Power transmission system of hybrid electric vehicle
US8303447B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2011 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Nov 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/7072
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power transmission system includes an input shaft, a first planetary gear set having first, second, and third rotation elements, wherein the first rotation element is connected to a first motor/generator and the third rotation element is connected to the input shaft, a second planetary gear set having fourth, fifth, and sixth rotation elements, wherein the fourth rotation element is connected to the second rotation element and a second motor/generator, and the fifth rotation element engagable with the first rotation element, an output gear connected to the sixth rotation element, a first clutch selectively connecting the first rotation element with the fifth rotation element, a second clutch selectively connecting two rotation elements among the rotation elements of the first planetary gear set, a first brake interposed between the fifth rotation element and a transmission housing, and a second brake interposed between the fourth rotation element and the transmission housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.