Method and apparatus for controlling the speed of an engine within a hybrid electric vehicle
US6877575B2 · kind B2 · utility
6Cited by
23References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Apr 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/946
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid electric vehicle drive system or transaxle 10 including an internal combustion engine 12, a generator/motor 14 which is coupled to engine 12 by use of a planetary gear set 20, and an electric motor 16. Drive system 10 includes a brake or clutch assembly 34 which is operatively and selectively coupled to a generator/motor 14 and is effective to supplement the generator-produced reaction torque, thereby cooperating with the generator/motor 14 to control the speed of engine 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.