This application provides a motor controller for pulse heating of a power battery. The motor controller includes an inverter circuit, the inverter circuit includes three switching transistor bridge arms, two ends of each switching transistor bridge arm are respectively configured to connect to positive and negative electrodes of the power battery through a direct current bus, and bridge arm midpoints of the three switching transistor bridge arms are separately configured to connect to a three-phase winding of a motor. The bridge arm midpoints of the three switching transistor bridge arms are configured to output a three-phase current, the three-phase current is used to generate a pulse alternating current on the direct current bus, and the pulse alternating current is used to heat the power battery. A current of each phase of the three-phase current is a unipolar triangular wave, and a sum of the three-phase current is zero. The motor controller provided in this application implements closed-loop control on a direct axis current and a quadrature axis current of a drive motor, so that control precision is high, system robustness is good, and efficiency of heating the power battery is high.
MOTOR CONTROLLER, CONTROL METHOD FOR MOTOR CONTROLLER, POWERTRAIN
MOTORSTEUERUNG, STEUERUNGSVERFAHREN FÜR MOTORSTEUERUNG, ANTRIEBSSTRANG
CONTRÔLEUR DE MOTEUR, PROCÉDÉ DE COMMANDE POUR CONTRÔLEUR DE MOTEUR, GROUPE MOTOPROPULSEUR
2025-05-14
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
MOTOR CONTROLLER, CONTROL METHOD FOR MOTOR CONTROLLER, POWERTRAIN
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