Multiple input, dual output electric differential motor transmission system
US7481730B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2006 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Oct 24, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multiple input, dual output, electric motor transmission device includes a ring gear and a ring gear motor for driving the ring gear. A first planetary gear set is engaged to the ring gear for geared rotation with respect to the ring gear and a first sun gear is engaged to the first planetary gear set for geared rotation with respect to the first planetary gear set. A first output shaft and a first electric motor are provided, wherein the first output shaft is coupled to a first one of the first planetary gear set and the first sun gear and a rotor of the first electric motor is coupled to a second one of the first planetary gear set and the first sun gear. A second planetary gear set, similar to the first planetary gear set, is also engaged to the ring gear for geared rotation with respect to the ring gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.