Vehicle battery temperature monitoring method, device, equipment and medium

Abstract

The invention provides a vehicle battery temperature monitoring method, device and equipment and a medium, and the method comprises the steps: testing a historical vehicle, and obtaining the historical working condition data of a historical battery of the historical vehicle in a full life cycle; according to the difference of the temperature rise rate in the historical working condition data, dividing the working process of the historical vehicle into different use scenes, and determining scene thresholds corresponding to the use scenes; and monitoring the temperature of a to-be-measured battery of the target vehicle based on to-be-measured working condition data of the target vehicle and the scene threshold in the corresponding use scene. According to the invention, on the basis of the data of the full life cycle, the target vehicle is monitored for different use scenes, so that the comprehensiveness of the data and the accuracy of the monitoring result are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle battery temperature monitoring, and in particular to a method, device, equipment and medium for vehicle battery temperature monitoring. Background Art

[0002] With the rapid growth of new energy vehicle sales, batteries of various materials are widely used as carriers for storing and utilizing electric energy. However, batteries generate a lot of heat during the charging and discharging process, which will cause the battery temperature to rise. Excessive temperature may cause internal short circuits, shell ruptures, and battery leakage, so it is very necessary to pay attention to temperature changes during battery use.

[0003] In the prior art, the data considered in the battery temperature monitoring method is relatively simple, that is, the battery is only tested during the charging process or only during the discharging process. The data collected in this way may be lost, resulting in inaccurate monitoring results. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a method, device, equipment and medium for monitoring vehicle battery temperature to overcome the problems in the prior art.

[0005] In a first aspect, an embodiment of the present application provides a method for monitoring vehicle battery temperature, the method comprising:

[0006] Testing historical vehicles to obtain historical operating condition data of historical batteries of the historical vehicles over their entire life cycle;

[0007] According to the difference in the temperature rise rate in the historical working condition data, the historical vehicle working process is divided into different usage scenarios, and the scenario threshold corresponding to each usage scenario is determined;

[0008] Based on the working condition data to be tested of the target vehicle and the scenario threshold value corresponding to the usage scenario, the temperature of the battery to be tested of the target vehicle is monitored.

[0009] In some technical solutions of the present application, the above historical battery and the battery to be tested both include a preset number of temperature probes; the scene threshold includes multiple probe thresholds;

[0010] According to the difference in the temperature rise rate in the historical working condition data, the historical vehicle working process is divided into different usage scenarios, and the scenario threshold corresponding to each usage scenario is determined;

[0011] Dividing the historical vehicle operation process into different usage scenarios according to the difference in the temperature rise rate in the historical operating condition data;

[0012] Using the probe thresholds of all temperature probes in the usage scenario as the scene threshold of the usage scenario;

[0013] The monitoring of the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the target vehicle and the scene threshold value corresponding to the usage scene includes:

[0014] Based on the working condition data to be tested of the temperature probe in the battery to be tested and the corresponding probe threshold, the temperature of the battery to be tested of the target vehicle is monitored.

[0015] In some technical solutions of the present application, the above historical operating condition data includes historical probe temperatures at multiple moments within the operating condition time period; the method determines the probe threshold of the temperature probe in the following manner:

[0016] By performing a linear fit on the historical probe temperature, a plurality of historical slopes are obtained;

[0017] The probe threshold is determined according to a representative parameter in the historical slope.

[0018] In some technical solutions of the present application, the above-mentioned representative parameters include: upper quartile and lower quartile;

[0019] The step of determining the probe threshold according to the representative parameter in the historical slope includes:

[0020] The sum of the upper quartile and the adjustment product is used as the probe threshold; wherein the adjustment product is the product of the sum of the upper quartile and the lower quartile and the adjustment parameter.

[0021] In some technical solutions of the present application, the above method obtains the adjustment parameter in the following manner:

[0022] For each of the usage scenarios, the temperature probes are divided into different groups according to the positional relationship between the temperature probes;

[0023] According to the distance between each group of temperature probes and the battery thermal management unit, the adjustment parameters of each temperature probe in the group are determined.

[0024] In some technical solutions of the present application, the temperature of the battery to be tested of the target vehicle is monitored based on the test condition data of the temperature probe in the battery to be tested and the corresponding probe threshold, including:

[0025] Calculating the slope to be measured of the working condition data to be measured, and comparing the slope to be measured with the corresponding probe threshold;

[0026] If the slope to be measured is greater than the probe threshold, an excessive temperature rise rate warning is issued.

[0027] In some technical solutions of the present application, the factors affecting the temperature rise rate in the above method include the battery thermal management unit startup state and the charge and discharge mode;

[0028] The method is divided into usage scenarios according to the battery thermal management unit activation state and the charge and discharge mode, including:

[0029] Fast charging and cooling scenario, slow charging and cooling scenario, discharge and cooling scenario, fast charging and heating scenario, slow charging and heating scenario, discharge and heating scenario, fast charging and no heating scenario, slow charging and no heating scenario, discharge and no heating scenario.

[0030] In a second aspect, an embodiment of the present application provides a device for monitoring vehicle battery temperature, the device comprising:

[0031] An acquisition module, used to test a historical vehicle and acquire historical operating condition data of a historical battery of the historical vehicle over its entire life cycle;

[0032] A division module, used to divide the working process of the historical vehicle into different usage scenarios according to the difference in the temperature rise rate in the historical working condition data, and determine the scenario threshold corresponding to each of the usage scenarios;

[0033] The monitoring module is used to monitor the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the target vehicle and the scene threshold value corresponding to the usage scene.

[0034] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned vehicle battery temperature monitoring method when executing the computer program.

[0035] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned vehicle battery temperature monitoring method are executed.

[0036] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0037] The method of the present application includes testing a historical vehicle to obtain historical operating condition data of the historical battery of the historical vehicle over its entire life cycle; dividing the working process of the historical vehicle into different usage scenarios according to the difference in temperature rise rate in the historical operating condition data, and determining the scene threshold corresponding to each of the usage scenarios; monitoring the temperature of the battery to be tested of the target vehicle based on the operating condition data to be tested of the target vehicle and the scene threshold corresponding to the usage scenario.

[0038] This application monitors the target vehicle based on the data of the entire life cycle and divides it into different usage scenarios, ensuring the comprehensiveness of the data and the accuracy of the monitoring results.

[0039] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A schematic diagram of a process for monitoring vehicle battery temperature provided in an embodiment of the present application is shown;

[0042] Figure 2 A schematic diagram showing a usage scenario provided by an embodiment of the present application is shown;

[0043] Figure 3 A schematic diagram of a vehicle battery temperature monitoring device provided in an embodiment of the present application is shown;

[0044] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart under the guidance of the content of the present application, or remove one or more operations from the flowchart.

[0046] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0047] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0048] With the rapid growth of new energy vehicle sales, batteries of various materials are widely used as carriers for storing and utilizing electric energy. However, batteries generate a lot of heat during the charging and discharging process, which will cause the battery temperature to rise. Excessive temperature may cause internal short circuits, shell ruptures, and battery leakage, so it is very necessary to pay attention to temperature changes during battery use.

[0049] In the prior art, the data considered in the battery temperature monitoring method is relatively simple, that is, the battery is only tested during the charging process or only during the discharging process. The data collected in this way may be lost, resulting in inaccurate monitoring results.

[0050] Based on this, the embodiments of the present application provide a method, device, equipment and medium for monitoring the temperature of a vehicle battery, which are described below through embodiments.

[0051] Figure 1 A schematic flow chart of a vehicle battery temperature monitoring method provided in an embodiment of the present application is shown, wherein the method includes steps S101-S103; specifically:

[0052] S101, testing a historical vehicle to obtain historical operating condition data of a historical battery of the historical vehicle over its entire life cycle;

[0053] S102, dividing the historical vehicle operation process into different usage scenarios according to the difference in the temperature rise rate in the historical operating condition data, and determining a scenario threshold corresponding to each usage scenario;

[0054] S103 . Based on the working condition data to be tested of the target vehicle and a scenario threshold value corresponding to the usage scenario, the temperature of the battery to be tested of the target vehicle is monitored.

[0055] This application monitors the target vehicle based on the data of the entire life cycle and divides it into different usage scenarios, ensuring the comprehensiveness of the data and the accuracy of the monitoring results.

[0056] Some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0057] The present application provides a method for monitoring vehicle battery temperature, in which the vehicle to be monitored is referred to as a target vehicle. Before monitoring the target vehicle, the embodiment of the present application needs to first obtain historical operating data of historical vehicles. The target vehicle here can be one of the historical vehicles, or it can be a vehicle of the same model as the historical vehicle. In the prior art, the battery of the historical vehicle is generally provided with a preset number of temperature probes, generally set to fifteen, and for the convenience of description, these fifteen temperature probes are numbered 1-15.

[0058] After the historical vehicles are determined, the historical vehicles need to be tested. The tests here are comprehensive, including the charging and discharging process and different thermal management modes. When the historical vehicles are tested, the temperatures of fifteen temperature probes are collected. The temperature values ​​of the fifteen temperature probes are used as historical operating condition data. Since the data collection process runs through the entire test process, the temperature values ​​of the fifteen temperature probes here represent the historical operating condition data of the entire life cycle of the historical vehicles. In the specific implementation, the temperature data is transmitted from TBOX to kafka, and after processing, it is stored in Hive in a unified format for calling. When determining the historical operating condition data, the embodiment of the present application needs to select data whose operating condition lasts for a preset time (more than five minutes) to prevent the non-representative data that has just entered the operating condition from becoming all the data of the current operating condition, causing potential data drift.

[0059] After obtaining the historical operating condition data of the historical vehicle, the operating condition threshold is determined by analyzing the historical operating condition data. The temperature of the battery to be tested of the target vehicle is monitored based on the determined operating condition threshold.

[0060] When analyzing historical operating condition data, it is taken into account that the on state of the battery thermal management unit has a greater impact on the temperature, the current size has a greater impact on the temperature, and the temperature monitoring mainly focuses on scenarios where the temperature rise rate is too large. Based on the above considerations, in order to ensure the accuracy of the monitoring results, the embodiment of the present application divides the working process of the historical vehicle into different usage scenarios according to the difference in the temperature rise rate in the historical operating condition data, and determines the scene threshold value for each usage scenario. The temperature of the battery to be tested in the target vehicle is monitored based on the scene threshold. That is, the embodiment of the present application further improves the accuracy of the monitoring results by refining the threshold value.

[0061] In the process of historical vehicle operation, since the battery thermal management unit mode and current size have a great influence on the temperature rise, the embodiment of the present application can determine the factors affecting the temperature rise rate as the battery thermal management unit opening state and the charging and discharging mode (directly affecting the current size). Taking the thermal management heating mode as an example, considering the extreme working conditions below zero degrees, the current thermal management strategy is to raise the battery pack by at least 5°C / min; failure to perform secondary grouping on such scenarios will result in a large number of false alarms, or cause the algorithm to need to select a very tolerant threshold and lose accuracy, and the same is true for the thermal management cooling mode; the power and current are higher during fast charging, and the heat generated is significantly greater than that of slow charging conditions.

[0062] like Figure 2 As shown, the usage scenarios of the embodiments of the present application are divided into the following according to the activation state of the battery thermal management unit and the charging and discharging mode: fast charging and cooling scenario, slow charging and cooling scenario, discharge cooling scenario, fast charging and heating scenario, slow charging and heating scenario, discharge heating scenario, fast charging and unheating scenario, slow charging and unheating scenario, and discharge and unheating scenario.

[0063] Furthermore, since the battery includes multiple temperature probes, the scene threshold in the embodiment of the present application includes multiple probe thresholds. That is, the embodiment of the present application refines the scene threshold into the probe threshold of each temperature probe, and monitors each probe of the target vehicle based on each probe threshold. During specific monitoring, the embodiment of the present application obtains the working condition data to be tested of each temperature probe in the battery to be tested of the target vehicle, and compares the working condition data to be tested with the corresponding probe threshold. If the working condition data to be tested is greater than the probe threshold, it means that the temperature of the battery to be tested rises too fast, and an early warning is issued. If the working condition data to be tested is less than or equal to the probe threshold, it means that the temperature rise of the battery to be tested is normal and can be used normally.

[0064] In an optional embodiment, when determining the probe threshold, the embodiment of the present application obtains multiple historical slopes by linearly fitting the historical probe temperature; and determines the probe threshold based on representative parameters in the historical slopes. The representative parameters include: an upper quartile and a lower quartile; determining the probe threshold based on the representative parameters in the historical slopes includes: taking the sum of the upper quartile and the adjustment product as the probe threshold; wherein the adjustment product is the product of the sum of the upper quartile and the lower quartile and the adjustment parameter. The adjustment parameter is obtained in the following manner: for each of the usage scenarios, the temperature probes are divided into different groups according to the positional relationship between the temperature probes; and the adjustment parameters of each temperature probe in the group are determined according to the distance between each group of temperature probes and the battery thermal management unit.

[0065] For example, for a certain working condition, a total of N time sampling points are set. The number of temperature probes is set to M, and the probe temperature T in this working condition time period is recorded.ij , i = 1, 2, 3 ... N, j = 1, 2, 3 ... M. In this condition, the temperature T under this condition is calculated for each temperature probe. qj Perform a linear fit and determine the slope as K j , j = 1, 2, 3...M. Calculate the slope K of j temperature probes j The outlier slope value in . Calculate K j The upper quartile Q1 and the lower quartile Q2 of , then the corresponding threshold N is:

[0066] N=Q1+δ*(Q1+Q2)

[0067] Among them, δ is a parameter adjusted according to the achieved effect.

[0068] Figure 3 A schematic diagram of the structure of a vehicle battery temperature monitoring device provided in an embodiment of the present application is shown, and the device includes:

[0069] An acquisition module, used to test a historical vehicle and acquire historical operating condition data of a historical battery of the historical vehicle over its entire life cycle;

[0070] A division module, used to divide the working process of the historical vehicle into different usage scenarios according to the difference in the temperature rise rate in the historical working condition data, and determine the scenario threshold corresponding to each of the usage scenarios;

[0071] The monitoring module is used to monitor the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the target vehicle and the scene threshold value corresponding to the usage scene.

[0072] The historical battery and the battery to be tested both include a preset number of temperature probes; the scenario threshold includes a plurality of probe thresholds;

[0073] According to the difference in the temperature rise rate in the historical working condition data, the historical vehicle working process is divided into different usage scenarios, and the scenario threshold corresponding to each usage scenario is determined;

[0074] Dividing the historical vehicle operation process into different usage scenarios according to the difference in the temperature rise rate in the historical operating condition data;

[0075] Using the probe thresholds of all temperature probes in the usage scenario as the scene threshold of the usage scenario;

[0076] The monitoring of the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the target vehicle and the scene threshold value corresponding to the usage scene includes:

[0077] Based on the working condition data to be tested of the temperature probe in the battery to be tested and the corresponding probe threshold, the temperature of the battery to be tested of the target vehicle is monitored.

[0078] The historical operating condition data includes historical probe temperatures at multiple moments in the operating condition time period; the method determines the probe threshold of the temperature probe by:

[0079] By performing a linear fit on the historical probe temperature, a plurality of historical slopes are obtained;

[0080] The probe threshold is determined according to a representative parameter in the historical slope.

[0081] The representative parameters include: upper quartile and lower quartile;

[0082] The step of determining the probe threshold according to the representative parameter in the historical slope includes:

[0083] The sum of the upper quartile and the adjustment product is used as the probe threshold; wherein the adjustment product is the product of the sum of the upper quartile and the lower quartile and the adjustment parameter.

[0084] The adjustment parameters are obtained by:

[0085] For each of the usage scenarios, the temperature probes are divided into different groups according to the positional relationship between the temperature probes;

[0086] According to the distance between each group of temperature probes and the battery thermal management unit, the adjustment parameters of each temperature probe in the group are determined.

[0087] The monitoring of the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the temperature probe in the battery to be tested and the corresponding probe threshold value includes:

[0088] Calculating the slope to be measured of the working condition data to be measured, and comparing the slope to be measured with the corresponding probe threshold;

[0089] If the slope to be measured is greater than the probe threshold, an excessive temperature rise rate warning is issued.

[0090] The factors affecting the temperature rise rate in the method include the battery thermal management unit activation state and the charge and discharge mode;

[0091] The method is divided into usage scenarios according to the battery thermal management unit activation state and the charge and discharge mode, including:

[0092] Fast charging and cooling scenario, slow charging and cooling scenario, discharge and cooling scenario, fast charging and heating scenario, slow charging and heating scenario, discharge and heating scenario, fast charging and no heating scenario, slow charging and no heating scenario, discharge and no heating scenario.

[0093] like Figure 4 As shown, an embodiment of the present application provides an electronic device for executing the vehicle battery temperature monitoring method in the present application, the device includes a memory, a processor, a bus, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the vehicle battery temperature monitoring method when executing the computer program.

[0094] Specifically, the above-mentioned memory and processor may be general-purpose memory and processor, which are not specifically limited here. When the processor runs the computer program stored in the memory, the above-mentioned vehicle battery temperature monitoring method can be executed.

[0095] Corresponding to the vehicle battery temperature monitoring method in the present application, an embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned vehicle battery temperature monitoring method are executed.

[0096] Specifically, the storage medium can be a general storage medium, such as a mobile disk, a hard disk, etc. When the computer program on the storage medium is run, the above-mentioned vehicle battery temperature monitoring method can be executed.

[0097] In the embodiments provided in the present application, it should be understood that the disclosed systems and methods can be implemented in other ways. The system embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of systems or units, which can be electrical, mechanical or other forms.

[0098] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0099] In addition, each functional unit in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0100] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0101] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and are not to be understood as indicating or implying relative importance.

[0102] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. They should all be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for monitoring vehicle battery temperature, characterized in that: The method comprises: Testing historical vehicles to obtain historical operating condition data of historical batteries of the historical vehicles over their entire life cycle; According to the difference in the temperature rise rate in the historical working condition data, the historical vehicle working process is divided into different usage scenarios, and the scenario threshold corresponding to each usage scenario is determined; Based on the working condition data to be tested of the target vehicle and the scenario threshold value corresponding to the usage scenario, the temperature of the battery to be tested of the target vehicle is monitored.

2. The method according to claim 1, characterized in that The historical battery and the battery to be tested both include a preset number of temperature probes; the scenario threshold includes a plurality of probe thresholds; According to the difference in the temperature rise rate in the historical working condition data, the historical vehicle working process is divided into different usage scenarios, and the scenario threshold corresponding to each usage scenario is determined; Dividing the historical vehicle operation process into different usage scenarios according to the difference in the temperature rise rate in the historical operating condition data; Using the probe thresholds of all temperature probes in the usage scenario as the scene threshold of the usage scenario; The monitoring of the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the target vehicle and the scene threshold value corresponding to the usage scene includes: Based on the working condition data to be tested of the temperature probe in the battery to be tested and the corresponding probe threshold, the temperature of the battery to be tested of the target vehicle is monitored.

3. The method according to claim 2, characterized in that The historical operating condition data includes historical probe temperatures at multiple moments in the operating condition time period; the method determines the probe threshold of the temperature probe by: By performing a linear fit on the historical probe temperature, a plurality of historical slopes are obtained; The probe threshold is determined according to a representative parameter in the historical slope.

4. The method according to claim 3, characterized in that: The representative parameters include: upper quartile and lower quartile; The step of determining the probe threshold according to the representative parameter in the historical slope includes: The sum of the upper quartile and the adjustment product is used as the probe threshold; wherein the adjustment product is the product of the sum of the upper quartile and the lower quartile and the adjustment parameter.

5. The method according to claim 4, characterized in that The method obtains the adjustment parameter in the following manner: For each of the usage scenarios, the temperature probes are divided into different groups according to the positional relationship between the temperature probes; According to the distance between each group of temperature probes and the battery thermal management unit, the adjustment parameters of each temperature probe in the group are determined.

6. The method according to claim 2, characterized in that The monitoring of the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the temperature probe in the battery to be tested and the corresponding probe threshold value includes: Calculating the slope to be measured of the working condition data to be measured, and comparing the slope to be measured with the corresponding probe threshold; If the slope to be measured is greater than the probe threshold, an excessive temperature rise rate warning is issued.

7. The method according to claim 1, characterized in that The factors affecting the temperature rise rate in the method include the battery thermal management unit activation state and the charge and discharge mode; The method is divided into usage scenarios according to the battery thermal management unit activation state and the charge and discharge mode, including: Fast charging and cooling scenario, slow charging and cooling scenario, discharge and cooling scenario, fast charging and heating scenario, slow charging and heating scenario, discharge and heating scenario, fast charging and no heating scenario, slow charging and no heating scenario, discharge and no heating scenario.

8. A device for monitoring vehicle battery temperature, characterized in that: The device comprises: An acquisition module, used to test a historical vehicle and acquire historical operating condition data of a historical battery of the historical vehicle over its entire life cycle; A division module, used to divide the working process of the historical vehicle into different usage scenarios according to the difference in the temperature rise rate in the historical working condition data, and determine the scenario threshold corresponding to each of the usage scenarios; The monitoring module is used to monitor the temperature of the battery to be tested of the target vehicle based on the working condition data to be tested of the target vehicle and the scene threshold value corresponding to the usage scene.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the method for vehicle battery temperature monitoring as described in any one of claims 1 to 7 are performed.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, executes the steps of the vehicle battery temperature monitoring method as claimed in any one of claims 1 to 7.

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