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.

Date of Patent:
Jul. 06, 1999

Filed:

Aug. 11, 1997
Applicant:
Inventors:

Zhejun Fan, Dunlap, IL (US);

Thomas J Kelly, Peoria, IL (US);

Frank Lombardi, Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
172-2 ; 172-45 ;
Abstract

The present invention provides a method for selecting a steering method for an earthmoving machine having a blade and first and second tracks. One embodiment of the present invention includes selecting a steering method based on the position error of the machine. In another embodiment of the present invention the steering method is selected based on the elevation of the work implement, and the position error.


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