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:
Feb. 24, 2026
Filed:
Dec. 19, 2023
Kubota Corporation, Osaka, JP;
Kohei Okura, Sakai, JP;
Junichi Yuasa, Sakai, JP;
KUBOTA CORPORATION, Osaka, JP;
Abstract
A work vehicle includes a positioning system to output first chronological data, an inertial measurement system to output second chronological data based on measurement values from an acceleration sensor and an angular velocity sensor, and a controller to, in a first state when positioning by the positioning system is possible, consecutively estimate a first azimuth angle based on the first and second chronological data, consecutively estimate a second azimuth angle based on the second chronological data, calculate a rate of change in azimuth error of the second azimuth angle based on a difference between the consecutively-estimated first and second azimuth angles in the first state, and, in a second state associated with a decreased reliability of positioning, perform steering control based on an azimuth angle resulting from causing the second azimuth angle estimated based on the second chronological data to be corrected based on the rate of change in azimuth error.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile