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.

Date of Patent:
Aug. 18, 2020

Filed:

Nov. 09, 2016
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Minetaka Nishimura, Tokyo, JP;

Yuki Shimano, Tokyo, JP;

Takuya Sonoda, Tokyo, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01G 19/14 (2006.01); E02F 9/26 (2006.01); E02F 3/32 (2006.01); G01P 15/16 (2013.01); G05B 13/04 (2006.01); E02F 3/42 (2006.01); G01G 19/08 (2006.01); E02F 9/22 (2006.01); E02F 3/43 (2006.01); G01P 3/487 (2006.01);
U.S. Cl.
CPC ...
E02F 9/26 (2013.01); E02F 3/32 (2013.01); E02F 3/425 (2013.01); E02F 3/435 (2013.01); E02F 9/2271 (2013.01); E02F 9/264 (2013.01); G01G 19/083 (2013.01); G01P 15/16 (2013.01); G05B 13/042 (2013.01); G01P 3/487 (2013.01);
Abstract

A hydraulic excavator has a boom, an arm, a bucket, and a boom cylinder which drives the boom. A load value within the bucket is computed based on a load of the boom cylinder, and the load value obtained by computing is corrected based on an acceleration of extension/retraction of the boom cylinder.


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