Electronic odometer integrated into vehicle axle and wheel hub
US6646432B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1998 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Nov 4, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C2203/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An axle assembly includes an axle defining an axis, a wheel assembly rotatably supported on the axle for rotating relative to the axle axis, a magnet, a sensor responsive to the magnet for producing a count signal, and a microprocessor for receiving count signal data, calculating the distance the wheel assembly has traveled, and transmitting distance data to an output device. The sensor is mounted to rotate with the wheel assembly and the magnet is mounted to the axle, at a position eccentric to or radially offset from the axle axis. The sensor is mounted to the wheel assembly in radial alignment with the magnet such that rotation of the wheel assembly aligns the sensor for magnetic interaction with or responsiveness to the magnet once per revolution of the wheel assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.