【摘要】 针对目前唯一可以产业化的纯电动汽车使用的主要能源动力电池,设计开发了电池管理系统。系统以单片机为核心,采用分布式网络控制系统结构,可以实时检测动力电池的各种运行参数:电池SOC、总电压、总电流、单体模块电压、电池包内特征温度;可以根据电池状态进行故障诊断和报警,同时具有热管理功能等;系统参数通过PC进行标定,通过CAN总线与整车其他系统进行通信实现信息共享。系统已经在BK 6121EV纯电动公交客车上安装。实验室和实车试验结果表明:系统电池电压测量精度为1%满足要求,系统各个功能运行稳定、可靠。更多还原

【Abstract】 An advanced battery management system was developed for completely electric vehicles,the only one electric vehicles industrialize at present.The distributed control system structure based on a single chip computer effectively monitors various operating parameters of the power battery in real time such as the state of charge(SOC),total voltage,total current,single module voltage, and temperatures at specific points in the battery package.The system then checks the battery state,perform fault diagnostics and manage battery temperatures.The system uses computerized calibration and shares messages with other systems in the vehicle though the CAN communications system.Tests in a BK6121EV show that the battery voltage is measured to within 0.01 V and that the system is stable and reliable.更多还原