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:
Nov. 20, 2012
Filed:
Jun. 16, 2009
Hiroyuki Sawada, Okazaki, JP;
Masato Kaigawa, Toyota, JP;
Shinya Toyoda, Nisshin, JP;
Kei Kitajima, Toyota, JP;
Yoshio Hasegawa, Chiryu, JP;
Fuminori Monji, Toyota, JP;
Hiroyuki Sawada, Okazaki, JP;
Masato Kaigawa, Toyota, JP;
Shinya Toyoda, Nisshin, JP;
Kei Kitajima, Toyota, JP;
Yoshio Hasegawa, Chiryu, JP;
Fuminori Monji, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A control device for an automatic transmissionhaving shift control meansoperative to select a manual shift mode is provided for preventing acceleration response from deteriorating in the automatic transmission. The control device includes automatic up-range control meansfor switching a range to a 'D' range when high oil-temperature determining means determines presence of a high oil-temperature state, and high oil-temperature down-range permitting meansfor permitting a down-range during a manual shift operation until a selected uppermost gear position Greaches a determining gear position Gwhen the accelerator-on drive determining meanssubsequently determines presence of an accelerator-on drive. Even when obtaining a drive force is attempted during an accelerator-on drive mode after switching the range, the down-range by the manual shift operation is permitted until the selected uppermost gear position Greaches the determining gear position G. Thus, a drop in acceleration response in comparison to that of an automatic shift mode is prevented.