Patent ID: 8328686
Filing Date: 2012-12-11
Classification: F16H,Y10T

Abstract:
1. A shift controller of a twin clutch type transmission comprising: the transmission having a plurality of gear pairs according to speed between a main shaft and a countershaft; and a twin clutch configured by a first clutch and a second clutch respectively arranged on the main shaft, and in which torque of an engine is connected/disconnected between the engine and the transmission by the twin clutch, wherein the main shaft is configured by a first main shaft that supports a plurality of gears for odd-numbered speeds and a second main shaft that supports a plurality of gears for even-numbered speeds; the first clutch connects/disconnects the torque transmitted to the first main shaft and the second clutch connects/disconnects the torque transmitted to the second main shaft; the transmission is so configured that when a shift drum is turned to a predetermined position, a dog clutch for first speed that transmits torque of a first-speed gear and a dog clutch for second speed that transmits torque of a second-speed gear are both engaged with a predetermined gear; the shift controller includes: single oil pressure supply means that supplies oil pressure for connecting the twin clutch; oil pressure supply destination switching means that switches a destination of oil pressure supplied from the oil pressure supply means between the first clutch and the second clutch; and a controller that controls oil pressure supplied to the twin clutch and turning of the shift drum; and the controller supplies a predetermined oil pressure (P wherein the predetermined time is finished before timing at which the dog clutch for first speed and the dog clutch for second speed are engaged.