期刊
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
卷 15, 期 5, 页码 1308-1317出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cnsns.2009.05.067
关键词
Fractional systems; System identification; Lead-acid batteries; Vehicle cranking
类别
资金
- PSA Peugeot Citroen
With EV and HEV developments. battery monitoring systems have to meet the new requirements of car industry. This paper deals with one of them, the battery ability to start a vehicle, also called battery crankability. A fractional order model obtained by system identification is used to estimate the crankability of lead-acid batteries. Fractional order modelling permits an accurate simulation of the battery electrical behaviour with a low number of parameters. It is demonstrated that battery available power is correlated to the battery crankability and its resistance. Moreover, the high-frequency gain of the fractional model can be used to evaluate the battery resistance. Then, a battery crankability estimator using the battery resistance is proposed. Finally, this technique is validated with various battery experimental data measured on test rigs and vehicles. (C) 2009 Elsevier B.V. All rights reserved.
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