Variable characteristic limited-slip differential

A differential used for distributing input torque, comprising:

• a casing configured to receive the input torque;
• a differential gear set supported by the casing and including a first and second side gears, the differential gear set being configured to differentially distribute the input torque to the first and second side gears;
• a clutch interposed between the casing and the first side gear to frictionally brake the first side gear relative to the casing so as to limit differential motion between the first side gear and the second side gear;
• an actuator configured to exert a pressure force on the clutch to control the differential motion;
• and
• an electronic control unit electrically connected to the actuator, the electronic control unit configured to calculate a locking rate from a selected differential torque ratio, calculate a requesting torque from a product as a result of multiplying the input torque by the locking rate, and control an electric power to be input to the actuator on the basis of the requesting torque.