Transfer case cold shift assist
US5105900A · kind A · utility
12Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Dec 7, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K23/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention provides a motor vehicle cold shift assist system for selectively and automatically connecting the non-driven wheels to its associated axle drive mechanism under certain operational and temperature conditions for counteracting the inertial loading acting on the transfer case synchronizer clutch mechanism. The present invention substantially reduces the shift resistance encountered upon the vehicle operator subsequently shifting into the four-wheel drive mode during cold weather conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.