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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 9739036 B1

PDFFull Text
Date of Patent:
Aug. 22, 2017

Filed:

Nov. 20, 2013

Automatic control system and method for joystick control-based construction equipment

Applicant:

Hyundai Heavy Industries Co., Ltd., Dong-gu, KR;

Inventors:

Jong Chan Lee, Seongnam-si, KR;

Lim Gook Choi, Busan, KR;

Young Min Kwon, Yongin-si, KR;

Jong Hyung Yim, Yongin-si, KR;

Assignee:

Hyundai Construction Equipment Co., Ltd., Seoul, KR;

Attorney:

Ladas & Parry, LLP

Primary Examiner:

Richard Goldman

Int. Cl.
CPC ...
F15B 15/00 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); F15B 11/00 (2006.01); E02F 3/42 (2006.01); F15B 11/16 (2006.01); F15B 13/08 (2006.01); F15B 21/02 (2006.01); E02F 3/43 (2006.01); E02F 9/26 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2025 (2013.01); E02F 3/42 (2013.01); E02F 3/434 (2013.01); E02F 3/437 (2013.01); E02F 9/2004 (2013.01); E02F 9/2203 (2013.01); E02F 9/2228 (2013.01); E02F 9/2267 (2013.01); E02F 9/2289 (2013.01); E02F 9/2296 (2013.01); E02F 9/265 (2013.01); F15B 11/006 (2013.01); F15B 11/161 (2013.01); F15B 13/085 (2013.01); F15B 13/086 (2013.01); F15B 21/02 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/30575 (2013.01); F15B 2211/327 (2013.01); F15B 2211/6346 (2013.01); F15B 2211/75 (2013.01);
Abstract

According to the present invention, a hydraulic system of construction equipment is implemented as a close center system, which converts an input signal of an electric or hydraulic joystick into a speed signal of a work apparatus, and controls a speed of the work apparatus regardless of an external load condition, thereby minimizing fatigue of a worker to improve work efficiency, improving a work apparatus operation ability of an unskilled person, and patterning standardized work to implement automation of construction equipment.

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