Traction control system for use with four wheel drive vehicles having on-demand transfer cases
US5927426A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1996 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Oct 18, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/202
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A traction control system for a four wheel drive vehicle including generating a first value corresponding to an average rotational speed of front wheels, generating a second value corresponding to an average of a rotational speed of rear wheels, comparing the first and second values, and generating a first signal corresponding to a difference between the first and second values, are provided. The first signal is used for transferring torque to the secondary axle if the rear wheels are rotating faster than the front wheels. The system also generates a second signal corresponding to a difference in speed between a first axle shaft and a second axle shaft of the front axle. The second signal is used for transferring torque to the other of the front axle shafts if the one of the secondary axle shafts is rotating faster than the other of the front axle shafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.