Matching test method and system for BMS alternating current charging coupler

Abstract

The invention relates to development and testing of BMSs, and discloses a matching test method and system for a BMS alternating current charging coupler. The matching test system comprises a temperature control module, a model simulation module, a communication module, a coupler module and a master computer. The matching test method comprises the steps of acquiring and storing corresponding relations between ambient temperatures of different models of charging piles and a preset charging current, separately inputting a temperature signal indicating a preset temperature, an identification signal indicating the model of the corresponding charging pile, an electronic interlocking signal and a handshaking signal into the BMS alternating current charging coupler, receiving a requested chargingcurrent fed back from the BMS alternating current charging coupler, and judging whether the BMS alternating current charging coupler can pass a matching test according to the corresponding relations.The matching test method and system are not limited by a whole vehicle and the real charging piles, and take into account the influence of the ambient temperatures on charging currents output by the charging piles, thereby improving the test efficiency and the accuracy of test results.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a matching test method and system for a BMS AC charging interface. Background technique [0002] At present, there are many types of AC charging piles in use on the market. The charging power and charging current output by different types of AC charging piles are different. In order to charge electric vehicles on different types of charging piles, they can be charged quickly and at the same time. To ensure charging safety, it is necessary to require that the AC charging port of the battery management system BMS of the electric vehicle can be matched with different types of charging piles. Whether the BMS AC charging port can match different types of charging piles needs to be tested and verified. [0003] The current method of testing whether the BMS AC charging port can match the charging pile is mainly: after the development of the BMS is completed, the BMS is insta...

AI Technical Summary

Problems solved by technology

Obviously, when the development of the whole vehicle has not been completed or there is no charging pile, the above matching test method cannot be carried out, which seriously affects the test development progress of the BMS. Unpacking the power battery pack or even dismantling the entire vehicle for rectification will cause a great waste of manpower and material resources

[0004] In addition, the charging current output by the charging pile is greatly affected by the ambient temperature. Even if there are some simple matching test devices or methods, the influence of the ambient temperature on the charging current is not considered, which greatly reduces the reliability of the matching test results.

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