strategy of charging the vehicle low-voltage battery using the power battery according to the historical status data specifically includes: Adjusting the charging voltage, charging start state of charge and charging end state of charge of the vehicle low-voltage battery according to the historical state data; Among them, the historical status data includes the life and mileage of the power battery when the vehicle low-voltage battery is charged by the power battery, and the charging time and temperature of the vehicle low-voltage battery.

15. A monitoring device for a vehicle low-voltage battery, characterized in that: The monitoring device comprises: A battery voltage detection module, which is configured to detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary; A battery abnormality analysis request module is configured to generate a battery abnormality analysis request based on the power-related parameters of the vehicle low-voltage battery when the battery voltage detection module detects that the battery voltage of the vehicle low-voltage battery is less than or equal to a preset voltage threshold and send the battery abnormality analysis request to a background server, so that the background server can determine whether the vehicle low-voltage battery is a battery with abnormal capacity based on the comparison result of the power-related parameters with the preset power parameter threshold.

16. The monitoring device according to claim 15, characterized in that: The battery abnormality analysis request module is also configured to perform the following operations: Obtaining battery temperature and power-related parameters of the vehicle's low-voltage battery and vehicle identification information of the current vehicle; A battery abnormality analysis request is generated according to the battery temperature, the electric energy-related parameters and the vehicle identification information, so that the background server can judge whether the vehicle's low-voltage battery is a battery with abnormal capacity based on the correspondence between the preset battery temperature and the electric energy parameter threshold and matching the corresponding electric energy parameter threshold according to the battery temperature, and according to the comparison result between the electric energy-related parameters and the electric energy parameter threshold.

17. The monitoring device according to claim 15, characterized in that: After the step of "sending the battery abnormality analysis request to the background server", the battery abnormality analysis request module is further configured to perform the following operations: Receiving the warning information sent by the backend server; The warning information is information sent by the background server after determining that the vehicle low-voltage battery is a battery with abnormal capacity.

18. The monitoring device according to any one of claims 15 to 17, characterized in that: The power-related parameters include the battery voltage and charge state of the vehicle's low-voltage battery; wherein the power-related parameters are the power-related parameters detected at the instant when charging of the vehicle's low-voltage battery is started after the vehicle is stationary and it is detected that the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold.

19. The monitoring device according to claim 18, characterized in that: The battery voltage detection module includes a vehicle body controller, and the battery abnormality analysis request module includes a vehicle controller.

20. A monitoring system for a vehicle low-voltage battery, characterized in that: The monitoring system comprises a backend server as described in any one of claims 10 to 14 and a monitoring device for a vehicle low-voltage battery as described in any one of claims 15 to 19; The monitoring device is configured to detect whether the battery voltage of the vehicle's low-voltage battery is less than or equal to a preset voltage threshold when the vehicle is stationary; If yes, generating a battery abnormality analysis request according to the power-related parameters of the vehicle low-voltage battery and sending the battery abnormality analysis request to the background server; The background server is configured to obtain power-related parameters of the vehicle's low-voltage battery in the battery abnormality analysis request, and determine whether the vehicle's low-voltage battery is a battery with abnormal capacity based on a comparison result between the power-related parameters and a preset power parameter threshold.

21. A control device, comprising a processor and a storage device, wherein the storage device is suitable for storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by the processor to execute the vehicle low-voltage battery monitoring method according to any one of claims 1 to 5.

22. A control device, comprising a processor and a storage device, wherein the storage device is suitable for storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by the processor to execute the vehicle low-voltage battery monitoring method according to any one of claims 6 to 9.

23. A computer-readable storage medium storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by a processor to execute the vehicle low-voltage battery monitoring method according to any one of claims 1 to 5.

24. A computer-readable storage medium storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by a processor to execute the vehicle low-voltage battery monitoring method according to any one of claims 6 to 9.

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