Skid control system
US3944289A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1974 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Mar 25, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/17613
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anti-skid control system for vehicle brakes which is much simpler and of lower cost than prior art systems and yet provides substantially the same anti-skid brake control. The system includes a frequency-voltage converter to produce a voltage signal indicative of wheel speed which is utilized as an input to a deceleration rate detector and an acceleration differentiator connected in parallel. The acceleration differentiator provides control signals to the deceleration rate detector to set threshold values therefor. When both the deceleration rate detector and the acceleration differentiator produce output signals of proper type to an AND gate, the system deactivates the normal braking system for the vehicle to avoid a potential skid condition. The system includes an override for applying brakes when an acceleration exceeds a predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.