System and method for controlling power transmission mechanism, and utility vehicle

A system for controlling a power transmission mechanism, the system comprising:

• a power transmission mechanism including a rotation shaft, a power transmission gear rotatably fitted to the rotation shaft and locked to the rotation shaft with respect to an axial direction, a dog ring slidably fitted to the rotation shaft so as to be slidable in the axial direction and locked to the rotation shaft with respect to a circumferential direction, and a dog clutch in the dog ring and the power transmission gear;
• a switching mechanism configured to move the dog ring in the axial direction to switch a power transmission state;
• and
• a switching controller configured to control an operation of the switching mechanism, and the switching controller being further configured to:
• determine whether the dog clutch is in an engaged state when a switching command is given to the switching mechanism to switch the power transmission state by moving the dog ring in the axial direction to a side of the power transmission gear, and
• after determining that the dog clutch is not in the engaged state, control the switching mechanism to move the dog ring in the axial direction to a side opposite to the power transmission gear, and then control the switching mechanism to retry movement of the dog ring to the side of the power transmission gear.