A bi-directional variable voltage converter transfers power between a traction battery and an electric machine inverter. The bi-directional variable voltage converter includes a capacitor, two power module phase legs, and an air-gapped transformer with three windings and no more than four terminals. A first of the windings defines a first terminal and a second terminal of the no more than four terminals. The first terminal is directly electrically connected with a positive terminal of the traction battery and the second terminal is directly electrically connected with a positive terminal of the capacitor and a junction between the second and third windings. A second of the windings defines a third terminal of the no more than four terminals directly electrically connected with one of the power module phase legs. A third of the windings defines a fourth terminal of the no more than four terminals directly electrically connected with the other of the power module phase legs.


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    Title :

    Automotive electric drive systems with interleaved variable voltage converters


    Contributors:
    GE BAOMING (author) / CHEN LIHUA (author)

    Publication date :

    2021-03-23


    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01F MAGNETS , Magnete / 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



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