电池管理系统(BMS)监测动力电池的各种状态,具有荷电状态(SOC)估计、电池均衡、热管理和CAN通讯等功能,是电动汽车关键零部件之一。在此回顾了BMS的国内外研究现状并且论述了其总体结构、动力电池SOC估计方法、电池均衡技术和电池热管理技术。最后,展望了BMS未来发展趋势。
Battery management system (BMS) monitors various states of power battery in real time, has functions of state of charge(SOC) estimation, battery equalization, thermal management, CAN communication and so on, and serves as one of the key components and parts of the electric vehicle.The present researches situation of home and abroad is reviewed and the general structure of BMS, SOC estimation methods of power battery, battery equalization technology and battery thermal management technology are discussed.Finally,the future development trend of BMS is prospected.