Li-ion battery parameter estimation for state of charge

Battery state of charge (SOC) is a critical parameter for the control of propulsion systems in plug-in hybrid electric vehicles (PHEV) and electric vehicles (EV). As SOC is not measureable during vehicle operation, an onboard adaptive algorithm is developed in this paper. The algorithm estimates six...

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Bibliographic Details
Published inProceedings of the 2011 American Control Conference pp. 941 - 946
Main Authors Xidong Tang, Xiaofeng Mao, Jian Lin, Koch, Brian
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Batteries
Battery charge measurement
Estimation
Hysteresis
Integrated circuit modeling
Parameter estimation
System-on-a-chip
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ISBN1457700808
9781457700804
ISSN0743-1619
DOI10.1109/ACC.2011.5990963

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Summary:Battery state of charge (SOC) is a critical parameter for the control of propulsion systems in plug-in hybrid electric vehicles (PHEV) and electric vehicles (EV). As SOC is not measureable during vehicle operation, an onboard adaptive algorithm is developed in this paper. The algorithm estimates six electrical parameters for Li-ion batteries and provides a reliable SOC based on one of the estimated battery parameters, i.e. open circuit voltage (OCV). Simulation and vehicle validation results show good robustness and adaptation of the algorithm with high computational efficiency and low implementation cost.
ISBN:1457700808
9781457700804
ISSN:0743-1619
DOI:10.1109/ACC.2011.5990963