Patent ID: 7229383

Claim:
A control method in a vehicle, said method comprising: controlling a clutch coupling ( 3 ) via a brake control ( 17 ) in a vehicle, said clutch coupling ( 3 ) having as a primary function to transmit motive force from an internal combustion engine ( 1 ) of the vehicle to an automatic stage-geared gearbox ( 9 ) arranged in the vehicle and said brake control ( 17 ) having as a primary function to control service brakes ( 16 ) of the vehicle; activating a control function, at zero throttle opening and with a gear engaged and no brake force required, thereby controlling said clutch coupling ( 3 ) via the brake control ( 17 ); making a determination of a position of the clutch coupling ( 3 ) upon attaining one of (a) 100% slip and (b) a traction position (x END ); making a determination of a position of the clutch coupling ( 3 ) upon attaining one of (a) 0% slip and (b) slip initiation (x INIT ) and (c) a fully engaged position (x 100 ); making a determination of a first operating range (y 0 ≦y<y END ) of the brake control ( 17 ) with a lower limit (y 0 ) and an upper limit (y END ), in which first operating range (y 0 ≦y<y END ) the clutch coupling ( 3 ) is controlled via the brake control ( 17 ) and in which the lower limit (y 0 ) corresponds to the position where the clutch coupling begins to slip and the upper limit (y END ) corresponds to the traction position; and controlling the clutch coupling ( 3 ) via the brake control ( 17 ) when the brake control is in the first operating range and in which the clutch coupling is controlled as a function of the position of the brake control, the traction position (x END ) and one of (a) fully engaged position (x 100 ) and (b) the position where the clutch coupling begins to slip (x INIT ).