Patent ID: 6823246
Filing Date: 2004-11-23
Classification: G01B

Abstract:
A method of determining alignment between the wheels of a vehicle using a position determination system that indicates wheel positions on the vehicle with targets, the method comprising the steps of:imaging the targets to obtain locations of the wheel positions; calculating the length of a right wheel base, the right wheel base being defined as the distance of a line passing adjacent a first right wheel and perpendicularly from the wheel track passing through the first right wheel to the wheel track passing through a second right wheel; calculating the length of a left wheel base, the left wheel base being defined as the distance of a line passing adjacent a first left wheel and perpendicularly from the wheel track passing through the first left wheel to the wheel track passing through a second left wheel; and determining an alignment status by comparing the length of the right wheel base to a specified range for the right wheel base and comparing the length the left wheel base to a specified range for the left wheel base.