Patent · US Expired

Method of and apparatus for preventing shifts of reference positions of friction clutches

US6899655B2 · kind B2 · utility

5Cited by

5References

18Claims

0Family size

Assignee

LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

Thomas Eggert · Pforzheim, DE
Jens Martin · Frankfurt am Main, DE

Key dates

Filing date	Sep 18, 2003
Grant date	May 31, 2005
Priority date	—
Expiry date	Sep 18, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19251
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method of and an arrangement for preventing a shift of the reference position of a clutch which is operated by an actuator and is installed in the power train of a motor vehicle. Such shift of reference position can be caused in response to axial displacements between the input and output shafts of the clutch. The method includes the steps of routinely ascertaining the reference position, memorizing and thus actualizing the information pertaining to the ascertained reference position, ascertaining an operational parameter which is the cause of axial displacements between the input and output shafts of the clutch, and altering the routine determination and the memorizing of the reference position when the operational parameter exceeds a predetermined threshold value.

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