A motor controlling method includes a step of obtaining a stator current and a stator voltage, which are represented by a phasor, with respect to an αβ fixed coordinate system or a dq rotating coordinate system, a step of calculating an angle (ϕ) between the stator current and the stator voltage, a step of calculating a torque angle (δ) according to δ=sin−1[L·Is cos(ϕ)/ψm], where L is an armature inductance, ψm indicates a magnetic flux of a rotor magnet, and Is indicates a magnitude of the stator current, and a step of controlling the surface permanent magnet motor based on the torque angle (δ).


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    Title :

    MOTOR CONTROLLING METHOD, MOTOR CONTROLLING SYSTEM, AND ELECTRONIC POWER STEERING SYSTEM


    Contributors:

    Publication date :

    2019-11-28


    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 / B62D MOTOR VEHICLES , Motorfahrzeuge