汽车电器系统线束故障检测与防护措施研究

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中图分类号：U463.6 文献标识码：B 文章编号：1003-8639（2026）03-0182-03

ResearchonWiringHarnessFaultDetectionandProtection Measures for Automotive Electrical Systems

XuLi

（BeihaiVocational College，Beihai 536Ooo， China）

【Abstract】The modern automotive industry is at a critical node in the transition from mechanical drive to softwaredefined vehicle （SDV），and the number and types of in-vehicle electrical devices are growing exponentially，making automotive wiring harnessystems oneofthemostcostly，heavy，andcomplexcomponents oftheentire vehiclewiththe mostcomplex wiring.Asthe hubof thevehicle electrical system，the wiring harnessisresponsibleforthetransmission of low-voltageand high-voltage powersupply，aswellasthedata flowof high-speedcommunication networks.However， the wiring harnesses are usually instaled inside the vehicle body's shet metal or beneath the chassis.Their working environmentisexremelyharsh，constantlysbjectedtomechanical wear，chemicalcorosion，thermalging，andssive curentoverload.Therefore，thisstudywilldeeplyexploretheautomotiveelectricalsystem wiring harnessfaultdetection and protection measures，and explore the wiring harness systemsafety guaranteesystemadapted to the highreliabilityof intelligent networked vehicles.

【Key words】 automotive wiring harness; fault detection; failure mechanism;circuit protection

0 引言

随着汽车“新四化”（电动化、网联化、智能化、共享化）进程的加快，汽车电子电气架构正发生颠覆性的变革，线束作为传输电能和信号的神经血管，其拓扑结构越来越复杂，承载负荷也越来越大。（剩余3626字）