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:
Dec. 05, 2017

Filed:

Nov. 19, 2015
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Yoshiro Iwasaki, Naka-gun, JP;

Masashi Ichihara, Hiratsuka, JP;

Assignee:

Komatsu Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/70 (2006.01); G06F 19/00 (2011.01); G06G 7/00 (2006.01); G06G 7/76 (2006.01); E02F 9/22 (2006.01); E02F 9/26 (2006.01); E02F 9/18 (2006.01); E02F 3/32 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2267 (2013.01); E02F 9/18 (2013.01); E02F 9/265 (2013.01); E02F 3/32 (2013.01); G05B 2219/45012 (2013.01);
Abstract

A control method for a work machine, includes: detecting a posture of a working unit driven by a hydraulic cylinder in a movable range; determining whether the working unit at a stop position of the movable range has started moving based on an operation of the working unit; setting a deceleration section including an end position of the movable range and a deceleration ratio of the working unit in the deceleration section, based on the posture of the working unit in a stopped state at the stop position, and a threshold determined in advance; and outputting a command signal to a control valve, which is capable of adjusting an amount of a working oil supplied to the hydraulic cylinder, such that the working unit moves from the stop position to the end position based on the deceleration section and the deceleration ratio.


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