PROBLEM TO BE SOLVED: To provide a motor and electrically-driven power steering device having the same, capable of relieving a processing load on controller side by inherently containing a tertiary harmonic wave in an induction electromotive force waveform of a motor to be controlled and capable of improving voltage utilization efficiency of a power supply.SOLUTION: The motor, comprised of a stator and a rotor housed in the stator and fitted with a magnet, is structured to change a shape of the front or rear of the magnet by 3 cycles per one cycle of an electric phase angle along the rotational direction of the rotor. The electrically-driven power steering device includes the motor containing a tertiary harmonic wave in a magnetic flux distribution of the rotor and mounted as a drive source.SELECTED DRAWING: Figure 4
【課題】制御対象であるモータの誘導起電力波形に本来的に第3次高調波を含有させ、制御器側での処理負荷を軽減すると共に、電源の電圧利用効率の向上を図ったモータ及びそれを搭載した電動パワーステアリング装置を提供する。【解決手段】ステータと、ステータに収容され、磁石を装着されたロータとで成るモータにおいて、ロータの回転方向に沿って、磁石の表面若しくは裏面の形状を電気位相角の1周期当たり3周期分変化させた構造とし、ロータの磁束分布に第3次高調波を含有させたモータ及びそれを駆動源として搭載した電動パワーステアリング装置である。【選択図】図4
MOTOR AND ELECTRICALLY-DRIVEN POWER STEERING DEVICE HAVING THE SAME
モータ及びそのモータを搭載した電動パワーステアリング装置
2018-02-15
Patent
Electronic Resource
Japanese
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