Auxiliary electric drive assembly
US7497286B2 · kind B2 · utility
38Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Jul 29, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An auxiliary electric drive assembly includes an alternating current induction motor, planetary speed reduction gearing and a differential. The differential may be either active or passive. The auxiliary drive system is utilized as the front axle in a rear wheel drive vehicle and the rear axle in a front wheel drive vehicle. Elimination of many of the components in a conventional four wheel drive system such as the transfer case and hybrid gears improves the overall efficiency and fuel economy of a vehicle so equipped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.