Method for determining clutch coefficients of friction and method for determining clutch contact points

US8725374B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Erhard Hodrus · Achern, DE
• Ekkehard Reibold · Lahr (Eifel), DE
• George Goeppert · Hausach, DE
• Juergen Eich · Laufenburg (Baden), DE

Key dates

• Filing date: May 20, 2013
• Grant date: May 13, 2014
• Expiry date: May 20, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2500/50275
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A method wherein the first and second threshold values of the characteristic are a threshold value of the clutch temperature, or of the speed of rotation at the particular input shaft of the clutch, or of the speed of the engine, or of the slip speed at the clutch, or of the clutch torque hysteresis, or of the oil volume flow in a wet clutch, or of the actuator speed or of the actuator position.