贵州山地场景下新能源汽车电器系统设计与实践

打开文本图片集

中图分类号：U463.6 文献标识码：A 文章编号：1003-8639（2026）01-0032-03

Design and Practice of New Energy Vehicle Electrical System in Guizhou Mountainous Scene

Yuan Caiqing，Yang Xiuchun （Guizhou Vocational College of Economics and Business，Duyun 558O22，China）

【Abstract】In view of the problems of high risk of high voltage insulation failure，low control accuracy of battery managementsystem （BMS）andpoor eficiencyoffault diagnosis intheelectrical systemofnewenergy vehiclesunder the conditions of rainy，high humidityandlow temperature bumpy in Guizhoumountainous areas，combined with the needs ofregional industrialdevelopment，thespecialdesigniscariedoutfromthedimensionsofweatherresistanceintegration of high voltage electrical system，multi-conditionadaptationof BMS，vehicle network and faultdiagnosis optimization. Throughtheoptimizationofthe IP67sealstructureof thehigh-voltagedistributionbox，theinnovationoftheBMSadaptive equalizationcontrol algorithm，theanti-interferencedesignoftheCANFDbus，andthethree-levelverificationsystemof "virtualsimulation-realvehicletest-sceneverification"，thehigh-voltagefaultrateoftheelectricalsystemisreduced from thetraditional designofO.8 times/km toO.12 times/km，theequalizationaccuracyofthe BMScell is increased to ±5mV ， and the fault diagnosis time is shortened from 120min to 42min

【Key words】new energy vehicles；high voltage electrical system；mountain environment adaptation；fault diagnosis

0 引言

在“双碳”目标与乡村振兴战略驱动下，贵州省新能源汽车产业快速发展，2024年底保有量达35万辆，其中山地乡村场景应用占比 58% 。（剩余4538字）