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. 05, 2013
Filed:
Sep. 24, 2008
Tomomasa Ikeda, Sagamihara, JP;
Hiroki Kawakami, Fuji, JP;
Tomomasa Ikeda, Sagamihara, JP;
Hiroki Kawakami, Fuji, JP;
JATCO Ltd, Fuji-shi, JP;
Abstract
An automatic transmission calculates a current thermal load state of the frictional element, predicts (S, S), prior to the start of the shift, a heat generation amount of the frictional element if the shift is performed in the first shift mode, predicts (S, S) a thermal load state of the frictional element upon shift completion on the basis of the current thermal load state of the frictional element and the predicted heat generation amount, and either performs (S, S) the shift in a second shift mode, in which a heat generation amount is lower than that of the first shift mode, or prohibits (S) the shift when the predicted thermal load state upon shift completion is inside a predetermined region.