The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2014
Filed:
Oct. 23, 2009
Franz Bitzer, Friedrichshafen, DE;
Franz Bitzer, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method of determining the wear condition of a shifting clutch () of a motor vehicle which is provided either for interrupting the force flow or equalizing the rotation speed between a drive output shaft () of an internal combustion engine () and a drivetrain (). The wear condition of the clutch () is determined from the parameters of clutch release path (s) the and release force (F), at a release bearing () of the clutch () and, for this purpose, a difference between the clutch release path (s), at a first increase-point () of the release force (F) and at a reference point () represented by a second increase of the release force (F), is measured when the clutch is actuated.