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:
Jan. 24, 2017

Filed:

Feb. 05, 2015
Applicant:

Deere & Company, Moline, IL (US);

Inventors:

Scott S. Hendron, Dubuque, IA (US);

Chris J. McDonald, Dubuque, IA (US);

Bryan Rausch, Durango, IA (US);

Travis Wiens, Saskatoon, CA;

Jeff Dobchuk, Saskatoon, CA;

Assignee:

DEERE & COMPANY, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/84 (2006.01); E02F 3/76 (2006.01);
U.S. Cl.
CPC ...
E02F 3/844 (2013.01); E02F 3/7618 (2013.01);
Abstract

A work vehicle may include a chassis, a ground-engaging blade, a sensor, and a controller. The ground-engaging blade may be movably connected to the chassis via a linkage configured to allow the blade to be raised or lowered relative to the chassis. The sensor may be connected to the chassis at a fixed relative position to the chassis and configured to provide a pitch signal indicative of a rotational velocity in a pitch direction. The controller may be configured to receive the pitch signal and send a command to raise or lower the blade, the command based on a first gain and the pitch signal when the pitch signal indicates a rotational velocity in a first direction and based on a second gain and the pitch signal when the pitch signal indicates a rotational velocity in a second direction.


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