Patent ID: 8660764

Claim:
Method for actuating a friction clutch, the method having the steps: forming on a regulation circuit a regulation-oriented model of a hydraulic actuator arrangement that generates a clutch pressure that acts on the friction clutch, wherein the hydraulic actuator arrangement comprises an electrically actuable fluid source and a hydraulic actuator whose state is characterized by an actuator actual value which is related to the clutch pressure, which model has at least one fluid source actuating variable as an input and at least the actuator actual value as a flat output and which model can be inverted; forming an inverse model of the actuator arrangement; and inputting an actuator nominal value into the inverse model and using a model actuating variable which emerges therefrom for actuating the fluid source; wherein at least a part of the inverse model is used to determine from the actuator nominal value a model clutch pressure and to input the latter into a first regulator which from this and from a corresponding measured actual pressure variable generates a first fluid source actuating variable, wherein the first fluid source actuating variable is used together with the model actuating variable for actuating the fluid source.