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:
Sep. 10, 2013
Filed:
Nov. 27, 2012
Ford Global Technologies, Llc, Dearborn, MI (US);
Yuji Fujii, Ann Arbor, MI (US);
Jahan Asgari, Dearborn, MI (US);
Davorin David Hrovat, Ann Arbor, MI (US);
Hong Jiang, Birmingham, MI (US);
Gregory Michael Pietron, Canton, MI (US);
Bradley Dean Riedle, Northville, MI (US);
Christopher John Teslak, Plymouth, MI (US);
Hongtei Eric Tseng, Canton, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A control system and method for controlling a multiple gear ratio automatic transmission in a powertrain for an automatic transmission having pressure activated friction torque elements to effect gear ratio upshifts. The friction torque elements are synchronously engaged and released during a torque phase of an upshift event as torque from a powertrain source is increased while allowing the off-going friction elements to slip, followed by an inertia phase during which torque from a powertrain source is modulated. A perceptible transmission output torque reduction during an upshift is avoided.