Vehicle clutch control method

1. A vehicle clutch control method comprising:

an incline detecting step of detecting an incline of a road surface when a vehicle is in a creep hold state;

a first determining step of determining whether the detected incline is greater than a first set value; and

a first control step of opening a clutch and operating an electronic stability program (ESP) brake when the incline is greater than the first set value.

2. The vehicle clutch control method according to claim 1 , further comprising a mode determining step of determining whether the vehicle is in the creep hold state, before the incline detecting step.

3. The vehicle clutch control method according to claim 2 , wherein in the mode determining step, when a torque detected in the clutch is equal to or greater than a constant value and a vehicle speed is detected as 0, the vehicle is determined to be in a creep hold state.

4. The vehicle clutch control method of claim 2 , wherein, in the mode determining step, when a parking brake that is a braking device provided in the vehicle separately from the ESP is turned ON, the vehicle is determined to be in a normal state.

5. The vehicle clutch control method of claim 1 , further comprising a second determining step of determining whether the incline is greater than a second set value, when the incline is equal to or smaller than the first set value as a result of performing the first determining step, wherein the second set value is set to be smaller than the first set value.

6. The vehicle clutch control method of claim 5 , further comprising a second control step of maintaining a slip state of the clutch, when the incline is greater than the second set value.

7. The vehicle clutch control method of claim 5 , further comprising a third control step of opening the clutch, when the incline is equal to or smaller than the second set value.