纯电动汽车锂离子电池管理系统关键技术现状分析

Analysis of Key Technology Current Status of Li-ion Battery Management System for Pure Electric Vehicle

纯电动汽车的续驶里程一直是阻碍其普及的瓶颈问题之一,而电池管理系统(Battery Management System,BMS)作为整车电控系统的一部分,是延长纯电动汽车续驶里程、降低维护成本、增加电池使用寿命的关键。电池能量管理系统、热管理系统、软件电池组模块(Battery Pack Module,BPM)、电池组安全保护系统作为BMS的四大关键技术,在很大程度上决定了BMS实现其功能的优劣程度。对BMS总体结构及四大关键技术的研究现状进行了分析,展望了纯电动汽车BMS未来的发展趋势。

The driving range of pure electric vehicle has always been one of the bottlenecks hindering its popularity, and the battery management system(BMS), as a part of the electronic control system, is the key to extend the driving mileage of pure electric vehicle, reduce its maintenance costs and increase the battery service life. As the four key technologies of BMS, battery energy management system, thermal management system, software battery pack module and battery safety protection system, to a great extent, determine the performance of BMS. The structure of BMS and status of the four key technologies were analyzed. Finally, the future development trend of BMS was prospected.