Title:
WORK MACHINE
Document Type and Number:
Japanese Patent JP2020051141
Kind Code:
A
Abstract:
To accurately calculate a total moment of inertia of an upper structure, an attachment and a transportation object in a state where an upper structure is revolved.SOLUTION: A controller (40) calculates an assumed revolving acceleration αassume based on an assumed moment of inertia Iassume and a detected revolving torque Treal detected by a revolving torque detection portion (24) in revolving acceleration of an upper structure 13 with respect to a lower structure 11 (step S42). The controller (40) calculates a total moment of inertia Ireal based on a ratio of a detected revolving acceleration αreal to the assumed revolving acceleration αassume and the assumed moment of inertia Iassume (step S45).SELECTED DRAWING: Figure 5
Inventors:
KAMIMURA YUSUKE
YAMASHITA KOJI
YAMAZAKI YOICHIRO
YAMASHITA KOJI
YAMAZAKI YOICHIRO
Application Number:
JP2018182328A
Publication Date:
April 02, 2020
Filing Date:
September 27, 2018
Export Citation:
Assignee:
KOBELCO CONTSTRUCTION MACHINERY LTD
International Classes:
E02F9/20
Domestic Patent References:
| JP2005016228A | 2005-01-20 | |||
| JP2010095906A | 2010-04-30 | |||
| JP2018044414A | 2018-03-22 | |||
| JP2017096006A | 2017-06-01 | |||
| JP2018145678A | 2018-09-20 |
Foreign References:
| US20070277986A1 | 2007-12-06 |
Attorney, Agent or Firm:
Kaji/Suhara Patent Office