This application provides a motor controller for an electric vehicle. The motor controller includes a control circuit and an inverter circuit. The inverter circuit includes a plurality of switching transistor bridge arms, and each switching transistor bridge arm includes an upper bridge arm switching transistor and a lower bridge arm switching transistor. Bridge arm midpoints of the plurality of switching transistor bridge arms are configured to connect to a multiphase winding of a drive motor, one end of each switching transistor bridge arm is configured to connect to one end of a bus capacitor and one end of a power battery, and the other end of each switching transistor bridge arm is configured to connect to the other end of the bus capacitor. The control circuit is configured to: in response to that the drive motor rotates with a pair of wheels of the electric vehicle, control a switch module to connect a center tap of the multiphase winding to the other end of the power battery, and control the inverter circuit to adjust a voltage at both ends of the bus capacitor. The bridge arms of the inverter circuit of the motor controller provided in this application and the winding of the drive motor form a voltage conversion circuit to adjust the voltage at both ends of the bus capacitor, to improve power performance and vehicle endurance of the electric vehicle.


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    Title :

    MOTOR CONTROLLER, ELECTRIC VEHICLE, AND CONTROL METHOD FOR ELECTRIC VEHICLE


    Additional title:

    MOTORSTEUEREINHEIT, ELEKTROFAHRZEUG UND STEUERUNGSVERFAHREN FÜR ELEKTROFAHRZEUG
    CONTRÔLEUR DE MOTEUR, VÉHICULE ÉLECTRIQUE ET PROCÉDÉ DE CONTRÔLE DE VÉHICULE ÉLECTRIQUE


    Contributors:
    YANG LIZHOU (author) / LI WENDA (author) / TANG JIE (author)

    Publication date :

    2025-02-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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