Clutch control method of vehicle

A clutch control method of a vehicle, the method comprising:

• estimating a change in an input torque supplied by a power source from a depressed extent of an acceleration pedal by a controller;
• obtaining an additional torque at a level to prevent slippage of a clutch against the input torque estimated in the estimating of the change in the input torque by the controller;
• determining a final clutch control torque for controlling the clutch by adding the additional torque, which is obtained in the obtaining of the additional torque, to the input torque by the controller;
• and
• controlling the clutch by operating a clutch actuator with the final clutch control torque determined in the determining of the final clutch control torque by the controller,
• wherein in the estimating of the input torque, the controller obtains an operation variation by differentiating the depressed extent of the acceleration pedal to time, obtains a delay operation variation by moving the operation variation by a predetermined time delay on a time axis, and obtains a torque response function showing a change in the input torque by filtering the delay operation variation.