| 摘要 |
PURPOSE:To improve the quick responsiveness and the stability of a throttle control device, by coupling plural motor shafts with a throttle valve shaft via a differential gear. CONSTITUTION:The valve stem 2 of a throttle valve 1 is coupled with the shafts of plural motors 6, 7 via a differential gear device 5. In case of idling, only the motor 6 is rotated. Then, the motor 7 is fixed by an internal brake, and the rotational angle of a gear 51 is reduced against the rotation of the motor 6, so that the resolvability of a throttle control device can be improved. And the quick responsiveness of the throttle control device can be ensured when the rotational angle of the motor 7 is enlarged. |
