某车型车载远程通信终端节点丢失问题分析

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中图分类号：U463.67 文献标识码：B 文章编号：1003-8639（2025）08-0177-03

【Abstract】This articleaims at the fault problemof node loss in the vehicle-mounted remotecommunication terminal，andusesthefishbonediagramanalysismethodtoconductinvestigationsfromthedimensionsofmaterials， personnel，equipment，and environment.By testing theperformance of the eMMC memory，troubleshoting factors such as prolonged poweroutages，personnel operations，hightemperatures inreflow soldering，andabnormal poweroutages，it was ultimatelydeterminedthattherealcausewasabnormalpoweroutages，hichled tothelossofdataintheeMMCpartition andsubsequentlycaused the mounting failure.Basedonthis，optimization measuresare proposed from the levelsof prevention，hardware，softwareand system，toprovidereferencesforthedevelopmentofautomotivecontrollersandthe troubleshootingofafter-sales faults.

【Key words】 node loss；file system；fishbone diagram analysis method； T-Box

0 引言

随着用户对汽车使用需求的不断增长，近年来车辆上的控制器数量迅速增加。（剩余3887字）