| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving apparatus for varying a speed by switching a rotation direction of an electric motor, and suppressing a vibration and a noise generated during low rotation. <P>SOLUTION: The driving apparatus comprises: a first gear train G1 for switching a first unidirectional clutch 15 to an engagement state if a motor generator 11 is rotated in a forward direction, and transferring motive power from the motor generator 11 to a differential mechanism 3; and a second gear train G2 having a reduction ratio different from the first gear train G1, switching a second unidirectional clutch 20 to an engagement state if the motor generator 11 is rotated in a backward direction, and transferring the motive power from the motor generator 11 to the differential mechanism 3. In the driving apparatus, a controller 30 switches the rotation direction of the motor generator 11 in response to a vehicle speed and a driving force required for a vehicle 1A, and inhibits a control for switching the rotation direction of the motor generator 11 if the vehicle speed is a predetermined decision speed Va or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
