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:
Sep. 11, 2007
Filed:
Apr. 27, 2004
Atsushi Tabata, Okazaki, JP;
Akira Hoshino, Aichi-ken, JP;
Terufumi Miyazaki, Toyota, JP;
Atsushi Honda, Seto, JP;
Akiharu Abe, Toyota, JP;
Hirofumi Ota, Toyota, JP;
Atsushi Tabata, Okazaki, JP;
Akira Hoshino, Aichi-ken, JP;
Terufumi Miyazaki, Toyota, JP;
Atsushi Honda, Seto, JP;
Akiharu Abe, Toyota, JP;
Hirofumi Ota, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
With the automatic transmission-for vehicle according to the present embodiment, since multistage transmission of eight forward gear stages can be obtained by means of four sets of planetary gear setsand, four clutches Cthrough Cand three brakes Bthrough B, the transmission can be fabricated to be light in weight and made compact, wherein the mountability thereof in a vehicle can be improved. Further, as has been made clear in FIG.(), since speed change in the respective gear stages can be carried out only by a shifting action of any two of the clutches Cthrough Cand brakes Bthrough B, the speed change control can be facilitated and it is possible to prevent a shock to the transmission from occurring.