Conventionally, there is a problem that switching loss of an inverter increases in a case where a change such as improvement in a switching frequency is involved. The battery voltage E and the torque command T* are input to the first current command generation unit 111. The battery voltage E, the torque command T*, and a voltage utilization rate obtained by dividing a line voltage effective value by a battery voltage (DC voltage) are input to a second current command generation unit 112. A magnet temperature Tmag of a rotor magnet is input to a current command selection unit 113, and a current command output from the first current command generation unit 111 is selected in normal operation, and the second current command generation unit 112 is selected in a case where the magnet temperature exceeds a predetermined value. The second current command generation unit 112 is configured not to obtain the voltage utilization rate of 0.3 to 0.4.


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    Titel :

    Motor control device, electromechanical integrated unit, and electric vehicle system


    Beteiligte:
    HARA TAKAFUMI (Autor:in) / AJIMA TOSHIYUKI (Autor:in) / HOSHINO KATSUHIRO (Autor:in) / MAEKAWA NORIYUKI (Autor:in)

    Erscheinungsdatum :

    27.08.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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