An information management method and system

Abstract

This application provides an information management method and system. The method includes: a first battery management system synchronizing battery degradation-related information to a big data module; the big data module storing the battery degradation-related information in a separate database corresponding to the new energy electric vehicle; when the currently used first battery management system is replaced by a second battery management system, if the gateway receives a configuration command from a new diagnostic configuration module, the gateway sends the battery degradation-related information obtained from the big data module to the diagnostic configuration module; the diagnostic configuration module configures the obtained battery degradation-related information into the second battery management system and uses the second battery management system as a new first battery management system. Through this method, the second battery management system can be configured regardless of whether the stored battery degradation-related information can be read from the first battery management system.

Description

Technical Field

[0001] This application relates to the field of new energy electric vehicle technology, and in particular to an information management method and system. Background Technology

[0002] The battery management system (BMS) of new energy electric vehicles stores information related to battery degradation. During operation, the BMS relies on this stored information. When replacing the BMS, the stored degradation information needs to be transferred to the new BMS. However, if the original BMS is damaged and unable to access its stored degradation information, current technology cannot transfer this information to the new BMS. This battery-related information is crucial and can affect the safe operation of the battery. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide an information management method and system, so that during the process of replacing the original battery management system with a new battery management system, the new battery management system can be configured regardless of whether the stored power battery degradation information can be read from the original battery management system, thereby improving the safety of the power battery.

[0004] In a first aspect, embodiments of this application provide an information management method applied to an information management system on a new energy electric vehicle. The information management system includes a first battery management system, a gateway, and an in-vehicle data transmission module interconnected with each other. The in-vehicle data transmission module is also communicatively connected to a big data module external to the new energy electric vehicle. The method includes:

[0005] The first battery management system synchronizes the battery degradation information of the power battery in the new energy electric vehicle to the big data module through the vehicle data transmission module, so that the big data module stores the battery degradation information in a separate database corresponding to the new energy electric vehicle.

[0006] When the currently used first battery management system is replaced by a second battery management system, if the gateway receives a configuration instruction sent by the diagnostic configuration module outside the new energy electric vehicle, the gateway obtains the power battery degradation related information of the new energy electric vehicle from the big data module through the vehicle data transmission module, and sends the power battery degradation related information to the diagnostic configuration module.

[0007] The second battery management system receives the power battery degradation-related information sent by the diagnostic configuration module through the gateway, configures the power battery degradation-related information, and uses the second battery management system as a new first battery management system.

[0008] In conjunction with the first aspect, this application provides a first possible implementation of the first aspect, wherein the information management system further includes a vehicle control module; the vehicle control module is connected to the first battery management system; the method further includes:

[0009] The first battery management system collects the power battery status information of the power battery;

[0010] For each type of first fault, the first battery management system analyzes the first fault information based on the power battery status information; the first fault information includes whether the first fault has occurred, and the fault level when the first fault occurs; the first fault is determined based on the computing power of the first battery management system.

[0011] When the first fault occurs, the first battery management system sends the fault level of the first fault to the vehicle control module;

[0012] The vehicle control module determines and executes the response measures based on the fault level of the first fault.

[0013] In conjunction with the first possible implementation of the first aspect, this application provides a second possible implementation of the first aspect, wherein the method further includes:

[0014] For each type of first fault, when the first fault occurs, the first battery management system sends the first fault information of the first fault to the big data module through the vehicle data transmission module, so that the big data module stores each first fault information in the separate database corresponding to the new energy electric vehicle;

[0015] The first battery management system sends the power battery safety-related information from the power battery status information to the big data module through the vehicle data transmission module. This allows the big data module to analyze the second fault information for each type of second fault based on the power battery safety-related information, and store each second fault information in a separate database corresponding to the new energy electric vehicle. The second fault is determined based on the computing power of the big data module, which is greater than the computing power of the first battery management system.

[0016] If the gateway receives a fault information acquisition instruction sent by the diagnostic configuration module, the gateway acquires the first fault information and the second fault information from the big data module through the vehicle data transmission module;

[0017] The gateway sends the first fault information and the second fault information it has acquired to the diagnostic configuration module, so that the display screen of the diagnostic configuration module displays the first fault information and the second fault information to the maintenance personnel.

[0018] In conjunction with the second possible implementation of the first aspect, this application provides a third possible implementation of the first aspect, wherein, after the first battery management system sends the power battery safety-related information in the power battery status information to the big data module through the vehicle data transmission module, the method further includes:

[0019] When the vehicle control module receives a warning message sent by the big data module through the vehicle data transmission module and the first battery management system, it issues a fault warning based on the warning message. The warning message is determined by the big data module based on the fault development trend of the third fault. The fault development trend is obtained by the big data module through fault analysis of the third fault based on the power battery safety-related information.

[0020] In conjunction with the first aspect, this application provides a fourth possible implementation of the first aspect, wherein the separate database corresponding to the new energy electric vehicle is established by the big data module based on the national standard code of the power battery in the new energy electric vehicle.

[0021] Secondly, this application also provides an information management system, which includes a first battery management system, a gateway, and an in-vehicle data transmission module interconnected with each other; the in-vehicle data transmission module is also communicatively connected to a big data module outside the new energy electric vehicle.

[0022] The first battery management system is used to synchronize the battery degradation information of the power battery in the new energy electric vehicle to the big data module through the vehicle data transmission module, so that the big data module stores the battery degradation information in a separate database corresponding to the new energy electric vehicle.

[0023] The gateway is configured to, when the currently used first battery management system is replaced by a second battery management system, if it receives a configuration instruction sent by the diagnostic configuration module outside the new energy electric vehicle, obtain the power battery degradation related information of the new energy electric vehicle from the big data module through the vehicle data transmission module, and send the power battery degradation related information to the diagnostic configuration module.

[0024] The second battery management system is used to receive the power battery degradation-related information sent by the diagnostic configuration module through the gateway, configure the power battery degradation-related information, and use the second battery management system as a new first battery management system.

[0025] In conjunction with the second aspect, this application provides a first possible implementation of the second aspect, wherein the information management system further includes a vehicle control module; the vehicle control module is connected to the first battery management system;

[0026] The first battery management system is also used to collect the power battery status information of the power battery;

[0027] The first battery management system is further configured to analyze first fault information for each first fault based on the power battery status information; the first fault information includes whether the first fault has occurred, and the fault level when the first fault occurs; the first fault is determined based on the computing power of the first battery management system.

[0028] The first battery management system is also configured to send the fault level of the first fault to the vehicle control module when the first fault occurs;

[0029] The vehicle control module is used to determine the response measures for the fault level based on the fault level of the first fault, and to execute the response measures.

[0030] In conjunction with the first possible implementation of the second aspect, this application provides a second possible implementation of the second aspect, wherein the first battery management system is further configured to:

[0031] For each type of first fault, when the first fault occurs, the first fault information of the first fault is sent to the big data module through the vehicle data transmission module, so that the big data module stores each first fault information in the separate database corresponding to the new energy electric vehicle;

[0032] The power battery safety-related information in the power battery status information is sent to the big data module through the vehicle data transmission module, so that the big data module analyzes the second fault information of each second fault based on the power battery safety-related information, and stores each second fault information in a separate database corresponding to the new energy electric vehicle; wherein, the second fault is determined based on the computing power of the big data module; the computing power of the big data module is greater than the computing power of the first battery management system;

[0033] The gateway is also used for:

[0034] If a fault information acquisition instruction is received from the diagnostic configuration module, the first fault information and the second fault information are acquired from the big data module through the vehicle data transmission module.

[0035] The acquired first fault information and second fault information are sent to the diagnostic configuration module so that the display screen of the diagnostic configuration module shows the first fault information and the second fault information to the maintenance personnel.

[0036] In conjunction with the second possible implementation of the second aspect, this application provides a third possible implementation of the second aspect, wherein the vehicle control module is further configured to perform a fault warning based on the warning information sent by the big data module when it receives the warning information sent by the big data module through the vehicle data transmission module and the first battery management system; wherein the warning information is determined by the big data module based on the fault development trend of the third fault; the fault development trend is obtained by the big data module through fault analysis of the third fault based on the power battery safety-related information.

[0037] In conjunction with the second aspect, this application provides a fourth possible implementation of the second aspect, wherein the separate database corresponding to the new energy electric vehicle is established by the big data module based on the national standard code of the power battery in the new energy electric vehicle.

[0038] This application provides an information management method and system in which a first battery management system synchronizes power battery degradation-related information to a big data module. When the first battery management system is replaced with a second battery management system due to damage or other reasons, in this embodiment, it is only necessary to obtain the power battery degradation-related information from the big data module. In this way, regardless of whether the power battery degradation-related information can be read from the first battery management system, the power battery degradation-related information can be configured into the second battery management system, thereby improving the safety of the power battery.

[0039] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A flowchart of an information management method provided in an embodiment of this application is shown;

[0042] Figure 2 This paper shows a schematic diagram of the structure of an information management system provided in an embodiment of this application;

[0043] Figure 3 A schematic diagram of the structure of the second information management system provided in the embodiments of this application is shown;

[0044] Figure 4 A schematic diagram of the structure of the third information management system provided in the embodiments of this application is shown. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0046] In existing technologies, when replacing a primary battery management system with a new one, if information related to battery degradation is read from the primary battery management system, then if the primary battery management system is damaged and unable to read the information, the existing technology cannot configure the new battery management system. Therefore, this application provides an information management method and system, which will be described below through embodiments.

[0047] To facilitate understanding of this embodiment, a detailed description of an information management method disclosed in this application embodiment will be provided first. This method is applied to an information management system in a new energy electric vehicle. The information management system includes a first battery management system, a gateway, and an onboard data transmission module that are interconnected. The onboard data transmission module is also communicatively connected to a big data module external to the new energy electric vehicle.

[0048] like Figure 1 As shown, the process includes the following steps S101-S103:

[0049] S101: The first battery management system synchronizes the battery degradation information of the power battery in the new energy electric vehicle to the big data module through the vehicle data transmission module, so that the big data module can store the battery degradation information in the separate database corresponding to the new energy electric vehicle.

[0050] In this embodiment, the first battery management system stores the latest power battery degradation-related information, which includes information such as power battery lifespan, usage time, and number of charge / discharge cycles.

[0051] like Figure 2 As shown, during the use of the power battery, when the power battery degradation-related information is updated, the first battery management system sends the updated power battery degradation-related information to the vehicle data transmission module, and the vehicle data transmission module forwards the power battery degradation-related information to the big data module.

[0052] The big data module is an external module for new energy electric vehicles (NEVs). This module stores information related to the degradation of the power batteries in multiple NEVs. Specifically, when storing this information, the big data module creates a separate database for each NEV based on the national standard code of its power battery, and then stores the battery degradation information for that NEV in that separate database.

[0053] Because each power battery has a unique national standard code, each new energy electric vehicle also has a unique database.

[0054] S102: When the currently used first battery management system is replaced by the second battery management system, if the gateway receives a configuration instruction sent by the diagnostic configuration module outside the new energy electric vehicle, the gateway obtains the power battery degradation information of the new energy electric vehicle from the big data module through the vehicle data transmission module, and sends the power battery degradation information to the diagnostic configuration module.

[0055] In this embodiment, when the first battery management system needs to be replaced due to damage, aging, or other reasons, the first battery management system in the new energy electric vehicle is replaced with a second battery management system, wherein the second battery management system can be a new battery management system.

[0056] After replacing the first battery management system with the second battery management system, it is necessary to configure the power battery degradation information in the second battery management system so that the second battery management system can replace the first battery management system for subsequent work.

[0057] In this embodiment, when configuring the power battery degradation information in the second battery management system, a diagnostic configuration module external to the new energy electric vehicle is used to connect to the gateway in the new energy electric vehicle. The diagnostic configuration module can be a module used by a repair shop to diagnose the new energy electric vehicle.

[0058] The diagnostic configuration module sends a configuration command to the gateway, which then sends the command to the big data module via the vehicle data transmission module. Based on the configuration command, the big data module transmits its stored power battery degradation information to the diagnostic configuration module via the vehicle data transmission module and the gateway.

[0059] S103: The second battery management system receives power battery degradation-related information sent by the diagnostic configuration module through the gateway, configures the power battery degradation-related information, and uses the second battery management system as a new first battery management system.

[0060] In this embodiment, the gateway sends the obtained power battery degradation-related information to the diagnostic configuration module. After the diagnostic configuration module configures the power battery degradation-related information into the second battery management system, the second battery management system can act as the new first battery management system, replacing the original first battery management system.

[0061] In one possible implementation, such as Figure 3 As shown, the information management system also includes a vehicle control module; the vehicle control module is connected to the first battery management system; the method can also be executed according to the following steps S201-S204:

[0062] S201: The first battery management system collects the power battery status information.

[0063] In this embodiment, the power battery status information includes any one or more of the following: battery temperature, battery current, voltage of each cell, atmospheric pressure in the power battery (the power battery is a sealed casing; when the battery experiences thermal runaway, it will release harmful gases, which will increase the internal pressure of the power battery pack), power battery smoke concentration, insulation resistance (the positive and negative terminals of the power battery should be insulated from the power battery casing; if the insulator ages, the insulation resistance between the positive or negative terminal of the power battery and the power battery casing will decrease), and charging mode (including AC charging and DC charging).

[0064] like Figure 4 As shown, when the first battery management system collects the power battery status information, it specifically collects: battery current, atmospheric pressure in the power battery, and smoke concentration in the power battery through the sensor module; and battery temperature, voltage of each cell, insulation resistance, and charging mode through the acquisition module.

[0065] S202: For each type of first fault, the first battery management system analyzes the first fault information of the first fault based on the power battery status information; the first fault information includes whether the first fault has occurred, and the fault level when the first fault occurs; the first fault is determined based on the computing power of the first battery management system.

[0066] In this embodiment, the computing power of the first battery management system is limited, therefore, it cannot analyze all faults. The first battery management system can only analyze the first fault within its computing power range.

[0067] S203: When the first fault occurs, the first battery management system sends the fault level of the first fault to the vehicle control module.

[0068] S204: The vehicle control module determines and executes response measures based on the fault level of the first fault.

[0069] For example, when the first fault is that the power battery temperature is too high, the response measure for this fault level can be to stop charging the power battery. At this time, the vehicle control module can execute this response measure.

[0070] In one possible implementation, the method may also be performed according to the following steps S301-S304:

[0071] S301: For each type of first fault, when the first fault occurs, the first battery management system sends the first fault information of the first fault to the big data module through the vehicle data transmission module, so that the big data module stores each first fault information in the separate database corresponding to the new energy electric vehicle.

[0072] S302: The first battery management system sends the power battery safety-related information from the power battery status information to the big data module through the vehicle data transmission module, so that the big data module can analyze the second fault information of each second fault based on the power battery safety-related information, and store each second fault information in a separate database corresponding to the new energy electric vehicle; wherein, the second fault is determined based on the computing power of the big data module; the computing power of the big data module is greater than the computing power of the first battery management system.

[0073] In this embodiment, the power battery safety-related information is at least a portion of the power battery status information, and the power battery safety-related information can be specified according to the specific application scenario.

[0074] Generally, the computing power of the big data module is greater than that of the first battery management system. Therefore, the second fault that the big data module can analyze is usually one that the first battery management system cannot analyze. In this embodiment, the first fault and the second fault are different faults.

[0075] In this embodiment, the order of steps S301 and S302 is not specified. Step S301 can be executed first and then step S302, or step S302 can be executed first and then step S301, or they can be executed simultaneously.

[0076] S303: If the gateway receives a fault information acquisition instruction sent by the diagnostic configuration module, the gateway acquires the first fault information and the second fault information from the big data module through the vehicle data transmission module.

[0077] In this embodiment, when maintenance personnel need to perform maintenance and testing on a new energy electric vehicle, they connect the diagnostic configuration module to the gateway, such as... Figure 3 As shown, the diagnostic configuration module sends a fault information acquisition command to the gateway. The gateway forwards the fault information acquisition command to the big data module through the vehicle data transmission module. The big data module then returns the first and second fault information of the new energy electric vehicle to the gateway through the vehicle data transmission module.

[0078] S304: The gateway sends the first fault information and the second fault information it has obtained to the diagnostic configuration module so that the display screen of the diagnostic configuration module can display the first fault information and the second fault information to the maintenance personnel.

[0079] Using the methods described above, maintenance personnel can obtain information about the faults of the new energy electric vehicle, which facilitates vehicle repair.

[0080] In one possible implementation, after the first battery management system sends the power battery safety-related information from the power battery status information to the big data module via the vehicle data transmission module, the method can also be performed according to the following steps:

[0081] When the vehicle control module receives a warning message sent by the big data module through the vehicle data transmission module and the first battery management system, it issues a fault warning based on the warning message. The warning message is determined by the big data module based on the fault development trend of the third fault. The fault development trend is obtained by the big data module through fault analysis of the third fault based on power battery safety-related information.

[0082] In this embodiment, the first battery management system sends the power battery safety-related information from the power battery status information to the big data module via the vehicle data transmission module. The big data module then performs fault analysis on each type of third fault based on the power battery safety-related information to obtain the fault development trend. The big data module sequentially sends the fault development trend to the vehicle control module via the vehicle data transmission module and the first battery management system. Upon receiving the warning information sent by the big data module, the vehicle control module issues a fault warning based on this information.

[0083] For example, when the third fault detection involves monitoring the insulation resistance trend of the power battery, if the power battery suffers from poor airtightness due to impacts or other reasons, allowing moisture to enter the battery and causing its insulation resistance to continuously decrease, a fault warning can be issued based on this decreasing insulation resistance trend. Specifically, when the insulation resistance trend shows a decreasing trend, the vehicle control module receives a warning message from the big data module indicating a decreasing insulation resistance trend. Based on this warning message, the vehicle control module then issues a fault warning to the driver.

[0084] Based on the same technical concept, embodiments of this application also provide an information management system, such as... Figure 2 As shown, the information management system on the new energy electric vehicle includes a first battery management system, a gateway, and an on-board data transmission module that are interconnected; the on-board data transmission module is also communicatively connected to a big data module outside the new energy electric vehicle.

[0085] The first battery management system is used to synchronize the battery degradation information of the power battery in the new energy electric vehicle to the big data module through the vehicle data transmission module, so that the big data module stores the battery degradation information in a separate database corresponding to the new energy electric vehicle.

[0086] The gateway is configured to, when the currently used first battery management system is replaced by a second battery management system, if it receives a configuration instruction sent by the diagnostic configuration module outside the new energy electric vehicle, obtain the power battery degradation related information of the new energy electric vehicle from the big data module through the vehicle data transmission module, and send the power battery degradation related information to the diagnostic configuration module.

[0087] The second battery management system is used to receive the power battery degradation-related information sent by the diagnostic configuration module through the gateway, configure the power battery degradation-related information, and use the second battery management system as a new first battery management system.

[0088] Optionally, the information management system further includes a vehicle control module; the vehicle control module is connected to the first battery management system.

[0089] The first battery management system is also used to collect the power battery status information of the power battery;

[0090] The first battery management system is further configured to analyze first fault information for each first fault based on the power battery status information; the first fault information includes whether the first fault has occurred, and the fault level when the first fault occurs; the first fault is determined based on the computing power of the first battery management system.

[0091] The first battery management system is also configured to send the fault level of the first fault to the vehicle control module when the first fault occurs;

[0092] The vehicle control module is used to determine the response measures for the fault level based on the fault level of the first fault, and to execute the response measures.

[0093] Optionally, the first battery management system is further configured to:

[0094] For each type of first fault, when the first fault occurs, the first fault information of the first fault is sent to the big data module through the vehicle data transmission module, so that the big data module stores each first fault information in the separate database corresponding to the new energy electric vehicle;

[0095] The power battery safety-related information in the power battery status information is sent to the big data module through the vehicle data transmission module, so that the big data module analyzes the second fault information of each second fault based on the power battery safety-related information, and stores each second fault information in a separate database corresponding to the new energy electric vehicle; wherein, the second fault is determined based on the computing power of the big data module; the computing power of the big data module is greater than the computing power of the first battery management system;

[0096] The gateway is also used for:

[0097] If a fault information acquisition instruction is received from the diagnostic configuration module, the first fault information and the second fault information are acquired from the big data module through the vehicle data transmission module.

[0098] The acquired first fault information and second fault information are sent to the diagnostic configuration module so that the display screen of the diagnostic configuration module shows the first fault information and the second fault information to the maintenance personnel.

[0099] Optionally, the vehicle control module is further configured to issue a fault warning based on the warning information sent by the big data module when it receives the warning information sent by the big data module through the vehicle data transmission module and the first battery management system; wherein the warning information is determined by the big data module based on the fault development trend of the third fault; the fault development trend is obtained by the big data module through fault analysis of the third fault based on the power battery safety-related information.

[0100] Optionally, the separate database corresponding to the new energy electric vehicle is established by the big data module based on the national standard code of the power battery in the new energy electric vehicle.

[0101] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process of the system described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0102] In the several embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. The system embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division, and there may be other division methods in actual implementation. Furthermore, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some communication interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0103] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0104] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0105] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0106] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. An information management method, characterized in that, The method is applied to the information management system of a new energy electric vehicle, the information management system including a first battery management system, a gateway, and an in-vehicle data transmission module that are interconnected. The vehicle-mounted data transmission module is also communicatively connected to a big data module external to the new energy electric vehicle; the method includes: When the power battery degradation information of the power battery in the new energy electric vehicle is updated, the first battery management system will synchronize the updated power battery degradation information to the big data module through the vehicle data transmission module, so that the big data module will store the power battery degradation information in the separate database corresponding to the new energy electric vehicle. When the currently used first battery management system is replaced by a second battery management system, if the gateway receives a configuration instruction sent by the diagnostic configuration module outside the new energy electric vehicle, the gateway obtains the power battery degradation related information of the new energy electric vehicle from the big data module through the vehicle data transmission module, and sends the power battery degradation related information to the diagnostic configuration module. The second battery management system receives the power battery degradation-related information sent by the diagnostic configuration module through the gateway, configures the power battery degradation-related information, and uses the second battery management system as a new first battery management system. The method further includes: The first battery management system collects the power battery status information of the power battery; For each type of first fault, the first battery management system analyzes the first fault information based on the power battery status information; the first fault is determined based on the computing power of the first battery management system. For each type of first fault, when the first fault occurs, the first battery management system sends the first fault information of the first fault to the big data module through the vehicle data transmission module, so that the big data module stores each first fault information in the separate database corresponding to the new energy electric vehicle; The first battery management system sends the power battery safety-related information from the power battery status information to the big data module through the vehicle data transmission module. This allows the big data module to analyze the second fault information for each type of second fault based on the power battery safety-related information, and store each second fault information in a separate database corresponding to the new energy electric vehicle. The second fault is determined based on the computing power of the big data module, which is greater than that of the first battery management system. The second fault that the big data module can analyze is one that the first battery management system cannot analyze; the first fault and the second fault are different faults. If the gateway receives a fault information acquisition instruction sent by the diagnostic configuration module, the gateway acquires the first fault information and the second fault information from the big data module through the vehicle data transmission module; The gateway sends the first fault information and the second fault information it has acquired to the diagnostic configuration module, so that the display screen of the diagnostic configuration module displays the first fault information and the second fault information to the maintenance personnel; The information management system further includes a vehicle control module; the vehicle control module is connected to the first battery management system; after the first battery management system sends the power battery safety-related information in the power battery status information to the big data module through the vehicle data transmission module, the method further includes: When the vehicle control module receives a warning message sent by the big data module through the vehicle data transmission module and the first battery management system, it issues a fault warning based on the warning message. The warning message is determined by the big data module based on the fault development trend of the third fault. The fault development trend is obtained by the big data module through fault analysis of the third fault based on the power battery safety-related information.

2. The method according to claim 1, characterized in that, The first fault information includes whether the first fault has occurred, and the fault level when the first fault occurs; the method further includes: When the first fault occurs, the first battery management system sends the fault level of the first fault to the vehicle control module; The vehicle control module determines and executes the response measures based on the fault level of the first fault.

3. The method according to claim 1, characterized in that, The separate database corresponding to the new energy electric vehicle is established by the big data module based on the national standard code of the power battery in the new energy electric vehicle.

4. An information management system, characterized in that, The information management system on the new energy electric vehicle includes a first battery management system, a gateway, and an on-board data transmission module that are interconnected; the on-board data transmission module is also communicatively connected to a big data module outside the new energy electric vehicle. The first battery management system is used to synchronize the updated power battery degradation information to the big data module through the vehicle data transmission module after the power battery degradation information of the power battery in the new energy electric vehicle is updated, so that the big data module stores the power battery degradation information in the separate database corresponding to the new energy electric vehicle. The gateway is configured to, when the currently used first battery management system is replaced by a second battery management system, if it receives a configuration instruction sent by the diagnostic configuration module outside the new energy electric vehicle, obtain the power battery degradation related information of the new energy electric vehicle from the big data module through the vehicle data transmission module, and send the power battery degradation related information to the diagnostic configuration module. The second battery management system is used to receive the power battery degradation-related information sent by the diagnostic configuration module through the gateway, configure the power battery degradation-related information, and use the second battery management system as a new first battery management system. The first battery management system is also used to collect the power battery status information of the power battery; The first battery management system is further configured to analyze first fault information for each first fault based on the power battery status information; the first fault is determined based on the computing power of the first battery management system. The first battery management system is also used for: For each type of first fault, when the first fault occurs, the first fault information of the first fault is sent to the big data module through the vehicle data transmission module, so that the big data module stores each first fault information in the separate database corresponding to the new energy electric vehicle; The system transmits power battery safety-related information from the power battery status information to the big data module via the vehicle data transmission module. This allows the big data module to analyze the second fault information for each type of second fault based on the power battery safety-related information, and store each second fault information in a separate database corresponding to the new energy electric vehicle. The second fault is determined based on the computing power of the big data module, which is greater than the computing power of the first battery management system. The second fault that the big data module can analyze is one that the first battery management system cannot analyze, and the first fault and the second fault are different faults. The gateway is also used for: If a fault information acquisition instruction is received from the diagnostic configuration module, the first fault information and the second fault information are acquired from the big data module through the vehicle data transmission module. The first fault information and the second fault information obtained are sent to the diagnostic configuration module so that the display screen of the diagnostic configuration module displays the first fault information and the second fault information to the maintenance personnel. The information management system further includes a vehicle control module; the vehicle control module is connected to the first battery management system; The vehicle control module is further configured to issue a fault warning based on the warning information sent by the big data module when it receives the warning information sent by the big data module through the vehicle data transmission module and the first battery management system; wherein the warning information is determined by the big data module based on the fault development trend of the third fault; the fault development trend is obtained by the big data module through fault analysis of the third fault based on the power battery safety-related information.

5. The system according to claim 4, characterized in that, The first fault information includes whether the first fault has occurred, and the fault level when the first fault occurs; The first battery management system is also configured to send the fault level of the first fault to the vehicle control module when the first fault occurs; The vehicle control module is used to determine the response measures for the fault level based on the fault level of the first fault, and to execute the response measures.

6. The system according to claim 4, characterized in that, The separate database corresponding to the new energy electric vehicle is established by the big data module based on the national standard code of the power battery in the new energy electric vehicle.

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