汽车工程 ›› 2021, Vol. 43 ›› Issue (11): 1720-1729.doi: 10.19562/j.chinasae.qcgc.2021.11.018

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锂离子电池状态估计机器学习方法综述

谢奕展,程夕明()   

  1. 北京理工大学机械与车辆学院,电动车辆国家工程试验室,北京 100081
  • 收稿日期:2021-05-24 修回日期:2021-07-01 出版日期:2021-11-25 发布日期:2021-11-22
  • 通讯作者: 程夕明 E-mail:cxm2004@bit.edu.com
  • 基金资助:
    国家重点研发计划(2018YFB0106104)

Review of State Estimation of Lithium-ion Battery with Machine Learning

Yizhan Xie,Ximing Cheng()   

  1. School of Mechanical Engineering,National Engineering Lab for Electric Vehicles,Beijing Institute of Technology,Beijing  100081
  • Received:2021-05-24 Revised:2021-07-01 Online:2021-11-25 Published:2021-11-22
  • Contact: Ximing Cheng E-mail:cxm2004@bit.edu.com

摘要:

本文旨在综述机器学习方法在锂离子电池状态(包括荷电状态、健康状态和剩余可用寿命)估计领域的研究进展。首先,阐述机器学习方法在电池状态估计中的应用现状。然后,归纳电池状态估计机器学习方法的5个具体实施环节,即数据准备、模型选择与评价、超参数确定、数据预处理和模型训练,并提出了融合精度、实施成本和鲁棒性的学习算法评价方法。最后指出超参数确定方法仍存在的场景适应性问题,并建议建立多区域、跨季节、多模式和长时间的车用电池工况数据库,促进电池状态估计机器学习算法的实用性和普适性等方面的研究。

关键词: 锂离子电池, 机器学习, 荷电状态, 健康状态, 剩余寿命

Abstract:

This paper aims to give a comprehensive review on the research progress in the field of the estimation of the states of lithium-ion battery, including the state of charge (SOC), state of health (SOH) and residual useful life (RUL). Firstly, the application status of machine learning method to the estimation of battery states are expounded. Then, five specific implemental links of machine learning methods for battery state estimation are summarized, including data preparation, model selection and evaluation, hyperparameter determination, data preprocessing and model training, and an evaluation method of learning algorithms is proposed in terms of fusion accuracy, implementation cost and robustness. Finally, the problem of scene adaptability in determining hyperparameters is pointed out, with a suggestion put forward: establishing multi-regional, cross-seasonal, multi-mode and long-term driving cycle database of traction battery, so as to promote the research on the practicability and universality of machine learning algorithms for battery state estimation.

Key words: lithium-ion battery, machine learning, SOC, SOH, RUL