电动车辆动力电池安全预警策略研究综述

Review on Power Battery Safety Warning Strategy in Electric Vehicles

动力电池安全问题已经成为制约电动车辆发展的关键要素。准确及时的电池安全预警可以保障乘员生命财产安全以及提升电动车辆安全水平。本文对电动车辆电池安全预警策略进行了全面综述。首先,综述了电池安全状态的定义,并提出了本综述框架;之后,详细梳理了电池安全特征与安全影响因素分析、电池建模方法、电池安全风险评估/预测方法,总结了各类方法的优缺点;最后,总结了目前的进展与不足,提出了电动车辆动力电池安全预警技术发展趋势,并阐述了新型传感器技术、多因素融合的电池安全预警方法和“端-边-云”融合的电池安全预警体系。本综述为电动车辆动力电池安全预警策略的进一步研究提供参考。

Battery safety has become an important issue restricting the development of electric vehicles.Ac⁃curate and timely battery safety warning can ensure the safety of occupants′life and property and improve the safety level of electric vehicles.A comprehensive review on the battery safety warning strategies in electric vehicles is con⁃ducted in this paper.Firstly,the definition of battery safety state is reviewed,and the framework of this review is proposed.Then,the battery safety characteristics and safety influencing factors analysis,battery-modeling meth⁃ods,battery safety risk assessment/prediction methods are reviewed in detail.The advantages and disadvantages of different methods are summarized.Finally,the achievements and deficiencies of existing researches are summa⁃rized,and the development trend of battery safety warning technology in electric vehicle is proposed,including the new sensor technology,multi-factor integrated battery safety warning method and"terminal-side-cloud"battery safety warning system.This review provides a reference for further research on the safety warning strategy of electric vehicle battery.