Embodiments of this application disclose a motor control unit, a powertrain, and an electric vehicle. The motor control unit includes an inverter circuit, the inverter circuit includes three bridge arms, each bridge arm includes an upper bridge switching transistor and a lower bridge switching transistor, and bridge arm midpoints of the three bridge arms are respectively connected to three phase windings of a drive motor. In response to a current frequency of at least one phase winding being greater than or equal to a first frequency threshold, three upper bridge switching transistors or three lower bridge switching transistors switch from an alternate conduction mode to a continuous conduction mode or a continuous cutoff mode; or three upper bridge switching transistors and three lower bridge switching transistors switch from an alternate conduction mode to a continuous cutoff mode. In response to a current frequency of at least one phase winding being less than a second frequency threshold, the three upper bridge switching transistors and the three lower bridge switching transistors switch from an alternate conduction mode to a continuous cutoff mode; or the three upper bridge switching transistors or the three lower bridge switching transistors switch from a continuous conduction mode to a continuous cutoff mode. In embodiments of this application, control accuracy of the motor control unit can be improved.


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    Title :

    MOTOR CONTROLLER, POWERTRAIN AND ELECTRIC VEHICLE


    Additional title:

    MOTORSTEUERUNG, ANTRIEBSSTRANG UND ELEKTROFAHRZEUG
    DISPOSITIF DE COMMANDE DE MOTEUR, GROUPE MOTOPROPULSEUR ET VÉHICULE ÉLECTRIQUE


    Contributors:
    XU YANKUN (author) / ZHAO YANG (author)

    Publication date :

    2025-04-02


    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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