Abstract: The transmission includes a case, a rotation shaft rotatably supported on the case, a speed change gear rotatably supported on the rotation shaft, fork shaft movable in an axial direction in response to the shift operation, a connecting member for changing over a connection condition of the speed change gear between a connected condition with the rotation shaft and a disconnected condition from the rotation shaft in response to an axial position of the fork shaft, a parking gear fixed to the rotation shaft, a detent member movable between a detent position where the rotation of the parking gear is restricted and a detent released position where the rotation of the parking gear is allowed and a cam member for moving the detent member to the detent position or to the detent released position in response to the axial position of the fork shaft.

Abstract: A clutch control system includes a release fork rotatably supported by a release shaft via a support portion and including a press arm and a drive arm extending from the support portion, the press arm of which an end portion presses a release bearing provided at a clutch to bring the clutch to one of an engagement state and a disengagement state, a sector gear including sector teeth integrally formed at an end portion, the sector teeth being formed into an arc shape concentric to the release shaft, a worm wheel rotatably supported by a wheel shaft arranged in parallel with the release shaft, the worm wheel including teeth, a pinion gear integrally formed at the worm wheel and engaging with the sector teeth, and a worm driven to rotate by an electric motor and engaging with the teeth of the worm wheel to rotate the worm wheel.

Abstract: A clutch control system includes a release fork including a press arm and a drive arm, the release fork operating a clutch to one of an engagement state and a disengagement state, a worm wheel rotatably supported by a wheel shaft and including teeth, a roller rotatably supported by a support pin of which one end is fixed to the worm wheel, the support pin extending in parallel with the wheel shaft while having a predetermined distance therefrom, and a worm driven to rotate by an electric motor and engaging with the teeth. When the worm wheel is driven by the motor, the roller presses a side portion of the drive arm to rotate the release fork, and a release bearing of the clutch is pressed by an end portion of the press arm to bring the clutch to one of the engagement state and the disengagement state.