Drive system
US4646896A · kind A · utility
12Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1984 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Aug 23, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/946
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A propulsion system for a vehicle provides for a drive shaft to be powered by an electric motor or an internal combustion engine, the motor being permanently coupled to the drive shaft and the engine engageable with the shaft by a clutch. Engine speed is matched with that of the drive shaft before engagement of the clutch by electrically loading the engine, preferably by coupling a generator to the engine and varying the generator field current. The clutch is automatically engaged when the speeds are equal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.