电测与仪表Issue(24)：76-84,9.
电动汽车动力电池荷电状态估计方法探讨
Discussion on state of charge estimation methods for electric vehicle power batteries
摘要
Abstract
The accurate estimation of state of charge ( SOC) is an important content in electric vehicle battery man-agement, which is also significant for extending the battery lifetime and improving the electric vehicle performance. Many studies are performed on SOC estimation methods by researchers all over the world, and lots of estimation meth-ods are proposed.In this paper, the definition of battery SOC and its main influencing factors are introduced.Accord-ing to the characteristics of estimation methods for battery SOC, the estimation methods are summarized and recom-mended based on off-line and on-line methods.The characteristics and practical effects of each method are compared. In order to give reference to the further research about SOC estimation methods for power battery in future, two poten-tial development directions of battery SOC estimation method are prospected, which are the nonlinear filtering method based on the cell model and the intelligent method with self-learning ability.关键词
电动汽车/动力电池/荷电状态SOC(state of charge)/估计方法Key words
electric vehicle/power battery/state of charge/estimation method分类
信息技术与安全科学引用本文复制引用
曾求勇,张鑫,范兴明..电动汽车动力电池荷电状态估计方法探讨[J].电测与仪表,2014,(24):76-84,9.基金项目
国家自然科学基金（51067002；51167004）；广西科技攻关重大专项（桂科重1348003－8）；广西制造系统与先进制造技术重点实验室主任课题（13－051－09－002Z）。 （）
