Anti-skid brake control system
US5141294A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1989 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Sep 22, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/17636
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anti-skid brake control system for a motor vehicle includes at least one sensor for determining the deceleration V.sub.R of a vehicle wheel, a device for determining the deceleration V.sub.F of the vehicle, a device for determining the difference D of the vehicle and wheel decelerations (D=V.sub.F -V.sub.R), a control circuit responsive to the difference D for producing brake pressure control signals, and a brake pressure control device for increasing and decreasing the given brake pressure in response to the control signals from the control circuit. The difference D is also supplied to a ladder filter. During phases in which brake pressure is maintained at a constant level, the ladder filter is switched to identification by the control circuit and determines a reflection coefficient. The control signals then affect the brake pressure so as to select a slippage value on a stable branch of the .mu. slippage curve and near its maximum is derived from the distance of the reflection coefficient from the value "1".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.