A current sensor of a motor controller detects the current applied to a motor drive circuit and thus a phase where a failure cannot be detected would occur without taking any measures. However, an abnormal current monitor section contained in a microcomputer receives a voltage signal of an average value of the currents detected in the current sensor by allowing a signal to pass through a first LPF having a cutoff frequency sufficiently lower than the frequency of a PWM signal. Therefore, whether or not the value is within a predetermined normal range is checked, whereby whether or not some failure containing a failure of the current sensor occurs can be easily determined about every phase.


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    Titel :

    Motor controller and electric power steering system


    Weitere Titelangaben:

    Motorensteuergerät und elektrisches Servolenkungssystem
    Contrôleur de moteur et système à direction assistée électrique


    Beteiligte:
    NAGASE SHIGEKI (Autor:in) / UEDA TAKESHI (Autor:in) / MATSUBARA KEN (Autor:in) / OYA TOSHIAKI (Autor:in) / YOSHII YASUYUKI (Autor:in)

    Erscheinungsdatum :

    2017-06-21


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



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