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. 07, 2006
Filed:
Nov. 13, 2003
Adaptive pressure control method for achieving synchronous upshifts in a multiple-ratio transmission
Steve Cicala, Dearborn Heights, MI (US);
Brian Keyse, Farmington Hills, MI (US);
Ihab Soliman, Dearborn, MI (US);
Charles Suter, South Lyon, MI (US);
Kurt Nickerson, Farmington, MI (US);
Bradley Riedle, Northville, MI (US);
Steve Cicala, Dearborn Heights, MI (US);
Brian Keyse, Farmington Hills, MI (US);
Ihab Soliman, Dearborn, MI (US);
Charles Suter, South Lyon, MI (US);
Kurt Nickerson, Farmington, MI (US);
Bradley Riedle, Northville, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
An adaptive shift control method for a geared multiple ratio transmission having friction elements for clutches and brakes to establish and disestablish gear ratio changes wherein at least one ratio change involves engagement of one friction element in synchronism with disengagement of another friction element. Operating parameters are adapted throughout the life of the transmission to reduce synchronous errors by developing and learning pressure and time adjustments for the friction elements.