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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.:

US 9732770 B1

PDFFull Text
Date of Patent:
Aug. 15, 2017

Filed:

Apr. 03, 2014

Drive control system of operating machine, operating machine including drive control system, and drive control method of operating machine

Applicant:

Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, Hyogo, JP;

Inventors:

Yoji Yudate, Kobe, JP;

Kazuya Iwabe, Kobe, JP;

Hideyasu Muraoka, Akashi, JP;

Assignee:

KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;

Attorney:

Oliff PLC

Primary Examiner:

Thomas E Lazo

Int. Cl.
CPC ...
F15B 15/08 (2006.01); E02F 9/12 (2006.01); E02F 9/22 (2006.01); F15B 11/028 (2006.01);
U.S. Cl.
CPC ...
F15B 15/088 (2013.01); E02F 9/123 (2013.01); E02F 9/2285 (2013.01); E02F 9/2296 (2013.01); F15B 11/028 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/6313 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/6652 (2013.01); F15B 2211/7058 (2013.01); F15B 2211/755 (2013.01);
Abstract

A drive control system of a hydraulic excavator includes a control device. When accelerating a turning body to a target turning speed, the drive control device controls an operation of the electric motor driving device such that the electric motor outputs high efficiency torque by which a highest electric power efficiency is obtained at the target turning speed. The control device controls an operation of an oil pressure supply device such that residual torque obtained by subtracting the high efficiency torque from target torque is output from an oil-pressure motor.

Find Patent Forward Citations

Yudate, Yoji. (2017). Drive control system of operating machine, operating machine including drive control system, and drive control method of operating machine (U.S. Patent No. 9732770). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9732770

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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