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:
Oct. 01, 2024
Filed:
Mar. 17, 2021
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Mikio Bando, Chiyoda-ku, JP;
Shinichi Uotsu, Tsuchiura, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
The present disclosure provides a work vehicle that allows detecting an error in an installation position of an antenna more flexibly than a conventional device. The work vehicle includes a control device. The control devicehas a detection function F, a calculation function F, a calculation function F, a calculation function F, and an estimation function F. The detection function Fdetects steady traveling based on a velocity, an acceleration, and an angular velocity of a vehicle. The calculation function Fcalculates a first vehicle direction based on installation information of a first antenna and a second antenna with respect to the vehicle. The calculation function Fcalculates a second vehicle direction based on a time change of position information of the first antenna when the steady traveling is detected. The calculation function Fcalculates a direction correction parameter for correcting the first vehicle direction based on the second vehicle direction. The estimation function Festimates a location and a posture of the vehicle based on the direction correction parameter and the first vehicle direction.