A starting clutch control device includes a starting clutch disposed
between an engine and a transmission installed to a vehicle. A torque
coefficient setting section sets a torque coefficient based on a clutch
speed ratio of the starting clutch and a throttle opening of the engine.
A torque coefficient correction section increases the torque coefficient
by a torque coefficient correction amount, increasing the torque
coefficient by a progressively larger torque coefficient correction
amount as the throttle opening increases, in order to increase the torque
coefficient within a region of smaller clutch speed ratios (e.g., clutch
speed ratios less than approximately 0.5). A hydraulic pressure control
section controls hydraulic pressure supplied to the starting clutch based
on the torque coefficient and the rotational speed of the engine.