一种车载网关路由失效故障的排查与研究

Investigation and Research on a Routing Failure of Vehicle-mounted Gateway

车载网关是整车电子电气架构中的核心控制器,其主要功能包括路由功能、诊断功能及网络管理等。路由失败属于车载网关控制器可能出现的故障中最严重的一种。路由失败将导致目的网段中的控制器获取源网段信号失效。例如,在涉及到信号功能验证情况时,错误信号或无法获取到源网段的信号会使网关或其他相关控制器部分功能失效,此时会影响车辆正常功能,情况严重时会进入故障模式,并做出禁止车辆行驶的判断。

The vehicle-mounted gateway is the core controller in the vehicle's electrical and electronic architecture,and its main functions include routing functions,diagnostic functions,and network management.The routing failure is one of the most serious failures that may occur in the vehicle-mounted gateway controller.Failed routing will cause the controller in the destination network segment to fail to obtain the signal from the source network segment.For example,when it comes to signal function verification,wrong signals or failure to obtain signals from the source network segment will invalidate some functions of the gateway or other related controllers.At this time,it will affect the normal function of the vehicle.And make a judgment to prohibit the vehicle from driving.