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:
Sep. 30, 2025
Filed:
Oct. 19, 2021
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
A construction machine includes an angle measuring apparatus that sense acceleration and angular velocities of installation portions on a machine body and a work implement and that compute angles of the installation portions relative to a reference plane based on sensing results, and a controller that executes operation assistance of a work implement based on postural information on the machine body and the work implement computed on the basis of the angles from the angle measuring apparatus. The controller computes second required accuracy of angle computation by the angle measuring apparatus on the basis of first required accuracy set for the operation assistance, determines whether the state of the machine body has changed from an active state to a stopped state on the basis of the sensing results of the angle measuring apparatus, determines whether the computation accuracy of the angle measuring apparatus satisfies the second required accuracy, and stops the operation assistance of the work implement or gives a warning in a case where the state of the machine body has changed to a stopped state, and where the computation accuracy fails to satisfy the second required accuracy.