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:
Nov. 29, 2016
Filed:
Sep. 10, 2015
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
John G. Fowler, Livonia, MI (US);
Joseph F. Kucharski, Livonia, MI (US);
Michael William Brylinski, Wixom, MI (US);
Timothy L. Sargent, Northville, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/08 (2006.01); F16D 48/06 (2006.01);
U.S. Cl.
CPC ...
F16D 48/06 (2013.01); F16D 2300/22 (2013.01); F16D 2500/10412 (2013.01); F16D 2500/50293 (2013.01);
Abstract
During state transitions, a clutch actuator position command includes an oscillating component called a dither. This dithering helps avoid jumps in the actuator position due to friction when the commanded position is changed gradually. Also, dither during a transition from fully released to slipping causes the natural frequency of the system to change gradually rather than abruptly. This permits use of another slipping clutch for active damping based on a measured oscillation.