The invention relates to a product in which torque of a motor (20) is continuously generated when a rotation number of the motor (20) is nearly equal to zero (0), since an output voltage is kept at a constant value in accordance with a rotation position of the motor (20), such a condition that currents are concentrated in a specific element are maintained. As a result, a temperature of the specific element is increased, so that there are problems that a temperature fail of an inverter apparatus may readily occur, and thus, lifetimes of elements are lowered. In a power converter of a motor drive apparatus, windings (LU, LV, LW) are energizing-controlled in such a manner that only 1 phase of a switching circuit is pulse-width-controlled when the motor (20) is under motor locking condition.


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    Title :

    Motor drive apparatus and method and electrically driven brake apparatus


    Additional title:

    Motorantriebsvorrichtung und Verfahren sowie elektrisch betriebene Bremsvorrichtung
    Appareil et procédé de commande d'un moteur, et appareil de freinage à commande électrique


    Contributors:

    Publication date :

    2015-10-28


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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