Speed sensor ring for vehicle anti-lock brake system
US5476272A · kind A · utility
30Cited by
16References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1994 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Jan 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/443
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An anti-lock brake system includes a relatively low cost, toothed ring for sensing vehicle speed. The toothed ring can be molded out of an elastomeric material containing finely divided particulates that are magnetically permeable. The molded, toothed ring includes magnetically permeable projecting teeth which magnetically interact with a magnetic field generated in a speed sensor to provide a pulsating voltage related to vehicle wheel speed. The toothed ring can be an integral part of an oil seal or wear sleeve positioned between a vehicle axle and wheel hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.