Title:
車両用自動変速機
Document Type and Number:
Japanese Patent JP4096468
Kind Code:
B2
Abstract:
The present invention is intended to reduce the weight and size of a speed-change mechanism by shortening a high-torque transmission system and to attenuate speed-change shock by reducing an inertia torque in a multi-stage vehicular automatic transmission. For this purpose, a vehicular automatic transmission is equipped with a planetary gear set that receives a decelerated rotation and a non-decelerated rotation as inputs and outputs a plurality of speed-change rotations, a reduction planetary gear, an input shaft that passes through an inner side of the planetary gear set, first and third clutches that couple the input shaft to two different speed-change elements of the planetary gear set respectively through the reduction planetary gear in an engageable and disengageable manner, and a second clutch that couples the input shaft to the other speed-change element of the planetary gear set in an engageable and disengageable manner. The reduction planetary gear and the third clutch for transmitting a high torque are arranged on one side of the planetary gear set, whereas the first clutch for transmitting a high torque is arranged on the other side of the planetary gear set.
Inventors:
Satoru Kasuya
Inagaki Tomoko
Kazumasa Tsukamoto
Masahiro Hayabuchi
Masaaki Nishida
Kenji Goto
Inagaki Tomoko
Kazumasa Tsukamoto
Masahiro Hayabuchi
Masaaki Nishida
Kenji Goto
Application Number:
JP24413699A
Publication Date:
June 04, 2008
Filing Date:
August 30, 1999
Export Citation:
Assignee:
Aisin AW Co., Ltd.
International Classes:
F16H3/62; F16H3/66
Domestic Patent References:
| JP4219553A | ||||
| JP4125345A |
Attorney, Agent or Firm:
Kazuo Chikajima