某试验车型间歇性无法启动的问题分析

Analysis of the Intermittent Failure to Start a Certain Test Vehicle

某机械钥匙启动配置的试验车型有间歇性无法启动发动机的现象,该车型配备网关,因此车上相应控制器节点之间的CAN报文接收都通过网关转发功能来实现,在复现故障测试的过程中使用CANoe总线监控工具监控整车CAN总线网络及网关的报文转发状态,分析并找出故障原因。

The test model of a mechanical key start configuration has the phenomenon of intermittent failure to start the engine.This model is equipped with a gateway,so the CAN message reception between the corresponding controller nodes on the car is realized through the gateway forwarding function,and the fault is reproduced.During the test,the CANoe bus monitoring tool was used to monitor the message forwarding status of the vehicle’s CAN bus network and gateway,and the article analyzes and finds out the cause of the failure.