| 摘要 |
<p>A throttle valve control device, wherein, when the opening of a throttle valve is positioned at a default opening, a lever (4) rotated according to the rotation of a throttle shaft (2) is held by end parts (6b, 6c) of a torsion coil spring (6) and, when the opening is fully opened, the lever (4) is controllably rotated counterclockwise to a specified angle against a force from the end part (6b) of the coil spring (6), on the other hand, the end part (6c) is held in stationary state by a stopper member (7) and, when the opening is positioned at idle opening, the lever (4) is controllably rotated clockwise to a specified angle against the end part (6c) of the coil spring (6) and the end part (6b) is held in the stationary state by the stopper member (7) and, when a fault occurs in a throttle control system, this device returns to the state shown in Fig. A and, in this state, the throttle opening forms the default opening, whereby the default opening can be set without utilizing a force difference between a return spring and a resist spring.</p> |
