Review of sensor fault diagnosis and fault-tolerant control techniques of lithium-ion batteries for electric vehicles  

作　　者：Yang Zhao Limin Geng Shiyu Shan Zeyu Du Xunquan Hu Xiaolong Wei 

机构地区：[1]Shaanxi Key Laboratory of New Transportation Energy and Automotive Energy Saving,School of Energy and Electrical Engineering,Chang'an University,Xi'an 710064,China [2]No.203 Research Institute of Nuclear Industry,Xianyang 712099,China

出　　处：《Journal of Traffic and Transportation Engineering(English Edition)》2024年第6期1447-1466,共20页交通运输工程学报(英文版)

基　　金：funded by the Key Industrial Chain Technology Research Program of Xi’an(24ZDCYJSGG0048);the Key Research and Development Program of Xianyang(L2023-ZDYF-SF-077);the Fundamental Research Funds for the Central Universities in Chang'an University(300102384201).

摘　　要：Batterymanagement systems(BMSs)are essential in ensuring the safe and stable operation of lithium-ion batteries(LIBs)in electric vehicles(EVs).Accurate sensor signals,particularly voltage,current,and temperature sensor signals,are essential for a BMS to performfunctions such as state estimation,balance control,and fault diagnosis.The smooth operation of a BMS depends primarily on sensor signals,which provide current,voltage,and temperature information to maintain the battery pack in a safe running state.However,sensor failures and inaccurate measurement data can easily occur because of external interference and complex operating conditions.Therefore,an investigation into the faultdiagnosis of battery sensors and fault-tolerant control(FTC)is necessary to ensure the normal operation of a BMS.This paper analyzes themodes of sensor faults,fault diagnosismethods,and fault-tolerant control techniques.First,the differentmodes of sensor faults are analyzed,andmathematical expressions for these faults are provided.Second,diagnostic methods for sensor faults based on models,signal processing,and data-drivenmethods are analyzed in detail.Finally,FTC techniques are introduced to ensure stable sensor operation.Based on an analysis of the research status of sensor fault diagnosis,a new development direction for sensor fault diagnosis is proposed.

关 键 词：Lithium-ion batteries Battery management system Sensor faults diagnosis Fault tolerance control 

分 类 号：U472[机械工程—车辆工程]