| 摘要 |
<p>PURPOSE:To realize the speedy and smooth shift operation by eliminating the operation disorder of a synchronous mechanism by an external force by temporarily generating a semiclutch state, when the synchronous operation of a synchronous mechanism is completed and indexing operation is not completed. CONSTITUTION:During the operation in which the sleeve of a synchronous mechanism is pushed by a shift actuator, and the meshing of a speed change gear is obtained through a series of operation processes, if the value which is obtained by multiplying the number of revolution of the input shaft 49 of a speed change gear by the speed change gear ratio is not equal to the number of revolution of an output shaft 54, the exciting electric current added to a proportional electromagnetic type pressure control valve 58 is subtracted, and a clutch is temporarily put into a semiclutch state by adding or subtracting the operation quantity of an actuator 23. Since, at this time, the revolution of an engine is transmitted to the input shaft 49 of the speed change gear, the revolution difference is generated between a synchronous ring and the speed change gear, if the synchronous operation of the synchronous mechanism is completed, and the sleeve is pushed by the actuator 23, and indexing operation is accelerated.</p> |
