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:
Jan. 04, 2022
Filed:
Aug. 30, 2018
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Yousuke Yamanobe, Ushiku, JP;
Kazunori Hoshino, Tsukuba, JP;
Satoshi Nakamura, Hitachinaka, JP;
Youhei Toriyama, Kashiwa-ku, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
A load value W, which is a weight of a transportation target carried by a front work implement, is calculated based on a work load of a boom cylinderof the front work implement, and on posture information which is information associated with a posture of the front work implement. A load threshold T used for determining whether to recalibrate a load measuring system is changed in accordance with a posture index value which is an index associated with the posture of the front work implementand is obtained based on the posture information. Whether to recalibrate the load measuring system is determined based on the load value W and the load threshold T. A determination result is displayed on a display screento notify an operator of the determination result. In this manner, deterioration of measuring accuracy is more appropriately detectable regardless of variations of a posture of a front work implement of a work machine.