Patent ID: 8321103

Claim:
A transmission control system for a vehicle including an engine, a clutch, and a transmission, comprising: an engine torque adjuster arranged to adjust an engine torque generated in the engine; a clutch operating mechanism arranged to disconnect and connect the clutch; a shifting mechanism arranged to shift a gear position of the transmission; and a controller arranged to control the engine torque adjuster, the clutch operating mechanism, and the shifting mechanism; wherein when the transmission is shifted up, the controller calculates a target rotation speed of the engine after the up-shifting of the transmission while calculating a first amount of energy required to reduce a rotation speed of the engine to the target rotation speed, causes the engine torque adjuster to decrease the engine torque while causing the clutch operating mechanism to disconnect the clutch, and causes the shifting mechanism to shift the gear position of the transmission with the clutch disconnected, and after the gear position is shifted, the controller causes the engine torque adjuster to increase the engine torque according to a target engine torque value set as a value that changes in a predetermined torque adjustment period while causing the clutch operating mechanism to connect the clutch such that an engagement torque of the clutch increases according to a target clutch engagement torque value set as a value that changes in the torque adjustment period; and in the torque adjustment period, the target clutch engagement torque value is set such that a difference between a second amount of energy generated in the clutch when the engagement torque of the clutch is generated according to the target clutch engagement torque value and a third amount of energy generated in the engine when the engine torque is generated according to the target engine torque value is substantially equal to the first amount of energy.