| 发明名称 |
MULTI-SPEED AUTOMATIC TRANSMISSION |
| 摘要 |
A multi-speed automatic transmission may include a first planetary gear set connected to a transmission input shaft, a second planetary gear set connected to the first planetary gear set, a third planetary gear set connected to the second planetary gear set, a fourth planetary gear set connected between the third planetary gear set and a transmission output shaft, and six friction elements configured to selectively couple and decouple a connection among the first to fourth planetary gear sets to generate various gear ratios between the transmission input shaft and the transmission output shaft to implement a plurality of gear stages, in which at least three of the six friction elements are selectively coupled and operated at each gear stage. |
| 申请公布号 |
US2016160963(A1) |
申请公布日期 |
2016.06.09 |
| 申请号 |
US201514835378 |
申请日期 |
2015.08.25 |
| 申请人 |
Hyundai Motor Company |
发明人 |
JI Seong Wook;KOOK Jae Chang;CHO Won Min;NOH Myeong Hoon;SEO Kang Soo;HWANG Seong Wook |
| 分类号 |
F16H3/66 |
主分类号 |
F16H3/66 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A multi-speed automatic transmission, comprising:
a first planetary gear set connected to a transmission input shaft; a second planetary gear set connected to the first planetary gear set; a third planetary gear set connected to the second planetary gear set; a fourth planetary gear set connected between the third planetary gear set and a transmission output shaft; and six friction elements configured to selectively couple and decouple a connection among the first to fourth planetary gear sets to generate various gear ratios between the transmission input shaft and the transmission output shaft to implement a plurality of gear stages, wherein at least three of the six friction elements are selectively coupled and operated at each gear stage. |
| 地址 |
Seoul KR |
