Method for operating a clutch of a motor vehicle, and motor vehicle

US11174906B2 · kind B2 · utility

Assignee

• AUDI AG · DE

Inventors

• Michael BAER · Maugansville, US
• Martin Arndt · Aachen, DE
• Christian Graf · Emmingen-Liptingen, DE
• Michael Wein · Houston, US
• Marc Baur · Ingolstadt, DE
• Stefan Lehner · Ingolstadt, DE
• Stefan Huefner · Riegelsberg, DE

Key dates

• Filing date: Jul 26, 2017
• Grant date: Nov 16, 2021
• Expiry date: Nov 25, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2500/3125
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A method for operating a clutch of a drive train of a vehicle wherein the clutch, a drive motor primary axis having first wheels that can be driven by the drive motor as first axis and a second axis having second wheels are driven by the drive motor via the clutch as second axis, with the clutch being adjusted between a closed position, wherein a first coupling torque of the clutch is set, and at least one second position differing from the closed position, wherein a second coupling torque of the clutch that is lower than the first coupling torque is set: determining at least one coefficient of friction of a roadway the vehicle is located on; and as a factor of the determined coefficient of friction: adjusting a basic torque of the clutch, with the clutch being prestressed in the second position by the basic torque.