Patent ID: 7739020

Claim:
A control device for controlling functions of a vehicle which has a drive motor connected to a hydraulic pump and to a hydrodynamic torque converter, which is connected to a clutch, and the clutch is connected to the drive wheels of the vehicle, the control device comprising: a brake system and a brake system sensor which detects actuation of the brake system and issues a braking signal having a value that correlates to a strength of the braking actuation; an electronic controller which determines an input torque of the clutch and disengages the clutch depending on the determined input torque of the clutch and the braking signal; and the hydrodynamic torque converter is located between the clutch and the driving motor and comprises a pump wheel and a turbine wheel, the input torque is determined from a rotational speed of the pump wheel, the rotational speed of the turbine wheel and a characteristic rotational speed line of the hydrodynamic torque converter.