The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2002
Filed:
May. 25, 2001
David L. Kellogg, Greene, NY (US);
The Raymond Corporation, Greene, NY (US);
Abstract
The present invention is a method and apparatus for controlling a steer center position of an automatic guided vehicle (AGV) of the type that follows a wire. As the automatic vehicle follows a wire, the distance of the AGV from the wire is monitored over a given distance, and an average distance from wire calculated. This value is used to determine a steer center position adjustment, which adjusts the steer center position to maintain the AGV within a predetermined distance of the wire or other path. The present invention is useful in accounting for variations between AGV's based on mechanical linkages and manufacturing differences; differences in steer center position when an AGV is driven in a forward or reverse direction; and changes due to environmental conditions.