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Cited by 534

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The Co-estimation of State of Charge, State of Health, and State of Function for Lithium-Ion Batteries in Electric Vehicles

Shen, Ping, Ouyang, Minggao, Lu, Languang, Li, Jianqiu, Feng, Xuning·2018·IEEE Transactions on Vehicular Technology

Abstract

This paper proposes a co-estimation scheme of state of charge (SOC), state of health (SOH), and state of function (SOF) for lithium-ion batteries in electric vehicles. The co-estimation denotes that the SOC, SOH, and SOF are estimated simultaneously in real-time application. The model-based SOC estimation is fulfilled by the extended Kalman filter. The battery parameters related with the battery SOH and SOF are online identified using the recursive least square algorithm with a forgetting factor. The capacity and the maximum available output power are then estimated based on the identified parameters. The online update of the capacity and correlated parameters help improve the accuracy of the state estimation but with limited increase in the computation load, by making good use of the correlations among the states. The co-estimation scheme is validated in a real battery management system with good real-time performance and convincible estimation accuracy.

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Research works printed but not linked: 28

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Metadata

Authors
Shen, P., Ouyang, M., Lu, L., Li, J., & Feng, X.
Venue
IEEE Transactions on Vehicular Technology
Published
2018-01
Volume
67
Issue
1
Pages
92-103
ISSN
  • 0018-9545 (ISSN-L)
  • 1939-9359
OpenAlex
W2755729630
Cited by
534
References
7
FWCI
22.26
Type
journal article
Language
en
Open access
closed
Funders
  • National Natural Science Foundation of China (U1564205)
  • Ministry of Science and Technology of China (2016YFE0102200)

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CoChat. (2026). Citation check: The Co-estimation of State of Charge, State of Health, and State of Function for Lithium-Ion Batteries in Electric Vehicles. https://app.cochat.ai/papers/10.1109/tvt.2017.2751613
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Shen, P., Ouyang, M., Lu, L., Li, J., & Feng, X. (2018). The Co-estimation of State of Charge, State of Health, and State of Function for Lithium-Ion Batteries in Electric Vehicles. IEEE Transactions on Vehicular Technology. https://doi.org/10.1109/tvt.2017.2751613

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