| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable smooth engagement of a gearing and engaging means when engaging the gearing and engaging means and a forward clutch while stopping a vehicle to establish a forward shift transmission means. <P>SOLUTION: When operating a synchro device S1 to establish a prescribed forward shift transmission step, it is difficult to smoothly couple a first speed drive gear 21 on an input shaft 11 with the synchro device S1 since torque of an engine E acts on the synchro device S1 provided on the input shaft 11 as dragging torque of a first clutch C1 whose engagement is released. The torque is allowed to act on the first speed drive gear 21 in a rearward direction by temporarily engaging a reverse clutch CR in a process in which the synchro device S1 operates. Torsion is applied on a power transmission path between the first speed drive gear 21 and a drive wheel W to generate looseness between the synchro device S1 and the first speed drive gear 21 by a repulsion force releasing the torsion at the moment when engagement of the reverse clutch CR is released so as to enable the synchro device S1 to be smoothly operated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
