The controller controls an inverter that drives an in-vehicle three-phase motor. The controller includes a voltage application unit, a current obtaining unit, an addition unit, an addition conversion unit, and a derivation unit. The current obtaining unit obtains a positive current and a negative current flowing to each of the three phases. The addition unit adds the positive current and the negative current flowing to each phase. The addition conversion unit performs a three-phase to two-phase conversion on the three addition values. The derivation unit derives a magnetic pole position of the rotor, when the rotor is stopped, based on the conversion result of the addition conversion unit.


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    Title :

    Controller and in-vehicle motor-driven compressor


    Contributors:

    Publication date :

    2017-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / 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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