James E Harrell

US Patent:

20200158501, May 21, 2020

Filed:

Jan 14, 2020

Appl. No.:

16/742241

Inventors:

James Rodney Harrell - Greenbrier AR, US
David A. Jackson - Point Roberts WA, US
George M. Gill - Conway AR, US
Brian K. Gray - Conway AR, US

International Classification:

G01B 11/275
G07C 5/08
G06K 9/00
G01B 11/14
B60R 1/00
G06T 7/73

Abstract:

Methods and systems measure a vehicle body parameter; e.g., a wheel alignment parameter such as ride height. Embodiments include a system having a target attachable to a vehicle body, and an image sensor for viewing the target and capturing image data thereof. A processor processes the image data, determines an initial spatial position of the target based on the processed image data, compares the initial spatial position of the target with a reference position, and prompts a user to align the target to an adjusted spatial position when the initial spatial position differs from the reference position more than a threshold amount. The vehicle body parameter value is determined based on the target's adjusted spatial position. In certain embodiments, the adjusted spatial position differs from the reference position by a position error value, and the processor mathematically corrects the vehicle body parameter value based on the position error value.