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An Approach to State of Charge Estimation of Lithium-Ion Batteries Based on Recurrent Neural Networks with Gated Recurrent Unit

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Li, Chaoran, Xiao, Fei, Fan, Yaxiang·2019·Energies

Abstract

State of charge (SOC) represents the amount of electricity stored and is calculated and used by battery management systems (BMSs). However, SOC cannot be observed directly, and SOC estimation is a challenging task due to the battery’s nonlinear characteristics when operating in complex conditions. In this paper, based on the new advanced deep learning techniques, a SOC estimation approach for Lithium-ion batteries using a recurrent neural network with gated recurrent unit (GRU-RNN) is introduced where observable variables such as voltage, current, and temperature are directly mapped to SOC estimation. The proposed technique requires no model or knowledge of the battery’s internal parameters and is able to estimate SOC at various temperatures by using a single set of self-learned network parameters. The proposed method is evaluated on two public datasets of vehicle drive cycles and another high rate pulse discharge condition dataset with mean absolute errors (MAEs) of 0.86%, 1.75%, and 1.05%. Experiment results show that the proposed method is accurate and robust.

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Metadata

Authors
Li, C., Xiao, F., & Fan, Y.
Venue
Energies
Publisher
MDPI AG
Published
2019-04-26
Volume
12
Issue
9
Pages
1592
ISSN
1996-1073 (ISSN-L)
OpenAlex
W2941475335
Cited by
178
References
6
FWCI
8.81
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: An Approach to State of Charge Estimation of Lithium-Ion Batteries Based on Recurrent Neural Networks with Gated Recurrent Unit. https://app.cochat.ai/papers/10.3390/en12091592
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Li, C., Xiao, F., & Fan, Y. (2019). An Approach to State of Charge Estimation of Lithium-Ion Batteries Based on Recurrent Neural Networks with Gated Recurrent Unit. Energies. https://doi.org/10.3390/en12091592

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