| 摘要 |
A throttle control apparatus includes an accelerator operation mechanism, a driving source, a throttle shaft fixing a throttle valve, a supporting member fixed to the throttle shaft, a rotor supported on the throttle shaft and connected with the driving source so as to be rotated by the driving source, a movable member movably supported on the throttle shaft in the axial direction of the throttle shaft between the rotor and the supporting member, a connection member connecting the movable member with the supporting member, an electromagnetic coil attracting the movable member under the exciting condition for connecting the movable member with the rotor, an engaging member fixed to the movable member and extending toward the axial direction of the throttle shaft, an operation member having an end surface which can be engaged with the engaging member and connected with the accelerator operation mechanism so as to be able to rotate in response to the accelerator. The throttle control apparatus is constituted so as not to engage the engaging member with the operation member under the exciting condition of the electromagnetic coil. Therefore, in the acceleration slip control, the driving source is controlled in response to the slip condition and throttle shaft is rotated by the driving source regardless of the accelerator. The engagement between the rotor and the movable member is released under the abnormal condition and the engaging member is engaged with the operation member. Thereby, the throttle shaft is directly driven in response to the operation of the accelerator.
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