Patent · US Active

Method for controlling an automated friction clutch

US8449434B2 · kind B2 · utility

0Cited by

1References

4Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Mario Jung · Baden-Baden, DE
Cedric Kieffer · Strasbourg, FR
Bjoern Stehle · Bühl, DE

Key dates

Filing date	Jun 11, 2012
Grant date	May 28, 2013
Priority date	—
Expiry date	Jun 11, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60W2710/0666
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for controlling an automated friction clutch arranged in a drive train of a motor vehicle between an internal combustion engine and a transmission, and is operated in a travel-controlled manner by means of an actuator controlled by a control unit and transmits a maximum clutch torque while the friction clutch is closed, where an engine's torque provided by the internal combustion engine is reduced when the maximum clutch torque is exceeded and is increased when the maximum clutch torque rises. The engine torque is reduced which corresponds to a reduced transmittable clutch torque when the reduced transmittable clutch torque is detected and is increased to the engine torque corresponding to the maximum transmittable clutch torque after a first time interval expires, where the engine torque is limited by means of a second, longer time interval when a reduced transmittable clutch torque is detected.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.