CONTROL SYSTEM FOR CONSTRUCTION MACHINE

Title:

CONTROL SYSTEM FOR CONSTRUCTION MACHINE

Document Type and Number:

WIPO Patent Application WO/2017/002510

Kind Code:

A1

Abstract:

This control system (100) for a construction machine is provided with: fluid pressure pumps (51, 52); a fluid pressure actuator (30) provided with a load-side pressure chamber (30a) and an anti-load-side pressure chamber (30b); an operation valve (17) which, when a pilot pressure is introduced into a pilot chamber (17b) on the basis of an operation by an operator, is switched such that a working oil is supplied to the anti-load-side pressure chamber (30b), and the working oil is discharged from the load-side pressure chamber (30a); a regeneration-flow-rate control valve (32) which, when a pilot pressure is introduced into a pilot chamber (32a), is switched such that a portion of the working oil discharged from the load-side pressure chamber (30a) is introduced into the anti-load-side pressure chamber (30b); a pilot communication flow path (64) which allows communication between pilot chamber (17b) and pilot chamber (32a); and a switching valve (65) which switches the pilot communication flow path (64) between a communication state and a shut-off state.

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Inventors:

EGAWA MASAHIRO (JP)
KAWASAKI HARUHIKO (JP)

Application Number:

PCT/JP2016/066142

Publication Date:

January 05, 2017

Filing Date:

June 01, 2016

Export Citation:

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Assignee:

KYB CORP (JP)

International Classes:

F15B21/14; E02F9/20; E02F9/22; F15B11/024

Foreign References:

JP2002206510A	2002-07-26
JP2013053498A	2013-03-21
JP2011179541A	2011-09-15
JP2014118985A	2014-06-30

Other References: