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:
Aug. 22, 2017
Filed:
Jun. 14, 2016
Applicant:
Allison Transmission, Inc., Indianapolis, IN (US);
Inventors:
John Byerly, Indianapolis, IN (US);
Jeff Shultz, Zionsville, IN (US);
Assignee:
Allison Transmission, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/14 (2006.01); F16D 48/06 (2006.01); F16H 63/46 (2006.01);
U.S. Cl.
CPC ...
F16H 61/143 (2013.01); F16D 48/06 (2013.01); F16H 63/46 (2013.01);
Abstract
A method and system are provided for operating a lockup clutch of a torque converter of a motor vehicle. The torque converter includes a pump rotatably driven by a drive unit, a rotatable turbine fluidly coupled to the pump and configured to drive an input shaft of a transmission, and a lockup clutch selectively engageable to non-fluidically couple the pump to the turbine to transmit torque from the drive unit to the transmission. The operation of the lockup clutch is controlled by the system in response to detecting that the motor vehicle is coasting.