摘要
主要针对动力电池系统在不同温度下(45、 0、 25℃) SOC估算精度不一致的现象,设计了试验方案,统计了不同温度、不同剩余电量条件下的SOC估算误差情况,分析了温度、电池剩余电量对SOC估算误差的影响,结果表明:温度越低、剩余电量越少时SOC估算误差越大,为动力电池管理系统SOC估算方法的改进提供了一定的指导。
The test scheme is designed mainly for the phenomenon that the accuracy of the SOC estimation of the power battery system is inconsistent at different temperatures(45, 0, 25 ℃).The SOC estimation error is counted under different temperature and different residual capacity.And the influence of temperature and remaining capacity on SOC estimation error is analyzed. It is concluded that the lower the temperature and the remaining capacity is, the greater the SOC estimation error will be, which provides guidance for the improvement of the SOC estimation method of the power battery management system.
作者
吕晶晶
戚继先
郑昆
蔡国辉
董田
LV Jingjing;QI Jixian;ZHENG Kun;CAI Guohui;DONG tian(Wuhu CEPREI Information Industry Technology Research Institute,Wuhu 241000,China)
出处
《电子产品可靠性与环境试验》
2020年第S02期32-35,共4页
Electronic Product Reliability and Environmental Testing
关键词
温度
动力电池
电池管理系统
荷电状态估算
temperature
power battery
battery management system
SOC estimation
