PROBLEM TO BE SOLVED: To provide a motor control device capable of surely controlling drive of an electric motor even when failure is generated in a motor electric angle detection section for detecting a motor electric angle, and to provide an electric power steering apparatus and a vehicle.SOLUTION: A motor control device includes: an electric angle initial value estimation section 111 which when at least one of a resolver 23a and an angle calculation section 60 is diagnosed as abnormal in initial diagnosis after rebooting a system, estimates a motor electric angle initial value θms on the basis of a response output of a 3-phase electric motor 22 corresponding to an input of a motor drive signal to the 3-phase electric motor 22; and a motor electric angle estimation section 63 for calculating a motor electric angle estimation value θme on the basis of an output shaft rotation angle θos detected by an output side rotation angle sensor 13c and a relative offset value θoff estimated on the basis of the motor electric angle initial value θms. When at least one of the resolver 23a and the angle calculation section 60 is diagnosed as abnormal in initial diagnosis after rebooting the system, drive of the 3-phase electric motor is controlled on the basis of the motor electric angle estimation value θme estimated by the motor electric angle estimation section 63.SELECTED DRAWING: Figure 11

    【課題】モータ電気角を検出するモータ電気角検出部に故障が生じた場合でも電動モータを的確に駆動制御することが可能なモータ制御装置、電動パワーステアリング装置及び車両を提供する。【解決手段】システム再起動後の初期診断において、レゾルバ23a及び角度演算部60の少なくとも一方が異常と診断されると、3相電動モータ22へのモータ駆動信号の入力に応じた3相電動モータ22の応答出力に基づきモータ電気角初期値θmsを推定する電気角初期値推定部111と、出力側回転角センサ13cで検出される出力軸回転角θosとモータ電気角初期値θmsに基づき推定された相対オフセット量θoffとに基づきモータ電気角推定値θmeを算出するモータ電気角推定部63とを備え、システム再起動後の初期診断で異常と診断時はモータ電気角推定部63で推定したモータ電気角推定値θmeに基づき3相電動モータを駆動制御する。【選択図】 図11


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    Title :

    MOTOR CONTROL DEVICE, ELECTRIC POWER STEERING APPARATUS, AND VEHICLE


    Additional title:

    モータ制御装置、電動パワーステアリング装置及び車両


    Contributors:
    UKAI NOBUO (author)

    Publication date :

    2017-02-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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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