Vehicle transmission device

A vehicle transmission device comprising a transmission including a main shaft to which rotational power from an engine is inputted via a clutch, and a countershaft to which rotational power of the main shaft is transmitted via a constant-mesh gear, a clutch operation member that is driven by an actuator and performs disengaging and engaging operations of the clutch, a clutch operation amount detecting sensor that detects an operation amount of the clutch operation member, a control device that operates the actuator, and a driving wheel to which rotational power of the countershaft is transmitted via a driving force transmitting device,

• wherein at least one of a main shaft rotation sensor that detects a rotational frequency of the main shaft, or a countershaft rotation sensor that detects a rotational frequency of the countershaft is provided,
• a damper member elastically deformed by a driving force is provided in at least any one of the countershaft, the driving force transmitting device and the driving wheel, or among the countershaft, the driving force transmitting device and the driving wheel, and
• the control device learns a clutch disengagement operation amount of the clutch operation member when the control device detects deceleration of a predetermined value or more of the rotational frequency of the main shaft or the rotational frequency of the countershaft during clutch disengagement operation.