点击次数：

所属单位：自动化学院

发表刊物：ENERGIES

关键字：lithium-ion battery operating scenario equivalent circuit modeling parameter estimation

摘要：This paper presents an improved battery parameter estimation method based on typical operating scenarios in hybrid electric vehicles and pure electric vehicles. Compared with the conventional estimation methods, the proposed method takes both the constant-current charging and the dynamic driving scenarios into account, and two separate sets of model parameters are estimated through different parts of the pulse-rest test. The model parameters for the constant-charging scenario are estimated from the data in the pulse-charging periods, while the model parameters for the dynamic driving scenario are estimated from the data in the rest periods, and the length of the fitted dataset is determined by the spectrum analysis of the load current. In addition, the unsaturated phenomenon caused by the long-term resistor-capacitor (RC) network is analyzed, and the initial voltage expressions of the RC networks in the fitting functions are improved to ensure a higher model fidelity. Simulation and experiment results validated the feasibility of the developed estimation method.

ISSN号：1996-1073

是否译文：否

发表时间：2017-01-01

合写作者：Yang, Jufeng,Xia, Bing,Shang, Yunlong,Mi, Chris

通讯作者：黄文新,Mi, Chris,黄文新