Patent ID: 7895911

Claim:
A shift control device, comprising: a clutch; a speed change device having a plurality of speed gear ratios; an actuator; a shift shaft that is rotated by the actuator; a clutch transmission mechanism that engages and disengages the clutch in response to rotation of the shift shaft; a speed change device transmission mechanism that switches the speed gear ratio in response to rotation of the shift shaft; a control device that controls the actuator; a stop that regulates rotation of the shift shaft such that a rotation angle of the shift shaft does not exceed a mechanical maximum rotation angle; at least a first determination device that performs an abutting state determination that determines whether the rotation angle of the shift shaft has reached the mechanical maximum rotation angle; and a rotation angle detection device that detects the rotation angle of the shift shaft, wherein the first determination device performs the abutting state determination based on a detection result of the rotation angle detection device; wherein the first determination device performs the abutting state determination based on a change amount of the rotation angle of the shift shaft per a defined period of time; and the first determination device determines that there is an abutting state when the change amount of the rotation angle of the shift shaft per the defined period of time is successively equal to or below a threshold value for a threshold number of times.