Provided is a power supply breaker circuit diagnosing technique capable of accurately detecting functional failure of a power supply relay of an electronic control device for a vehicular automatic transmission, and capable of reliable transition to a fail-safe state, without requiring a change in the internal configuration of the current electronic control device, and with a minimum of system modification. By utilizing a network communication channel such as a CAN implemented on an electronic control device (ATCU) for a vehicular automatic transmission, and using another electronic control device as an ATCU monitor device, the other electronic control device which is on the monitoring side controls a breaker circuit of the ATCU. The other electronic control device on the monitoring side breaks the breaker circuit of the ATCU for a certain period, and makes a diagnosis by detecting communication loss from the ATCU.


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    Title :

    VEHICLE-MOUNTED CONTROL DEVICE OR VEHICLE-MOUNTED CONTROL SYSTEM


    Additional title:

    FAHRZEUGMONTIERTE STEUERUNGSVORRICHTUNG ODER FAHRZEUGMONTIERTES STEUERUNGSSYSTEM
    DISPOSITIF DE COMMANDE MONTÉ DANS UN VÉHICULE OU SYSTÈME DE COMMANDE MONTÉ DANS UN VÉHICULE


    Contributors:
    OKUBO SATORU (author) / MASUDA KENJI (author)

    Publication date :

    2019-03-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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