Method and equipment for acquisition of geometric data concerning the parallelism of the front wheels of vehicle, comprises bay equipped with projectors of parallel light rays and matrix cameras

摘要

The vehicle enters a bay which has wheel tracks (1, 2) and wheel locating plates (4). Light sources (5-8) project parallel beams of light (9) on to the sides of the wheels (13) giving points of intersection (15) with the wheel rims (12). Matrix type cameras (10,11,) take pictures just before the rest position on the wheel locating plates and again when the vehicle is at rest. A processor calculates the wheel and driving planes and the required corrections An Independent claim is made for the bay and equipment using the method.