To provide a power supply relay controller and an electric power steering apparatus capable of appropriately preventing contact failure of relays. When abnormal conduction between relay contacts occurs, a power supply relay circuit is opened and closed while a predetermined potential difference is applied between the relay contacts. At this time, an operation for turning on the relay contacts (121) is performed while the charge of an electrolytic capacitor (151) by a precharge circuit (150) is limited. In this way, an ice layer between the relay contacts is removed by thermal energy of an arc that is generated between the contacts by a potential difference between the relay contacts.


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    Title :

    POWER SUPPLY RELAY CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE


    Additional title:

    STEUERUNGSVORRICHTUNG FÜR EIN STROMVERSORGUNGSRELAIS UND ELEKTRISCHE SERVOLENKVORRICHTUNG
    DISPOSITIF DE COMMANDE DE RELAIS D'ALIMENTATION ET DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE


    Contributors:

    Publication date :

    2018-11-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H01H Elektrische Schalter , ELECTRIC SWITCHES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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