BMS slave controller testing system and method based on LabVIEW

Abstract

The invention discloses a BMS slave controller testing system and method based on LabVIEW. The testing system comprises a 18650-based battery module which is connected with a programmable DC power supply and a BMS slave controller, wherein the programmable DC power supply is used for charging and discharging the 18650-based battery module, and the BMS slave controller is connected with an upper computer based on LabVIEW. The upper computer based on the LabVIEW is connected with a programmable DC power supply. A battery pack is replaced by a 18650-based battery module for testing the BMS slavecontroller. The BMS slave controller testing system has the advantages that 18650-based battery module is small in capacity, electromagnetic interference performance is good, the testing environment can be flexibly adjusted, various fault states can be simulated, the man-machine interaction is facilitated, the convenience of the whole experiment operation is improved, and the operation of experimenters is greatly facilitated. The BMS slave controller testing system is very suitable for an electromagnetic interference test, an environment reliability test and a black box test on a BMS slave controller.

Description

technical field [0001] The invention relates to the technical field of pure electric vehicles, in particular to a LabVIEW-based BMS slave controller testing system and testing method. Background technique [0002] New energy vehicles are widely considered to be the main way to alleviate environmental pollution and the shortage of oil resources. Pure electric vehicles have made great progress in recent years and will maintain rapid growth in the next few years. With the development of pure electric vehicles, as the core power system of pure electric vehicles, the stability and safety performance of the BMS system cannot be ignored, and it is particularly important to test the stability and safety of the BMS controller. [0003] At present, the test of the BMS system is mainly to connect the BMS system with the battery pack, monitor the battery voltage, temperature and other information based on CAN communication, and test the stability and safety performance of the BMS by pro...

AI Technical Summary

Problems solved by technology

This test process has the following disadvantages: (1) The battery pack, high and low temperature box, charging and discharging equipment are expensive and occupy a large area; (2) The battery pack takes a long time to charge and discharge, and the test is not flexible; (3) This test The method does not have the ability to test faults, and it is difficult to simulate faults; (4) When a fault occurs, if the software is not mature enough, it may damage the battery pack and test equipment or even threaten the personal safety of testers

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