新能源汽车动力电池可靠性分析及优化  

Analysis and Optimization of Power Battery Reliability for New Energy Vehicles

作　　者：杨梦华 Yang Menghua(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520)

机构地区：[1]青岛理工大学机械与汽车工程学院,青岛266520

出　　处：《汽车文摘》2023年第9期28-35,共8页Automotive Digest

摘　　要：为保证新能源汽车安全发展,针对其关键部件动力电池展开深入研究,对导致电池故障主要原因进行有效识别,针对性提出优化建议,提高其可靠性。首先,分析动力电池故障主要类别,结合16项国内现行标准规范,基于故障树分析法建立动力电池故障树;其次,基于层次分析法构建动力电池故障层次分析模型,通过专家调查法确定各指标权重;最后,根据计算结果对动力电池提出优化建议,为新能源汽车动力电池可靠性发展提供理论依据和指导建议。In order to ensure the safe development of New Energy Vehicle(NEV),an in-depth study is conducted on the power batteries to effectively identify the main causes of battery failure and put forward targeted suggestions.Firstly,the main categories of power battery failure are analyzed and a power battery fault tree is established based on the fault tree by combining 16 existing domestic standards.Secondly,based on the hierarchical analysis method,a power battery fault hierarchy analysis model is constructed and the weights of each index are determined by the expert survey method.Finally,the optimization suggestions for the power battery are made according to the calculation results.The article intends to provide theoretical basis and guidance suggestions for the development of power battery reliability design of new energy vehicles.

关 键 词：新能源汽车 动力电池 故障树分析法 层次分析法 可靠性 

分 类 号：U262[机械工程—车辆工程]