Wheel toe and camber measurement system
US9019488B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2013 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2210/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring wheel alignment of a test wheel rotating about a z-axis using at least one camera and a processor includes obtaining a calibration point from a calibration image of a zero-offset wheel that is the same size as the test wheel and that rotates about the z-axis, obtaining at least one test image of the test wheel with the camera and a non-structured light source, and locating a measurement point in the test image. The measurement point coincides with a radius that the calibration point is offset from the z-axis and the angular displacement of the calibration point from the vertical diameter of the zero-offset wheel. The measurement point is further located based on a change of reflectivity between other points in the test image adjacent the measurement point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.