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.
MOTOR CONTROLLER, POWERTRAIN AND ELECTRIC VEHICLE
MOTORSTEUERUNG, ANTRIEBSSTRANG UND ELEKTROFAHRZEUG
DISPOSITIF DE COMMANDE DE MOTEUR, GROUPE MOTOPROPULSEUR ET VÉHICULE ÉLECTRIQUE
2025-04-02
Patent
Electronic Resource
English
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 |
POWERTRAIN, ELECTRIC MOTOR CONTROLLER, CONTROL APPARATUS, AND ELECTRIC VEHICLE
European Patent Office | 2024
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