Provided is an electric power steering apparatus capable of achieving stable sensorless control having a small vibration by correcting an estimation error contained in an estimated angle to suppress a torque fluctuation caused by the estimation error. The electric power steering apparatus includes: a torque sensor configured to detect a steering torque of a driver; a motor configured to assist in a steering force of the driver; a rotation angle estimation unit configured to estimate a rotation angle of the motor to output an estimated angle; a correction signal calculation unit configured to calculate a correction signal based on the steering torque; a frequency separation unit configured to separate the estimated angle into a first frequency component and a second frequency component; an estimated angle correction unit configured to calculate, as a control angle, a value obtained by adding a second-frequency-component corrected signal, which is obtained by correcting the second frequency component based on the correction signal, to the first frequency component; and an electric power supply unit configured to supply electric power to the motor based on the control angle.


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    Titel :

    ELECTRIC POWER STEERING APPARATUS AND ELECTRIC POWER STEERING CONTROL METHOD


    Weitere Titelangaben:

    ELEKTRISCHE SERVOLENKVORRICHTUNG UND STEUERUNGSVERFAHREN FÜR ELEKTRISCHE SERVOLENKUNG
    APPAREIL DE DIRECTION ASSISTÉE ÉLECTRIQUE ET PROCÉDÉ DE COMMANDE DE DIRECTION ASSISTÉE ÉLECTRIQUE


    Beteiligte:
    TSUCHIMOTO YUYA (Autor:in) / KEZOBO ISAO (Autor:in) / TAKATSUKA YUJI (Autor:in) / FURUKAWA AKIRA (Autor:in)

    Erscheinungsdatum :

    2021-02-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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