Patent · US Active

Device for actuating a diaphragm spring clutch for vehicles

US8002100B2 · kind B2 · utility

2Cited by

4References

9Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Peter Herter · Ravensburg, DE
Franz Bitzer · Friedrichshafen, DE

Key dates

Filing date	Aug 11, 2006
Grant date	Aug 23, 2011
Priority date	—
Expiry date	Nov 9, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2500/70406
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention concerns a device for actuating a diaphragm spring clutch (20) for vehicles by means of a pneumatic, hydraulic or electric actuator (24), comprising a controller connected upstream of the actuator (24), whose output control variable actuates the actuator (24). To compensate for the strong nonlinearity of the releasing force over the releasing stroke that is typical of diaphragm springs, a controller is used, whose characteristic curve is plotted in such a way that this nonlinear curve of the releasing force is at least approximately compensated via a correspondingly coordinated actuation of the actuator (24), so that it remains essentially identical over the releasing stroke.

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