| 摘要 |
<p>The present invention relates to an electric motor and, more particularly, to a motor for implementing a 2-mode neutral point winding which can minimize the increase of a weak field current by reducing a speed electromotive force at high speed and can form a second neutral point in a motor to prevent the deterioration of the efficiency of the motor. According to the motor of the present invention, a full winding method (that is, a high counter electromotive force) is used at low speed and a half winding method (that is, a low counter electromotive force) is used at high speed, thereby expanding the high efficiency operation period of a driving motor for an electric vehicle and increasing the one-charge mileage of the electric vehicle through the increase of efficiency.</p> |
