The electronic control device includes a microcomputer, a wake-up circuit, and a relay switch of a self-holding power supply relay, the wake-up circuit operates the relay switch in response to a wake-up signal from the OTA electronic control device, and starts power supply to the microcomputer. Moreover, during shutdown processing of the microcomputer, the microcomputer outputs a stop command to the relay switch before outputting the stop command to the wake-up circuit, thereby diagnosing fixation of an output terminal (INH terminal) of the wake-up circuit based on an output signal from the wake-up circuit.
本发明的电子控制装置具备微型计算机、唤醒电路以及自保持电源继电器的继电器开关,唤醒电路响应于来自OTA电子控制装置的唤醒信号而使继电器开关工作,开始向微型计算机供电而进行启动。并且,在微型计算机的关机处理中,微型计算机在向唤醒电路输出停止指令之前,向继电器开关输出停止指令,从而基于来自唤醒电路的输出信号来诊断唤醒电路的输出端子(INH端子)的固着。
Electronic control device and method for diagnosing wake-up circuit
电子控制装置以及唤醒电路的诊断方法
13.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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