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:
Jan. 04, 2005
Filed:
Jun. 14, 2002
Daniel Denton, Oakland County, MI (US);
Shawn Swales, Canton, MI (US);
Daniel Denton, Oakland County, MI (US);
Shawn Swales, Canton, MI (US);
Visteon Global Technologies Inc., Dearborn, MI (US);
Abstract
A method for shifting from a first gear ratio to a second gear ratio in a vehicle is provided. The method includes defining a variable shift schedule comprising at least two gear ratio change parameters. The gear ratio parameters are defined by a pair of engine variables relating to vehicle performance. The method also includes measuring the pair of engine variables to obtain values indicative of vehicle performance for the first gear ratio. The method further includes comparing the values to the two gear ratio change parameters to detect a variable shift condition known to require changing of the first gear ratio. The method also includes shifting from the first gear ratio to the second gear ratio when the variable shift condition is detected.