摘要
目前,我国新能源汽车产业的蓬勃发展,行业对动力电池管理系统的要求日益提高。传统的电池荷电状态估算方法存在一定缺陷,而基于电化学阻抗谱的估算方法具有高精度、在线监测等优势。首先阐述了新能源汽车动力电池荷电状态估算的重要性,介绍了电化学阻抗谱的概念及特性,随后重点论述了基于电化学阻抗谱的新能源汽车动力电池荷电状态在线估算方法,为新能源汽车动力电池管理系统的优化提供了有力支撑。
With the vigorous development of China's new energy vehicle industry,the industry's requirements for battery management systems are increasing.Traditional battery SOC estimation methods have certain deficiencies,while the estimation method basedon electrochemical impedance spectroscopy(EIS)has advantages such as high accuracy and online monitoring.This paper first elucidates the importance of SOC estimation for new energy vehicle power batteries,introduces the concept and characteristics of electrochemical impedance spectroscopy,and then focuses on the online estimation method of sOC for new energy vehicle power batteriesbased on EIS,providing strong support for the optimization of battery management systems for new energy vehicles.
作者
潘海军
Pan Haijun(Guizhou Technical College of Mechanics and Electrics,Duyun 558000,China)
出处
《专用汽车》
2025年第8期42-44,共3页
Special Purpose Vehicle
关键词
新能源汽车
动力电池
荷电状态估算
New energy vehicles
Power batteries
State of charge estimation
