DOG CLUTCH TYPE TRANSMISSION DEVICE

In a dog clutch-type speed change device (50) of a dog clutch-type automatic transmission including a clutch actuator (60) that controls a clutch (44), a shift actuator (70) that performs a speed change of a transmission (48), and a control device (90) that controls the clutch actuator (60) and the shift actuator (70) during a speed change, the clutch actuator (60) and the shift actuator (70) are controlled, when changing a speed, so as to perform dog disengagement by putting the clutch (44) in a disconnected state, and to shift the clutch (44) from the disconnected state to a partially connected state or a fully connected state while a driving dog and a driven dog are caused to be closer to each other from a disengaged state to an engaged state, such that, at the point when the driving dog and the driven dog are engaged with each other, a torque is transmitted between a motive power source (45) and a drive shaft through the clutch (44), a main shaft, the driving dog, and the driven dog.