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. 02, 2013
Filed:
Jun. 08, 2011
Kazuaki Aota, Sagamihara, JP;
Yukiyoshi Inuta, Isehara, JP;
Akihiro Yamamoto, Hiratsuka, JP;
Takayuki Okuda, Atsugi, JP;
Joerg Mueller, Chemnitz, DE;
Rico Resch, Chemnitz, DE;
Mirko Leesch, Thum, DE;
Kazuaki Aota, Sagamihara, JP;
Yukiyoshi Inuta, Isehara, JP;
Akihiro Yamamoto, Hiratsuka, JP;
Takayuki Okuda, Atsugi, JP;
Joerg Mueller, Chemnitz, DE;
Rico Resch, Chemnitz, DE;
Mirko Leesch, Thum, DE;
Jatco Ltd, Fuji-shi, JP;
Abstract
An automatic transmission includes a double-pinion planetary gearset and two single-pinion planetary gearsets. A first ring gear is held stationary. A second sun gear and a third ring gear are coupled to a first sun gear and a first carrier respectively, constituting first and second rotor units. An output is coupled to a third carrier. A first clutch selectively couples a second carrier to the first rotor unit. A second clutch selectively couples the second carrier to the second rotor unit. A third clutch selectively couples an input to the second carrier. A fourth clutch selectively couples a second ring gear to a third sun gear. A fifth clutch selectively couples the second ring gear to the third carrier. A sixth clutch selectively couples the input to the third sun gear. Nine forward gear ratios and one reverse gear ratio are obtained by simultaneous application of three of the clutches.