To lighten reduction in motor output torque occurring when power supply current supplied from a power supply to a motor is limited to a predetermined upper limit value or lower. A motor control device (30) including: a power supply voltage detection unit (64) configured to detect a power supply voltage; a rotational angular velocity detection unit (50) configured to detect a rotational angular velocity of the motor; a command value calculation unit (40) configured to calculate a q-axis current command value and a d-axis current command value; a gain computation unit (51) configured to compute, based on an upper limit value of power supply current supplied from a power supply to the motor, the power supply voltage, the rotational angular velocity, the q-axis current command value, and the d-axis current command value, a limit gain reducing the power supply current to the upper limit value or lower by limiting the q-axis current command value and the d-axis current command value; and a driving circuit (48) configured to drive the motor, based on the q-axis current command value and the d-axis current command value limited by the limit gain.


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    Title :

    MOTOR CONTROL DEVICE, ELECTRIC ACTUATOR PRODUCT, AND ELECTRIC POWER STEERING DEVICE


    Additional title:

    MOTORSTEUERVORRICHTUNG, ELEKTRISCHES AKTORPRODUKT UND ELEKTRISCHE SERVOLENKUNG
    DISPOSITIF DE COMMANDE DE MOTEUR, PRODUIT D'ACTIONNEUR ÉLECTRIQUE, ET DISPOSITIF DE DIRECTION À ASSISTANCE ÉLECTRIQUE


    Contributors:

    Publication date :

    2022-02-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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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