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, 2007
Filed:
Nov. 13, 2003
Brian Keyse, Farmington Hills, MI (US);
Steve Cicala, Dearborn Heights, MI (US);
Ihab Soliman, Dearborn, MI (US);
Charles Suter, South Lyon, MI (US);
Kurt Nickerson, Farmington, MI (US);
Bradley Riedle, Northville, MI (US);
Brian Keyse, Farmington Hills, MI (US);
Steve Cicala, Dearborn Heights, 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 pressure control method for synchronous downshifts in an automatic transmission that uses pressure actuated friction elements. The method uses characteristic parameters that determine downshift quality for both power-on downshifts and power-off downshifts. Selected measured variables are monitored to detect changes in the parameters. Adjustments for the friction elements are made in response to changes in the measured variables.