一种电动汽车电池管理系统的设计

A Design of Battery-management System for Electric Vehicles

电池监控对于电动汽车是极其重要的,因为汽车的操控、安全甚至是乘客的生命都取决于电池系统。电池管理系统的主要功能是检查并控制电池在指定的安全状态下工作。文中设计了一个典型的BMS,画出了其框图,并且对各个模块的功能进行了描述和分析,其中剩余电量估计和电池组的均衡是难点,也是现阶段研究的热点。此系统还可以进行进一步的仿真和实验。

Battery monitoring is vital for most electric vehicles （EVs） because the operation, safety and even the life of the passenger depends on the battery system. The major function of the battery-management system （BMS） is to check and control the status of battery within their specified safe operating conditions. In this paper, a typical BMS block diagram has been proposed, and the function of every block is detailed. The difficulty lies in the SOC estimation and the battery pack equalization, which are also the hot points for research. Further simulation and experimentation are to be expected in this system.