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:
Jun. 09, 2015

Filed:

Sep. 05, 2013
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Amit Sharma, Peoria, IL (US);

Eric C. Hughes, Metamora, IL (US);

Steven C. Budde, Dunlap, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 6/00 (2006.01); B62D 11/02 (2006.01); B62D 57/00 (2006.01); E02F 9/20 (2006.01); E02F 9/08 (2006.01); E02F 3/76 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2087 (2013.01); E02F 9/0841 (2013.01); E02F 3/7663 (2013.01); B62D 57/00 (2013.01); B62D 11/02 (2013.01);
Abstract

An apparatus and method are provided for operating a motor grader having steerable front wheels and a front and rear frame pivotally connected at an articulation joint. The method includes selecting an automatic articulation mode, and commanding front wheel steering to turn the motor grader, providing a plurality of front wheel steering corrections to an electronic controller, filtering the plurality of front wheel steering corrections using a method for filtering steering corrections based on the constant curve mode, wherein the method generates filtered front wheel steering corrections, and automatically commanding articulation of the front frame relative to the rear frame about the articulation joint in response to the filtered front wheel steering corrections.


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