智能网联汽车车载以太网诊断方法研究

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中图分类号：U463.6 文献标识码：A 文章编号：1003-8639（2025）06-0068-04

Research on Diagnosis Methodsfor In-vehicle Ethernetin Intelligent Connected Vehicles

Lv Xu

（Shanxi Vocational University of Engineering and Technology，Jinzhong O3O619，China）

【Abstract】With the rapid development of inteligent connectedvehicle technology，in-vehicleethernet has been widelyusedininteligentconnectedvehiclesduetoitshightransmissionrate.Thisarticlestudiestheworkingprinciple andtopological structureof vehicle-mountedethernet，andconductsan in-depthanalysisof itsfault diagnosis methods toimprovemaintenanceeffciency.Firstly，theapplicationoftheOSIseven-layermodelinvehicleethernetis introduced.Then，thestartopologystructureof ethernetanditsdiferences fromthetraditionalCANbusarediscussed. Next，thecommonfaultsof vehicleethernetareanalyzedandthe corresponding diagnosticmethodsareproposed. Through theanalysis of actual cases，itis expectedtoprovide guidanceforthefault diagnosisofon-boardethermet in intelligent connected vehicles.

【Key words】inteligent connected vehicle；vehicle-mounted；ethernet；topological structure；fault diagnosis

随着智能网联汽车技术的快速发展，激光雷达、高分辨率摄像头等传感器与自动驾驶计算平台间数据传输量急剧增长；车联网技术兴起，信息娱乐系统、自动驾驶计算平台和LTE路由器的数据传输量也极为庞大。（剩余4647字）