荣威EI5汽车高压不上电故障案例分析

Roewe EI5 Automobile High Voltage Failure Case Analysis

高压不上电是电动汽车的常见故障。故障的原因可能是多方面的,比如加速踏板位置传感器、高速CAN、驱动电机控制器、高压电池包、高压电池管理等都会引起高压不上电故障。以2019款荣威EI5纯电动汽车高压不上电故障为例,结合控制原理、电路图对高压不上电故障进行了系统分析,并给出了具体的检修方法和故障排除步骤。

High voltage is not powered on is a common fault of electric vehicles.The reasons for the failure may be many,such as accelerator pedal position sensor,high speed can,drive motor controller,high voltage battery pack,high voltage battery management,etc.all can cause high voltage failure.Taking 2019 Roewe EI5 pure electric vehicle high voltage power failure as an example,combined with the control principle and circuit diagram,the paper analyzes the high voltage non power failure systematically.The specific maintenance methods and troubleshooting steps are given.