Charging safety performance detection method and system for electric vehicle
By using real-time monitoring and safety performance monitoring models, the problem of neglecting the influence of internal and external battery structures in traditional detection methods has been solved, enabling efficient safety monitoring and automated repair during the electric vehicle charging process, thereby improving detection accuracy and battery pack safety.
Patent Information
- Application Number
- CN202511850259.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-02-24
AI Technical Summary
Traditional charging safety testing methods are often limited to single-dimensional monitoring, ignoring the impact of internal and external battery structures on heat transfer, leading to shortened battery life, reduced safety, and decreased vehicle performance. Furthermore, data analysis and dimensional processing present challenges.
By monitoring the charging data of the battery pack in real time, a safety performance monitoring model is established, and charging curves of current, voltage and temperature are obtained. Matching and alignment and difference calculation are performed to determine the current state of the battery pack, generate safety monitoring results, and automatically repair in case of failure.
It improves the accuracy of electric vehicle charging safety monitoring, ensures the safety and performance stability of battery packs during charging, and enables automated fault repair.
Smart Images
Figure CN121552980A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of new energy vehicle technology, specifically, it relates to a method and system for testing the charging safety performance of electric vehicles. Background Technology
[0002] As a representative of clean energy transportation, the battery charging safety performance of electric vehicles has always been a focus of research and attention. With the rapid development of electric vehicles, battery pack heating issues have attracted widespread attention during the charging process. Abnormal heating during charging leads to shortened battery life, reduced safety, and decreased overall vehicle performance.
[0003] Traditional charging safety testing methods are often limited to single-dimensional monitoring, ignoring the impact of internal and external battery structures on heat transfer. Furthermore, traditional charging safety performance testing methods face challenges in data analysis and dimensional processing, as well as deficiencies in battery structure design, resulting in low accuracy of existing technologies. Summary of the Invention
[0004] To address the aforementioned problems and technical deficiencies, this application adopts the following technical solution: a method for testing the charging safety performance of electric vehicles, comprising the following steps: Step 1: Monitor the battery pack of the electric vehicle in real time and obtain charging data of the battery pack during the charging process; Step 2: Establish a safety performance monitoring model, perform calculations on the charging data, and obtain the current state of the battery pack based on the calculation results; Step 3: Determine the current state of the battery pack and obtain the battery pack safety monitoring results.
[0005] Preferably, the charging data acquired by the real-time monitoring includes: current data, voltage data, temperature data, and timestamps corresponding to each data item.
[0006] Furthermore, the establishment of the safety performance monitoring model includes: Determine the battery pack model, obtain the historical charging data for the corresponding model, and obtain the safety threshold of the target battery from the historical application data. The safety thresholds are calculated to obtain the current charging safety curve, voltage charging safety curve, and temperature charging safety curve.
[0007] Furthermore, the calculation and processing of the charging data includes: Calculate and obtain the current charging curve, voltage charging curve, and temperature charging curve; Based on the timestamp, the current charging curve, voltage charging curve, and temperature charging curve are matched and aligned with the current charging safety curve, voltage charging safety curve, and temperature charging safety curve, respectively. At preset timestamps, calculate the differences between the current charging curve, voltage charging curve, and temperature charging curve and the current charging safety curve, voltage charging safety curve, and temperature charging safety curve. The calculated difference is compared with a preset curve difference threshold, and the current state of the battery pack is obtained based on the comparison result.
[0008] Furthermore, comparing the calculated difference with a preset curve difference threshold includes: Compare all calculated differences with a preset curve difference threshold. If the proportion of calculated differences greater than the curve difference threshold is greater than a preset proportion threshold among all calculated differences, then the battery pack is determined to be in a fault state.
[0009] A charging safety performance testing system for electric vehicles, comprising: The charging management module is used to monitor the battery pack of electric vehicles in real time and obtain charging data of the battery pack during the charging process. The safety calculation module establishes a safety performance monitoring model, performs calculations on charging data, and obtains the current state of the battery pack based on the calculation results. The status judgment module determines the current status of the battery pack and obtains the battery pack safety monitoring results.
[0010] Preferably, the charging management module can automatically generate a safety performance test report and fully record all information during the charging process.
[0011] Preferably, it also includes an automatic repair module for storing multiple fault category cases and repair measures, and presets multiple fault threshold ranges corresponding to fault categories. When the charging data reaches the fault threshold range, the corresponding repair measures are taken to safely repair the charging battery pack.
[0012] An electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor executes the program to implement the content of the electric vehicle charging safety performance testing method as described above.
[0013] A computer-readable storage medium having a computer program stored thereon, characterized in that, when executed by a processor, the computer program implements the content of the electric vehicle charging safety performance testing method as described above.
[0014] Compared to existing technologies, the beneficial effects of this application are as follows: This application obtains charging safety curves from historical data, then monitors the battery pack of electric vehicles in real time, acquires charging data of the battery pack during the charging process, calculates the current charging curve, compares the charging curve with the charging safety curve, thereby obtaining the current state of the battery pack and thus obtaining the battery pack safety monitoring results, improving the accuracy of electric vehicle charging safety monitoring. Attached Figure Description
[0015] In the attached diagram: Figure 1 This is a schematic diagram of the method steps in an embodiment of this application; Figure 2 This is a schematic diagram of the system structure according to an embodiment of this application; Figure 3 This is a schematic diagram of the device structure according to an embodiment of this application. Detailed Implementation
[0016] 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 some embodiments of this application, but not all embodiments. Generally, the components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Example 1
[0017] like Figure 1 As shown, a method for testing the charging safety performance of an electric vehicle includes the following steps: Real-time monitoring of electric vehicle battery packs to obtain charging data during the charging process; The charging data acquired in real time includes: current data, voltage data, temperature data, and timestamps corresponding to each data point.
[0018] Establish a safety performance monitoring model, perform calculations on charging data, and obtain the current state of the battery pack based on the calculation results; Establishing a safety performance monitoring model includes: Determine the battery pack model, obtain the historical charging data for the corresponding model, and obtain the safety threshold of the target battery from the historical application data. The safety thresholds are calculated to obtain the current charging safety curve, voltage charging safety curve, and temperature charging safety curve.
[0019] The calculation and processing of charging data includes: Calculate and obtain the current charging curve, voltage charging curve, and temperature charging curve; Based on the timestamp, the current charging curve, voltage charging curve, and temperature charging curve are matched and aligned with the current charging safety curve, voltage charging safety curve, and temperature charging safety curve, respectively. At preset timestamps, calculate the differences between the current charging curve, voltage charging curve, and temperature charging curve and the current charging safety curve, voltage charging safety curve, and temperature charging safety curve. The calculated difference is compared with a preset curve difference threshold, and the current state of the battery pack is obtained based on the comparison result.
[0020] The comparison between the calculated difference and the preset curve difference threshold includes: Compare all calculated differences with a preset curve difference threshold. If the proportion of calculated differences greater than the curve difference threshold is greater than a preset proportion threshold among all calculated differences, then the battery pack is determined to be in a fault state.
[0021] Assess the current state of the battery pack and obtain battery pack safety monitoring results. Example 2
[0022] like Figure 2 As shown, a charging safety performance testing system for electric vehicles includes: The charging management module is used to monitor the battery pack of electric vehicles in real time and obtain charging data of the battery pack during the charging process. The charging management module can automatically generate a safety performance test report and record all information during the charging process.
[0023] The safety calculation module establishes a safety performance monitoring model, performs calculations on charging data, and obtains the current state of the battery pack based on the calculation results. The status judgment module determines the current status of the battery pack and obtains the battery pack safety monitoring results.
[0024] It also includes an automatic repair module, which stores various fault category cases and repair measures, and presets multiple fault threshold ranges corresponding to fault categories. When the charging data reaches the fault threshold range, the corresponding repair measures are taken to safely repair the charging battery pack. Example 3
[0025] like Figure 3As shown, from a hardware perspective, this application provides an embodiment of an electronic device containing all or part of a method for testing the charging safety performance of electric vehicles. The electronic device includes a service processor and a distributed memory. The service processor is connected to the memory. The distributed memory stores a service self-management program configured to store machine-readable instructions. The service processor executes the service self-management program. When the instructions are executed by the processor, they implement the method for testing the charging safety performance of electric vehicles as described above.
[0026] From a hardware perspective, in order to effectively improve the flexibility, versatility, and efficiency of data acquisition, this application provides embodiments of an electronic device comprising all or part of a method for detecting the charging safety performance of electric vehicles. The electronic device specifically includes the following components: The system includes a processor, memory, a communications interface, and a bus; wherein the processor, memory, and communications interface communicate with each other via the bus; the communications interface is used to realize information transmission between the core business system of the electric vehicle charging safety performance testing method, user terminals, and related databases and other related devices; the logic controller can be a desktop computer, tablet computer, or mobile terminal, etc., but this embodiment is not limited to these.
[0027] In this embodiment, the logic controller can be implemented with reference to the embodiment of the electric vehicle charging safety performance detection method, the content of which is incorporated herein, and repeated parts will not be described again.
[0028] It is understood that the user terminal may include smartphones, tablet electronic devices, network set-top boxes, portable computers, desktop computers, personal digital assistants (PDAs), in-vehicle devices, smart wearable devices, etc., wherein the smart wearable devices may include smart glasses, smartwatches, smart bracelets, etc.
[0029] In practical applications, some parts of the electric vehicle charging safety performance testing method can be executed on the electronic device side as described above, or all operations can be completed in the client device. The choice can be made based on the processing power of the client device and the limitations of the user's usage scenario, and this application does not impose any limitations on this. If all operations are completed in the client device, the client device may further include a processor.
[0030] The aforementioned client device may have a communication module (i.e., a communication unit) that can communicate with a remote server to achieve data transmission with the server. The server may include a server on the task scheduling center side, and in other implementation scenarios, it may also include a server on an intermediate platform, such as a server on a third-party server platform that has a communication link with the task scheduling center server. The server may include a single computer device, a server cluster composed of multiple servers, or a server structure of a distributed device. Example 4
[0031] Embodiments of this application also provide a computer-readable storage medium capable of implementing the charging safety performance testing method for electric vehicles with a server or client execution subject as described in the above embodiments. The computer-readable storage medium stores a computer program that, when executed by a processor, implements all the contents of the charging safety performance testing method for electric vehicles with a server or client execution subject as described in the above embodiments.
[0032] The embodiments of this application may be provided as methods, apparatus, or computer program products. Therefore, this application may take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0033] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0034] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0035] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0036] The embodiments described above are merely preferred embodiments of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of this application, and these all fall within the protection scope of this application.
Claims
1. A method for testing the charging safety performance of electric vehicles, characterized in that, Includes the following steps: Step 1: Monitor the battery pack of the electric vehicle in real time and obtain charging data of the battery pack during the charging process; Step 2: Establish a safety performance monitoring model, perform calculations on the charging data, and obtain the current state of the battery pack based on the calculation results; Step 3: Determine the current state of the battery pack and obtain the battery pack safety monitoring results.
2. The method for testing the charging safety performance of an electric vehicle according to claim 1, characterized in that, The charging data acquired by the real-time monitoring includes: current data, voltage data, temperature data, and timestamps corresponding to each data item.
3. The method for testing the charging safety performance of an electric vehicle according to claim 2, characterized in that, The establishment of the safety performance monitoring model includes: Determine the battery pack model, obtain the historical charging data for the corresponding model, and obtain the safety threshold of the target battery from the historical application data. The safety thresholds are calculated to obtain the current charging safety curve, voltage charging safety curve, and temperature charging safety curve.
4. The method for testing the charging safety performance of an electric vehicle according to claim 3, characterized in that, The calculation and processing of the charging data includes: Calculate and obtain the current charging curve, voltage charging curve, and temperature charging curve; Based on the timestamp, the current charging curve, voltage charging curve, and temperature charging curve are matched and aligned with the current charging safety curve, voltage charging safety curve, and temperature charging safety curve, respectively. At preset timestamps, calculate the differences between the current charging curve, voltage charging curve, and temperature charging curve and the current charging safety curve, voltage charging safety curve, and temperature charging safety curve. The calculated difference is compared with a preset curve difference threshold, and the current state of the battery pack is obtained based on the comparison result.
5. The method for testing the charging safety performance of an electric vehicle according to claim 4, characterized in that, The step of comparing the calculated difference with a preset curve difference threshold includes: Compare all calculated differences with a preset curve difference threshold. If the proportion of calculated differences greater than the curve difference threshold is greater than a preset proportion threshold among all calculated differences, then the battery pack is determined to be in a fault state.
6. A charging safety performance testing system for electric vehicles, characterized in that, include: The charging management module is used to monitor the battery pack of electric vehicles in real time and obtain charging data of the battery pack during the charging process. The safety calculation module establishes a safety performance monitoring model, performs calculations on charging data, and obtains the current state of the battery pack based on the calculation results. The status judgment module determines the current status of the battery pack and obtains the battery pack safety monitoring results.
7. The electric vehicle charging safety performance testing system according to claim 6, characterized in that, The charging management module can automatically generate a safety performance test report and record all information during the charging process.
8. The charging safety performance testing system for electric vehicles according to claim 6, characterized in that, It also includes an automatic repair module, which stores various fault category cases and repair measures, and presets multiple fault threshold ranges corresponding to fault categories. When the charging data reaches the fault threshold range, the corresponding repair measures are taken to safely repair the charging battery pack.
9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the content of the electric vehicle charging safety performance testing method according to claim 1.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the content of the electric vehicle charging safety performance testing method as described in claim 1.