Multi-mode electromechanical variable transmission
US9650032B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2015 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Nov 8, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/93
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle includes an engine, a drive axle, a multi-mode transmission selectively coupled to the engine and the drive axle, and a controller coupled to the multi-mode transmission and configured to selectively configure the multi-mode transmission into an active neutral startup mode of operation in response to an engine start request. The multi-mode transmission includes a first gear set having a first planetary gear carrier and a second gear set having a second planetary gear carrier, a first motor/generator coupled to the first gear set, and a second motor/generator electrically coupled to the first motor/generator with a bus, coupled to the second gear set, and selectively coupled to the engine. The first gear set is coupled to the engine, and the first planetary gear carrier and the second planetary gear carrier are rotatably coupled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.