Full-time transfer case with mode shift arrangement
US6071207A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1997 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Aug 11, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/3465
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transfer case is disclosed for a four-wheel drive vehicle. The transfer case includes an interaxle differential and a transfer clutch for controlling speed differentiation and torque biasing across the interaxle differential. A mode shift mechanism is provided for selectively coupling one or more components of the interaxle differential to the input shaft for establishing a full-time four-wheel drive mode, a locked four-wheel drive mode, and a Neutral mode. A controller controls actuation of the transfer clutch and the mode shift mechanism in response to a mode signal indicating which drive mode has been selected by the vehicle operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.