HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE AND CONTROL METHOD THEREOF

The present invention relates to a hydraulic system of a construction machine and a control method thereof. The hydraulic system of a construction machine includes: a plurality of pressure controlling hydraulic pumps which are driven by an engine arranged in the construction machine; an actuator whi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHO, YONG LAK, THO, YONG HO, JUNG, WOO YONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a hydraulic system of a construction machine and a control method thereof. The hydraulic system of a construction machine includes: a plurality of pressure controlling hydraulic pumps which are driven by an engine arranged in the construction machine; an actuator which is driven by a driving fluid discharged from the hydraulic pumps; a closed center type main control valve which is arranged between the hydraulic pumps and the actuator and bypasses a supposed amount of the fluid; and a control unit which receives the supposed amount of the fluid bypassed through the main control valve to control the hydraulic pumps.