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, 2011
Filed:
Mar. 28, 2007
Yusuke Kimura, Yokohama, JP;
Atsufumi Kobayashi, Yamato, JP;
Tatsuo Ochiai, Chigasaki, JP;
Shuichi Wakabayashi, Yokohama, JP;
Akihiro Makiyama, Yokohama, JP;
Ryoji Kadono, Isehara, JP;
Yusuke Kimura, Yokohama, JP;
Atsufumi Kobayashi, Yamato, JP;
Tatsuo Ochiai, Chigasaki, JP;
Shuichi Wakabayashi, Yokohama, JP;
Akihiro Makiyama, Yokohama, JP;
Ryoji Kadono, Isehara, JP;
JATCO Ltd, Fuji-shi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A speed change control device for an automatic transmission according to this invention determines whether or not a request to downshift a gear position of the transmission exists during traveling in a manual speed change mode (S, S), and calculates an input shaft rotation speed of the transmission following a downshift based on the downshift request (S). When it is determined that the calculated rotation speed is higher than a rotation speed limit value (S), the speed change control device performs a downshift to a gear position at which the input shaft rotation speed of the transmission is lower than the calculated rotation speed (S, S).