Two-mode, compound-split, electro-mechanical vehicular transmission having significantly reduced vibrations
US6358173B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2000 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Jun 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2186
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A two-mode, compound-split, electro-mechanical transmission utilizing an input member and an output member for delivering power to and from the transmission as well as a plurality of planetary gear subsets that circumscribe an axially-extending transmission main shaft. Selective of the aforesaid planetary gear subsets are, in turn, circumscribed by first and second motor/generators. Structural means are employed to ground the various rotating members against movement in other than their desired rotation. Selected planetary gear subsets may also employ uniquely configured carrier cage assemblies that assure the necessary meshing engagement of the planet gears supported therein with the outer ring gear and the inner sun gear of the planetary gear subsets within which the unique carrier cage assemblies are associated while precluding lateral movement of the planet gears as well as movement thereof in directions other than that of their respectively desired rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.