An ECU includes plural sensor units and plural control units. The sensor units include magnetic field detection elements for detecting a rotation of a motor, and output mechanical angles related to the rotation angle in one rotation and count values related to the number of rotations of the motor, respectively. One rotation of the motor is divided into indefinite regions, in which detection deviation of the count values may occur, and definite regions, in which no detection deviation occurs. The definite region of the count value is set to deviate from the definite region of the other count value. Absolute angle calculation units calculate the absolute angles using the count values of the definite regions.


    Access

    Download


    Export, share and cite



    Title :

    ROTATION DETECTION DEVICE AND ELECTRIC POWER STEERING APPARATUS USING THE SAME


    Contributors:

    Publication date :

    2020-02-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein



    Rotation detection device and electric power steering apparatus using the same

    FUJITA TOSHIHIRO / NAKAJIMA NOBUYORI / TAKI MASAYA et al. | European Patent Office | 2022

    Free access

    MOTOR ROTATION ANGLE DETECTION APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING SAME

    KAWANO YU / ASAO YOSHIHITO | European Patent Office | 2021

    Free access



    Rotation detecting apparatus and electric power steering apparatus using the same

    FUJITA TOSHIHIRO / KABUNE HIDEKI / HAYASHI KATSUHIKO et al. | European Patent Office | 2019

    Free access