| 发明名称 | Power transmission system of hybrid electric vehicle | ||
| 摘要 | A power transmission system of a hybrid electric vehicle may include a first shaft and a second shaft. A first planetary gear set includes a first rotation element connected to a first motor/generator, a second rotation element operated as an output element, and a third rotation element connected to the first shaft. A second planetary gear set includes a fourth rotation element connected to the third rotation element and a second motor/generator, a fifth rotation element connected to the second rotation element and an output gear, and a sixth rotation element connected to a transmission housing. A direct-coupling device connects two rotation elements among the fourth, fifth, and sixth rotation elements of the second planetary gear set. Transfer gears form the externally-meshing gears, and friction elements connect a selected rotation element to a selected transfer gear or to the transmission housing. | ||
| 申请公布号 | US8905882(B2) | 申请公布日期 | 2014.12.09 |
| 申请号 | US201314052586 | 申请日期 | 2013.10.11 |
| 申请人 | Hyundai Motor Company | 发明人 | Lee Chang Wook;Park Jongsool |
| 分类号 | F16H3/72;F16H37/06;B60K6/365;B60K6/387;B60K6/445;B60K6/38;B60K6/48;F16H37/08 | 主分类号 | F16H3/72 |
| 代理机构 | McDermott Will & Emery LLP | 代理人 | McDermott Will & Emery LLP |
| 主权项 | 1. A power transmission system of a hybrid electric vehicle, comprising: a first shaft receiving a torque of an engine; a second shaft disposed in parallel with the first shaft; a first planetary gear set disposed on the first shaft, and including a first rotation element connected to a first motor/generator, a second rotation element operating as an output element, and a third rotation element directly connected to the first shaft; a second planetary gear set disposed on the second shaft, and including a fourth rotation element selectively connected to the third rotation element through an externally-meshing gear and connected to a second motor/generator, a fifth rotation element connected to the second rotation element through an externally-meshing gear and connected to an output gear, and a sixth rotation element connected to a transmission housing; a direct-coupling device connecting two rotation elements among the fourth, fifth, and sixth rotation elements of the second planetary gear set; transfer gears forming the externally-meshing gears; and friction elements selectively connecting a selected rotation element to a selected transfer gear or selectively connecting a selected rotation element to the transmission housing. | ||
| 地址 | Seoul KR | ||