| 摘要 |
PURPOSE:To reduce the shock due to speed change at speed change by a method wherein a process, in which a first transmission system and a second transmission system are respectively connected through an one-way clutch between an input shaft and an output shaft, is given at speed change. CONSTITUTION:The driving transmission system is divided into the first transmission system containing a friction clutch 3, the one-way clutch 6 and a synchromesh unit 15 and the second transmission system containing a friction clutch 17, the one-way clutch 8 and a synchromesh unit 24. In speed change control, a so-called one-way clutch-to-clutch control is performed or one transmission system transmits the torque via the one-way clutch and at the same time the change-over of speed between speed change stages is performed under the condition that the power transmission is disengaged in the other transmission system and, after that, the clutch connected in parallel to the one-way clutch of the other transmission system is put into actuation. In such a manner as described above, the shock due to speed change can be reduced. |
