A motor control device for a motor includes: an inverter circuit supplying power of a battery to the motor; an inverter input voltage detector detecting an inverter input voltage; and a controller including a drive controller for the motor and an abnormality determination unit for determining power feeding abnormality. The abnormality determination unit determines the power feeding abnormality when the inverter input voltage is lower than a voltage threshold and a current from the battery to the inverter circuit is in a determinable range. The abnormality determination unit determines, based on a motor current electrically conducted to the motor or a rotational speed of the motor, whether the current is in the determinable range. A determination threshold in accordance with the determinable range is set that the inverter input voltage is equal to or higher than the voltage threshold when the power feeding region is normal.


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    Titel :

    Motor control device and electric power steering device including the same


    Beteiligte:
    SUZUKI HARUO (Autor:in) / KURODA YOSHIHIDE (Autor:in)

    Erscheinungsdatum :

    2019-04-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge



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