SOC Estimation on PNGV Model and Hybrid Electric Vehicle

Author:

Xu Jun Ling1,Li Li Wei1,Jiang An Na1

Affiliation:

1. Qingdao University

Abstract

Based on PNGV (the Partnership for a New Generation of Vehicles) equivalent battery model, establishing state-space equations, discrediting them and using UKF (Unsvented Kalman Filtering) arithmetic to achieve an exact SOC estimation under the non-linear condition. According to simulation experiment, UKF estimation just has an error rate of less than 6 percent, and has a quite high use value.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference5 articles.

1. Wang Lifang, Hu Yunfei, Liao Chenglin, Research on SOC estimation of NIMH batteries in hybrid electric vehicles based on improved Thevenin model, Chinese High Technology Letters, , 2008, 18(9), pp.948-952.

2. James H A, Alfred T, Barry W J. A battery state of charge indicator for electric wheelchairs [C]/ IEEE Transactions on Industrial Electronics (SO278-0046). USA: IEEE, 1990, (10).

3. Yang Yan, Taofen Tang, Electric vehicle PNGV equivalent circuit model and the estimation method of SOC for lithium batteries[J] . journal of system simulation, 2012, 24(12), p.938 – 941.

4. Battelle Energy Alliance. Battery Test Manual for Plug-In Hybrid Electric Vehicles, revision 0[M]. USA: US Department of Energy National Laboratory, 2008, (3), pp.22-29.

5. Minxin Zheng. Dynamic Model for Characteristics of Li-ion Battery on electric vehicle [C]/ Proceedings of ICIEA 2009. May, 2009, Xi'an, China. New York, USA: IEEE , 2009, pp.2967-2870.

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