Method and system for antilock braking on a deformable surface
US5642920A · kind A · utility
3Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1996 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Jul 12, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/172
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake pressure controller, responsive to a wheel speed sensor and coupled to a brake, performs a cyclic control of pressure applied to the brake. A brake pressure cycle includes a pressure apply stage and a pressure dump stage having activation conditions based upon a slip threshold parameter. A predetermined base threshold quantity is modified in dependence upon a measured time duration of the pressure dump stage and/or a slip depth error quantity so that a greater amount of slip is added to the base slip threshold when braking on a deformable surface than when braking on a non-deformable surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.