比亚迪新能源公交车电机控制器欠压诊断维修方案.pdf

题目：比亚迪新能源公交车电机控制器欠压诊断维修方案

目录

1.车辆信息.........................................................................................................................1
2.1车辆信息................................................................................................................1
2.2故障现象................................................................................................................1
2.3故障确认................................................................................................................1
2.电机控制器的概念与作用.............................................................................................1
2.1电机控制器的作用................................................................................................1
3.维修工作要求.................................................................................................................1
3.1基本要求................................................................................................................1
3.2操作前要求............................................................................................................2
3.3操作中要求............................................................................................................2
3.4操作后要求............................................................................................................2
4.故障检测排查与实施.....................................................................................................2
4.1诊断维修流程........................................................................................................2
4.2故障信息查看........................................................................................................2
4.3断电........................................................................................................................3
4.4用万用表测量确认故障........................................................................................4
4.5拆卸控制器固定螺丝.......................................................................