A F/B gain control unit (47) computes a first change component (d¸Ä) by executing torque feedback control based on a torque deviation (T) using a feedback gain that is computed by a F/B gain variable control unit (80). The F/B gain variable control unit (80) computes one of two different feedback gains (K1, K2) that correspond to a "first computation mode" in which the first change component (d¸Ä) is used as an addition angle (¸a) and a "second computation mode" in which a value obtained by correcting the first change component (d¸Ä) by an estimated motor rotation angular velocity (Ém_e) is used as the addition angle (¸a), respectively. A feedback gain (K1) used in the first computation mode is set such that a response at the feedback gain (K1) is higher than that at a feedback gain (K2) used in the second computation mode.


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    Title :

    Motor control unit and electric power steering system


    Additional title:

    Motorsteuereinheit und elektrisches Servolenkungssystem
    Unité de commande de moteur et système de direction assistée électrique


    Contributors:

    Publication date :

    2018-04-04


    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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