Method for actuating a friction clutch

US8660764B2 · kind B2 · utility

Assignee

• GETRAG Getriebe- und Zahnradfabrik Hermann Hagen · DE

Inventors

• Thomas Gorius · Lauchheim, DE
• Joerg Meissner · Eindhoven, NL

Key dates

• Filing date: May 11, 2011
• Grant date: Feb 25, 2014
• Expiry date: Nov 8, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2500/708
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A method for actuating a friction clutch, in particular for a motor vehicle drivetrain. The friction clutch is acted on with a clutch pressure generated by a hydraulic actuator arrangement which has an electrically actuable fluid source and which has a hydraulic actuator whose state is characterized by an actuator actual value. The actuator actual value is related to the clutch pressure. The method has the steps: forming a regulation-oriented model of the actuator arrangement, 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 the model actuating variable which emerges therefrom for actuating the fluid source.