2019款比亚迪秦EV故障诊断流程与排故思路

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中图分类号：U463.6 文献标识码：B 文章编号：1003-8639（2025）06-0171-03

2019BYDQin EV Fault Diagnosis Processand TroubleshootingIdeas

Zhang Huan1，Sun Hongliang²

（1.School of Automotive Engineering，Shandong Yellow River Water Conservancy Senior Technical School，Jinan 250220，China；2.School of Automotive Engineering，Jinan Polytechnicof Engineering，Jinan 2502O0，China）

【Abstract】This paper starts with introducing the research results of domestic scholars in the field of fault diagnosis andelimination of new energyvehicles，and takes 2O19 BYDQinEVas the specificresearch objectto deeplyanalyze thediagnosisand elimination methodsofcommon typicalfaultssuchasfailure to turnonlow-voltageelectricity，failure toturnonhigh-voltageelectricity，andfailure tochargenormaly.Throughseveralactualfaultcases，asetofeffective diagnosis processissummarized：first，carefullyobserve thefault phenomenon；Secondly，combinedwith thecircuit diagram，thefaultcausesareanalyzed deply.Finall，thefault pointandfaulttypeareaccuratelyidentifiedwith the help ofspecific detectionsteps.Thediagnosticprocess and troubleshoting ideasare feasible，whichisof great significance to promote the professional development of the new energy vehicle maintenance industry.

【Key Words】 new energy vehicles；BYD Qin EV；fault diagnosis；troubleshooting

0 引言

随着新能源汽车技术的发展，国内外众多学者投身于新能源汽车故障诊断与排除方法的研究。（剩余3397字）