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:
May. 09, 2017
Filed:
Nov. 24, 2014
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventor:
Michael Tekletsion Berhan, Sylvania, OH (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/04 (2006.01); F16D 48/06 (2006.01); F16H 61/12 (2010.01);
U.S. Cl.
CPC ...
F16H 61/0437 (2013.01); F16D 48/06 (2013.01); F16H 61/12 (2013.01); F16D 2300/18 (2013.01); F16D 2500/50287 (2013.01); F16H 2061/0462 (2013.01);
Abstract
A speed sensor is integrated with a bearing of a transmission. The speed sensor may sense rotation of a bearing cage using a proximity sensor or may sense passage of the rolling elements themselves using an acceleration sensor. The speed of the shaft supported by the bearing is calculated from the speed sensor reading. The shaft speed may be used to control a slipping clutch during a shift event. When the transmission is in a fixed gear ratio, inconsistent speed sensor reading may indicate a preload issue.