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:
Jul. 17, 2012
Filed:
Feb. 27, 2008
Fumitaka Nagashima, Fuji, JP;
Takateru Kawaguchi, Shizuoka, JP;
Shinya Mochiyama, Fuji, JP;
Yoshihide Shinso, Shizuoka, JP;
Fumitaka Nagashima, Fuji, JP;
Takateru Kawaguchi, Shizuoka, JP;
Shinya Mochiyama, Fuji, JP;
Yoshihide Shinso, Shizuoka, JP;
JATCO Ltd, Fuji-shi, JP;
Abstract
In an automatic transmission of this invention, a determination as to whether or not a failure has occurred in a friction element is made repeatedly while a vehicle is traveling, and control to specify the failed friction element is begun when a vehicle speed falls to or below a predetermined value for the first time following detection of the failure in the friction element (S, S). When the failed friction element has been specified (S, S, S, S, S, S, S), usable gear positions are determined on the basis of the specified friction element, whereupon shift control is performed using only the usable gear positions (S, S, S, S, S, S, S, S).