随着新能源汽车产业的发展，车载动力电池管理系统（ BMS）的可靠性是直接影响电动汽车可靠运营的关键因素之一。为此开发一套BMS测试系统，实现对车载主从分布式BMS信息的监控及系统测试功能，为BMS的测试及故障诊断提供便捷的途径。此测试系统是上位机与BMS通过CAN通信进行信息交互，达到测试及监控的目的。本文重点描述BMS测试系统的上位机与BMS控制器CAN数据通信的实现过程及方法。%With the development of new energy automotive industry , the reliability of vehicle battery management system (BMS) is one of the key factors to ensure electric cars work reliable .We develop a BMS testing system which provides convenient testing method for testing and fault diagnosis of BMS .It achieves the functions of monitoring and testing the distributed BMS .This test system achieves the testing and monitoring between the upper machine and BMS by CAN communication to exchange the informa -tion.This paper focuses on the implementation method of CAN data communication between the upper machine and the BMS con -troller.
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