State-of-health Monitoring of Lithium-ion Batteries by Identification Technology Based on Nonlinear Equivalent Circuit Model
A nonlinear equivalent circuit model for battery of electric vehicle is presented,taking into account the nonlinear effects of State of Charge,Capacity and other battery internal parameters.The emphasis of this paper is to calculate the battery capacity using two different methods.Battery test and data processing for model parameter identification uses EKF(Extended Kalman Filter)technolo-gy are discussed.Compared with the capacity calculated using a single method alone,convergence speed and accuracy are improved.The method mentioned in this paper has been used to estimate the accuracy of the SOH within 5%by the vehicle reliability test.
state of health extended Kalman filter battery model BMS
Zheng Ying Yao Zhenhui Hong Munan Liu Bo Yang Huiqian Wen Jin Cao Hongquan
Chongqing Changan Automobile Co.,Ltd.
国内会议
上海
英文
336-339
2017-10-24（万方平台首次上网日期，不代表论文的发表时间）