1219 EPS用DCブラシレスモータの弱め界磁性御時における振動現象に関する一考察(OS3-1:操舵系制御,OS3:交通・物流システムの制御,オーガナイズド・セッション(OS),第18回交通・物流部門大会(TRANSLOG2009))
詳細
A permanent magnet DC brushless motor for electric power steering can be driven up to high revolution speeds by using field weakening control that reduces the magnetic flux. However, a motor vibration is caused by this field weakening control. Therefore, we need to develop a low vibration motor at the field weakening control. The authors focused on this issue, and clarified a mechanism of vibration caused by a magnetostriction of stator core at the field weakening control. In addition, this mechanism was verified by using an actual motor. It was shown that the authors obtained a new finding by the process of this research.
