Patent ID: 7373235

Claim:
A system for controlling an automated friction clutch disposed between an engine and a transmission of a motor vehicle, comprising: an actuator configured to set the clutch to a position defined by a position signal; a clutch torque computation device configured to compute an engine torque-dependent component of a setpoint clutch torque and a clutch slip-dependent component of the setpoint clutch torque from an engine torque and at least one operating state variable of the drive train of the vehicle; a position signal computation device configured to determine the position signal supplied to the actuator from the engine-torque component and the clutch slip-dependent component of the setpoint clutch torque and a stored assignment between the setpoint clutch torque and the position signal; an adaptive precontrol unit; a setpoint slip computational unit configured to compute a setpoint slip, a controller configured to receive a signal corresponding to an actual slip and a signal corresponding to the setpoint slip from the setpoint slip computational unit; and a slip-control switch disposed between the clutch torque computation device and the position signal computation device, wherein, in a slip-control state, the slip-control switch is configured to separate a direct connection between the clutch torque computation device and the position signal computation device, to connect a signal path containing the engine-torque component of the clutch torque from the adaptive precontrol unit to a first input of the position signal computational unit, and to connect a signal path containing the slip-dependent component of the clutch torque from the controller to a second input of the position signal computation unit.