新能源汽车BMS热失控预警与防控技术研究

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中图分类号：U469.72 文献标识码：A 文章编号：1003-8639（2025）11-0021-0：

【Abstract】This article focuses on the early warning and prevention technology of thermal runaway in the battery managementsystemofnew energyvehicles.Firstly，analyze thethermal runaway mechanism of lithium-ionbateries， including thechainreactiontrigeredbymechanical，electricalandthermalabuse，andexploretheinfluenceofmaterials， structure，charge anddischarge strategiesandenvironmental factors onsafety.Secondly，sort out the evolution path of batery management system thermalrunaway earlywarning technology fromthreshold model toartificial inteligencedriven，and proposeanoptimizationschemeof multi-parameter fusionandmulti-physicalfieldcoupling; Finaly，through caseanalysis，preventionandcontrolstrategiesareproposedfromfouraspects：design，balance，thermalanagementand operation and maintenance.It is pointed out that sensor accuracy，algorithm robustness and standard uniformity are the technical bottlenecks.

【Key words】new energy vehicles；BMS；thermal runaway warning；lithium-ion battery safety；multi-parameter usion monitoring

0 引言

据应急管理部数据，2023年国内新能源汽车火灾事故达1.8万起，其中 63% 与电池系统失效相关。（剩余4838字）