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. 08, 2018
Filed:
Mar. 15, 2013
Applicant:
Allison Transmission, Inc., Indianapolis, IN (US);
Inventors:
Jared S. Shattuck, Indianapolis, IN (US);
Jeffrey E. Shultz, Zionsville, IN (US);
Peter G. York, Carmel, IN (US);
Assignee:
Allison Transmission, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 17/00 (2006.01); G06F 19/00 (2011.01); F16D 48/06 (2006.01); F16H 61/00 (2006.01); F16H 61/20 (2006.01);
U.S. Cl.
CPC ...
F16D 48/06 (2013.01); F16H 61/0059 (2013.01); F16H 61/20 (2013.01); F16H 2061/205 (2013.01);
Abstract
A device, system, and method for controlling transmission torque to provide hill ascent and/or descent assistance to a vehicle includes applying a clutch hold pressure to one or more clutches of a transmission to lock an output shaft of the transmission to resist roll-back of the vehicle. The clutch hold pressure is applied based on one or more of a transmission output speed signal, an engine throttle signal, and a vehicle brake signal.