Brake control system for an automotive vehicle
US4384330A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1980 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Oct 8, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S303/05
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is a brake control system for an automotive vehicle for controlling application and release of brake pressure in order to prevent the vehicle from skidding. The system includes a sensing circuit for determining wheel r.p.m., a deceleration detecting circuit for determining a deceleration rate of the wheel r.p.m. and generating a signal when the determined deceleration rate becomes equal to or greater than a predetermined value, a target wheel speed circuit for determining a target wheel r.p.m. based on the wheel r.p.m. and operative responsive to detection of a peak of the coefficient of friction between the vehicle wheel and the road, and a control circuit for controlling application and release of brake fluid pressure to wheel cylinders for controlling the wheel deceleration rate. The target wheel speed circuit is operative to determine a rate of deceleration of wheel r.p.m. based on the difference in wheel r.p.m. between the time of detecting the peak coefficient of friction and the time of detecting the immediately preceding peak. The target wheel r.p.m. is further based on the length of time between detection of the peaks and is determined by subtracting a decelerati…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.