CN-119575211-B - Method and system for testing sampling front end in battery pack, electronic equipment and storage medium

CN119575211BCN 119575211 BCN119575211 BCN 119575211BCN-119575211-B

Abstract

The application relates to a method, a system, electronic equipment and a storage medium for testing a sampling front end in a battery pack. Determining a current test mode according to the access condition of a test object, wherein the test object at least comprises a sampling plate in a battery pack and an integrated sampling front end, supplying power to the test object corresponding to the current test mode according to the current test mode, executing a preset test case to the test object after the power supply is completed, and outputting a test result. The method for testing the sampling front end in the battery pack can realize a multi-dimensional, multi-level and more comprehensive testing scheme for the integral sampling front end in the battery pack with the C2P scheme.

Inventors

WU BO
WANG SHAOFEI
HE HUI
ZHANG SHUCUN
LIU YINTONG
LI HUAJIAN
WU LIANGHAO
HU HAIBIN
ZHANG XINYU
WEI LIANJUN
Jin Yunzhao

Assignees

广东汇天航空航天科技有限公司

Dates

Publication Date: 20260508
Application Date: 20241211

Claims (11)

1. A method for testing the sampling front end in a battery pack, comprising the steps of: Determining a current test mode according to the access condition of a test object, wherein the test object at least comprises a sampling plate in a battery pack and an integrated sampling front end; Powering the test object corresponding to the current test mode according to the current test mode, and executing a preset test case corresponding to the test object to test the test object after powering is completed; And outputting a test result.
2. The method according to claim 1, wherein determining the current test mode according to the condition of the test object access comprises: Determining the current test mode as a sampling plate detection mode aiming at the sampling plate of the battery pack according to the sampling plate access sampling plate tool, or, And according to the integrated sampling front end access sampling front end tool, determining the current test mode as a sampling front end detection mode aiming at the sampling front end of the battery pack.
3. The method according to claim 2, wherein the powering the test object corresponding to the current test mode according to the current test mode, and executing a preset test case on the test object after powering is completed, includes: When the current test mode is a sampling plate detection mode, switching the operation mode into a sampling plate detection mode aiming at a sampling plate of the battery pack, supplying power to the sampling plate and the sampling plate tool corresponding to the sampling plate detection mode according to the switched sampling plate detection mode, executing a preset test case for the sampling plate after the power supply is completed to test, or, When the current test mode is a sampling front end detection mode, switching an operation mode into the sampling front end detection mode aiming at the sampling front end of the battery pack, supplying power to the sampling front end corresponding to the sampling front end detection mode and a sampling front end tool according to the switched sampling front end detection mode, and executing a preset test case for the sampling front end after the power supply is completed.
4. The method according to claim 2, wherein the powering the test object corresponding to the current test mode according to the current test mode, and executing a preset test case on the test object after powering is completed, includes: when the current test mode is a sampling plate detection mode aiming at the sampling plate of the battery pack, the first power supply module is used for carrying out first power supply on the sampling plate corresponding to the sampling plate detection mode and the sampling plate tool, the first test execution module is used for executing a preset test case on the sampling plate to carry out first test after the power supply is completed, or, And when the current test mode is a sampling front end detection mode aiming at the sampling front end of the battery pack, carrying out second power supply on the sampling front end corresponding to the sampling front end detection mode and the sampling front end tool through a second power supply module, and after the power supply is finished, executing a preset test case on the sampling front end by a second test execution module to carry out second test.
5. The method of any one of claims 1 to 4, wherein outputting the test results comprises: and outputting a test result passing the test according to the fact that the difference value between the detection value of the preset parameter and the target value of the corresponding parameter in the preset test case is in the preset error range.
6. A battery pack in-sampling front-end testing system, comprising: The system comprises a mode determining module, a test module and a test module, wherein the mode determining module is used for determining a current test mode according to the access condition of a test object, wherein the test object at least comprises a sampling plate in a battery pack and an integrated sampling front end; The power module is used for supplying power to the test object corresponding to the current test mode according to the current test mode; The test execution module is used for executing the test of the preset test cases corresponding to the test objects on the test objects after the power supply module finishes supplying power and outputting test results.
7. The system of claim 6, further comprising a sampling plate tool and a sampling front end tool, wherein the mode determination module comprises: A first mode determining module, configured to determine, according to the sampling board access sampling board tool, that a current test mode is a sampling board detection mode for the sampling board of the battery pack, or, And the second mode determining module is used for determining that the current test mode is a sampling front end detection mode aiming at the sampling front end of the battery pack according to the integrated sampling front end access sampling front end tool.
8. The system of claim 7, further comprising a switching module; the switching module is used for switching the operation mode into a sampling plate detection mode aiming at the sampling plate of the battery pack when the current test mode is the sampling plate detection mode, the power supply module supplies power to the sampling plate corresponding to the sampling plate detection mode and the sampling plate tool according to the switched sampling plate detection mode, the test execution module executes a preset test case for the sampling plate after the power supply module finishes supplying power, or, The power supply module is used for supplying power to the sampling front end and the sampling front end tool corresponding to the sampling front end detection mode according to the switched sampling front end detection mode, and the test execution module is used for executing a preset test case on the sampling front end after the power supply module finishes supplying power.
9. The system of claim 7, wherein the power supply module comprises a first power supply module and a second power supply module, and the test execution module comprises a first test execution module and a second test execution module; the first power supply module is used for carrying out first power supply on the sampling plate corresponding to the sampling plate detection mode and the sampling plate tool when the current test mode is the sampling plate detection mode aiming at the sampling plate of the battery pack; The first test execution module is used for executing a first test on the sampling board by a preset test case after the first power supply module finishes supplying power, or, The second power supply module is used for carrying out second power supply on the sampling front end corresponding to the sampling front end detection mode and the sampling front end tool when the current test mode is the sampling front end detection mode aiming at the sampling front end of the battery pack; And the second test execution module is used for executing a preset test case on the sampling front end to carry out a second test after the second power supply module finishes supplying power.
10. An electronic device, comprising: processor, and A memory having executable code stored thereon, which when executed by the processor, causes the processor to perform the method of any of claims 1-5.
11. A computer readable storage medium having stored thereon executable code which when executed by a processor of an electronic device causes the processor to perform the method of any of claims 1-5.

Description

Method and system for testing sampling front end in battery pack, electronic equipment and storage medium Technical Field The present application relates to the field of battery testing technologies, and in particular, to a method and a system for testing a sampling front end in a battery pack, an electronic device, and a storage medium. Background Currently, the power of a flying car is mainly from a power Battery system, and the core part of the power Battery system is a Battery management system (BMS, battery MANAGEMENT SYSTEM). In order to ensure the reliability of the battery management system battery sampling board function, the battery management system battery sampling board needs to be subjected to relevant tests before being assembled. In the related art, the front end sampling test tool scheme in the battery Pack includes a scheme of integrating CCS (Cells Contact System, integrated busbar) and a sampling board together in a C2P (Cell To Pack, cell-battery Pack). In the related art, for a battery pack adopting a C2P scheme, the integration of an FPC (Flexible Printed Circuit, a flexible circuit board) and a sampling plate in the front end of sampling needs to secondarily heat the sampling plate, so that the FPC and the sampling plate are reliably connected when soldering tin is solidified. But when adopting the C2P scheme test, only carry out visual detection and selective examination at CCS production line and battery integration production line to sampling board, can't guarantee the reliability of sampling board after the sampling board reheat in the FPC welding process, once the battery package integration assembly is accomplished the back and is found the problem again, lead to scrapping easily, extravagant material and production line ability, and hardly trace back the problem root cause. Disclosure of Invention In order to solve or partially solve the problems in the related art, the application provides a method, a system, electronic equipment and a storage medium for testing the sampling front end in a battery pack, which can detect the problems in advance, avoid scrapping of the sampling front end, avoid wasting materials and line production capacity, and accurately position the root cause of the problems. The first aspect of the present application provides a method for testing a sampling front end in a battery pack, comprising: determining a current test mode according to the access condition of a test object, wherein the test object at least comprises a sampling plate in a battery pack and an integrated sampling front end; Powering the test object corresponding to the current test mode according to the current test mode, and executing a preset test case on the test object to test after powering is completed; And outputting a test result. Preferably, the determining the current test mode according to the access condition of the test object includes: Determining the current test mode as a sampling plate detection mode aiming at the sampling plate of the battery pack according to the sampling plate access sampling plate tool, or, And according to the integrated sampling front end access sampling front end tool, determining the current test mode as a sampling front end detection mode aiming at the sampling front end of the battery pack. Preferably, the power supply for the test object corresponding to the current test mode according to the current test mode, and executing the preset test case for the test object after completing the power supply, includes: When the current test mode is a sampling plate detection mode aiming at the sampling plate of the battery pack, switching the operation mode into the sampling plate detection mode, supplying power to the sampling plate and the sampling plate tool corresponding to the sampling plate detection mode according to the switched sampling plate detection mode, executing a preset test case for the sampling plate after the power supply is completed, or, When the current test mode is a sampling front end detection mode aiming at the sampling front end of the battery pack, switching the operation mode into the sampling front end detection mode, supplying power to the sampling front end and a sampling front end tool corresponding to the sampling front end detection mode according to the switched sampling front end detection mode, and executing a preset test case for the sampling front end after the power supply is completed. Preferably, the power supply for the test object corresponding to the current test mode according to the current test mode, and executing the preset test case for the test object after completing the power supply, includes: when the current test mode is a sampling plate detection mode aiming at the sampling plate of the battery pack, the first power supply module is used for carrying out first power supply on the sampling plate corresponding to the sampling plate detection mode and the sampling plate tool, the first test executi