Patent ID: 8725371

Claim:
A speed changing control apparatus for use in a vehicle, the vehicle including a driving power source configured to generate driving power for running; a transmission having a synchromesh mechanism configured to synchronize an input shaft revolution number with an output shaft revolution number and an actuator configured to automatically carry out a shift operation; and an automatic clutch disposed along a driving power transmitting passage between the driving power source and the transmission, the speed changing control apparatus comprising: a shift control unit that starts a shift disengaging operation for the transmission after a speed change is requested and before the automatic clutch turns into a decoupled state, the speed changing control apparatus being configured to cause the synchromesh mechanism to carry out revolution synchronization after the shift disengagement ends with the input shaft revolution number of the transmission in a lowered state, wherein the shift control unit comprises an actual stroke detecting unit that detects a clutch stroke of the automatic clutch, and is configured to start the shift disengaging operation for the transmission upon an actual clutch stroke of the automatic clutch reaching a target position after the speed change is requested and before the automatic clutch turns into a decoupled state.