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:
May. 26, 2026

Filed:

Jul. 16, 2024
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Kohei Nagao, Sakai, JP;

Ryota Hamamoto, Sakai, JP;

Daiki Abe, Sakai, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); E02F 9/20 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2203 (2013.01); E02F 9/2004 (2013.01); E02F 9/2235 (2013.01); E02F 9/2253 (2013.01);
Abstract

A work vehicle includes a human-machine interface configured to receive an input corresponding to a target rotation speed of a hydraulic motor. A rotation speed sensor is configured to detect a rotation speed of the hydraulic motor. A hydraulic control circuit is configured to control a hydraulic pressure of pilot oil to change a displacement volume of the hydraulic pump. Circuitry is configured to control a prime mover and the hydraulic control circuit. The circuitry is configured to obtain based on the target rotation speed, a reference value of a control parameter according to which the hydraulic control circuit is controlled, calculate a speed difference obtained by subtracting the target rotation speed from the rotation speed, calculate an offset value corresponding to the speed difference, and set the control parameter to a value obtained by adding the offset value to the reference value.


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