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:
Aug. 18, 2015
Filed:
Apr. 16, 2013
Applicant:
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Inventor:
Rainer Praus, Ottersweier, DE;
Assignee:
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 19/04 (2006.01); F16D 13/00 (2006.01); F16D 48/00 (2006.01);
U.S. Cl.
CPC ...
G01N 19/04 (2013.01); F16D 13/00 (2013.01); F16D 48/00 (2013.01);
Abstract
A method for ascertaining an adhesion condition of a friction clutch operated with specified slip between an input part and an output part. In the case of rotational speed differences in the range of noise in the latter, a mean value and its variance are continuously derived from measurements taken by an unfiltered rotational speed difference between the input part and the output part, and when the mean value falls below a specified threshold and simultaneously the variance exceeds the mean value, the adhesion condition is recognized.