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:
Nov. 15, 2016

Filed:

May. 31, 2013
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Kentaro Murakami, Chigasaki, JP;

Tadashi Kawaguchi, Hiratsuka, JP;

Assignee:

Komatsu Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 13/01 (2006.01); F15B 21/08 (2006.01); F02D 29/04 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); F15B 13/14 (2006.01);
U.S. Cl.
CPC ...
F15B 13/01 (2013.01); E02F 9/2012 (2013.01); E02F 9/2066 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F02D 29/04 (2013.01); F15B 13/14 (2013.01); F15B 21/08 (2013.01); F15B 21/082 (2013.01); F15B 21/087 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/40 (2013.01); F15B 2211/63 (2013.01); F15B 2211/633 (2013.01); F15B 2211/6309 (2013.01); F15B 2211/6333 (2013.01); F15B 2211/6346 (2013.01); F15B 2211/6651 (2013.01); F15B 2211/6658 (2013.01); F15B 2211/72 (2013.01); F15B 2211/75 (2013.01);
Abstract

The present invention includes an information generator to set a lever manipulation amount total sum decrease flag during a period when a lever manipulation amount total sum is decreasing, a first processor to process an engine actual output, an engine actual output latching function block to output the maximum value of the engine actual output until the present during a period in which a lever manipulation amount total sum decrease flag is not set, and output the present engine actual output during a period in which the flag is set, a second processor to output an engine target output based on the engine output, and a controller to control the engine speed under limitation of the engine target output.


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