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:
May. 24, 2016
Filed:
Jun. 06, 2012
Mariko Mizuochi, Hitachinaka, JP;
Akinori Ishii, Ushiku, JP;
Jinichi Yamaguchi, Hino, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
To provide a work machine with high stability in which a dynamic balance can be evaluated easily while the influence of a sudden stop of an travel base, an upperstructure and a work front is taken into consideration. A stabilization control calculation unit () and a command value generating unit () are provided in a control device () of the work machine. The stabilization control calculation unit () uses a sudden stop model and position information of each movable portion of the travel base and a machine body including the work front () to predict a change of stability until reaching a complete stop when a control lever () in an operating state is instantaneously brought back to a stop command position, and calculates a motion limit needed to prevent destabilization from occurring at any time instant until reaching the stop. The command value generating unit () corrects the command information to a drive actuator on the basis of the calculation result of the stabilization control calculation unit ().