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. 25, 2014
Filed:
Mar. 14, 2013
Applicants:
Charles F. Long, Pittsboro, IN (US);
Darren J. Weber, Indianapolis, IN (US);
John William Edward Fuller, Preston, GB;
Stephen Murray, Grimsargh, GB;
Inventors:
Charles F. Long, Pittsboro, IN (US);
Darren J. Weber, Indianapolis, IN (US);
John William Edward Fuller, Preston, GB;
Stephen Murray, Grimsargh, GB;
Assignee:
Allison Transmission, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 17/00 (2006.01); G06F 19/00 (2011.01); F16H 61/664 (2006.01); F16D 48/06 (2006.01);
U.S. Cl.
CPC ...
F16H 61/664 (2013.01); F16D 48/062 (2013.01);
Abstract
A transmission includes an electro-hydraulic controller that includes redundancy in the hydraulic circuit that permits single fault failures to be compensated for by changing the flow path of hydraulic fluid to bypass the single fault failure. The redundancy results in the ability of the transmission to maintain full operation in all modes.