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:
Feb. 20, 2018
Filed:
Jun. 30, 2015
Applicant:
Allison Transmission, Inc., Indianapolis, IN (US);
Inventor:
Bryan Hagelskamp, Carmel, IN (US);
Assignee:
Allison Transmission, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/02 (2006.01); F16H 61/12 (2010.01); F16H 61/688 (2006.01); F16H 61/16 (2006.01);
U.S. Cl.
CPC ...
F16H 61/12 (2013.01); F16H 61/0206 (2013.01); F16H 61/16 (2013.01); F16H 61/688 (2013.01); F16H 2061/1224 (2013.01); F16H 2061/1232 (2013.01); F16H 2061/1292 (2013.01); Y10T 74/19153 (2015.01); Y10T 74/19163 (2015.01); Y10T 74/19251 (2015.01);
Abstract
A control for a multi-speed automatic vehicle transmission includes electrical and hydraulic components, such as pressure control valve systems in fluid communication with shift valves and electrohydraulic actuators. The control includes electrohydraulic features configured to enable the transmission to respond to an electrical failure whether the transmission is in neutral, a reverse range, or one of a plurality of forward ranges.