[Problem]An object of the present invention is to provide a vector control type motor control unit that compensates a dead time of an inverter without a tuning operation, improves a distortion of a current waveform and responsibility of the current control, and suppresses sound, vibration and a torque ripple.[Means for solving the problem]The present invention is the vector control type motor control unit that calculates a q-axis control assist command value, calculates dq-axes current command values from the control assist command value, converts the dq-axes current command values into 3-phase duty command values, and drives and controls a 3-phase brushless motor by a PWM-controlled inverter, wherein dead time compensation of the inverter is performed by calculating 3-phase dead time reference compensation values based on a motor rotational angle, calculating 3-phase dead time compensation values by temperature-correcting the 3-phase dead time reference compensation values, and adding the 3-phase dead time compensation values to 3-phase voltage command values after performing dq-axes space vector modulation.


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    Title :

    MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE EQUIPPED WITH SAME


    Additional title:

    MOTORSTEUERUNGSVORRICHTUNG UND DAMIT AUSGESTATTETE ELEKTRISCHE SERVOLENKVORRICHTUNG
    DISPOSITIF DE COMMANDE DE MOTEUR ET DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE LE COMPORTANT


    Contributors:

    Publication date :

    2020-04-22


    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



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