诊断技术在新能源汽车研发中的应用与创新

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中图分类号：U469.72 文献标识码：A 文章编号：1003-8639（2025）07-0019-04

ApplicationandInnovationofDiagnostic TechnologyintheResearch andDevelopmentofNewEnergyVehicles

Qiu Lin

（Gac Aion New Energy Automobile Co.，Ltd.，Guangzhou 5114Oo，Chinε

【Abstract】With the rapid development of intelligence and networking，thenumber and complexity of electronic andelectrical controlunits（ECUs）innew energyvehicles havemultiplied.ItisparticularlyimportantthatECU can quickly findthecause incaseoffailure.Diagnosis technology isaspecific method toconfirm thecause of vehicle ECU fault.Thispapertakes diagnosistechnologyastheresearchobject.Firstly，thedevelopmentofUDSprotocol for automotivediagnosisisintroduced，andthecontentofUDSprotocolisclarified.Secondly，itexplainshowtousethe diagnosticUDSprotocolforthedevelopmentanddesignofAutomotiveECU，andfurtherexplainshowtomeet the requirementsof vehicle factoryoff-lineelectrical inspection，after-salesservice，software upgradeandotherapplication scenarios.Finall，thenewdevelopmentof diagnosistechnologyinautomotiveremoteserviceisprospected.Through this design，wecan fuly grasp theapplyof diagnosis technologyin theautomotivedesignand development，and play a positive role inimproving ECU fault diagnosisand safetyperformance.

【Key words】UDS diagnostic protocol；diagnostic techniques；factoryofline diagnosis；after sales service；fault diagnosis；intellectualization

1车辆诊断USD协议发展介绍

从20世纪80年代和90年代开始，汽车制造商开始引入车载自诊断（ 0n -BoardDiagnostics，OBD）系统，用于监测和诊断车辆的运行状况。（剩余5579字）