Friction coefficient measurement from a moving vehicle
US4315426A · kind A · utility
22Cited by
2References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jan 10, 1980 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | Jan 10, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N19/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and methods are disclosed for detecting slippery road conditions directly from a moving vehicle. A special probe is momentarily lowered to the road surface from the moving vehicle. A coefficient of friction is determined by ratio of the verticle and friction forces. A display provides the operator with a proper indication of roadway conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.