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1. (WO2017168686) DRIVE CONTROL DEVICE OF CONSTRUCTION MACHINE

Pub. No.:    WO/2017/168686    International Application No.:    PCT/JP2016/060688
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Fri Apr 01 01:59:59 CEST 2016
IPC: E02F 9/20
E02F 9/22
Applicants: HITACHI CONSTRUCTION MACHINERY CO., LTD.
日立建機株式会社
Inventors: MORITA Yuuichirou
守田 雄一朗
EDAMURA Manabu
枝村 学
ISHIKAWA Kouji
石川 広二
Title: DRIVE CONTROL DEVICE OF CONSTRUCTION MACHINE
Abstract:
An area-limiting control unit (40), serving as a control means, outputs a requested boost pilot pressure (43) for driving a control valve (14A) on the basis of a pilot pressure (37) that corresponds to the manipulated variable of an operating lever (15A) and an orientation signal from an orientation sensor (31). A drive permission determination unit (48) determines, on the basis of the pilot pressure (37) that corresponds to the manipulated variable of the operating lever (15A), whether the driving of a hydraulic actuator (22) should be permitted. A pilot pressure selection unit (50) selects the requested boost pilot pressure (43) from the area-limiting control unit (40) so as to drive the control valve (14A) using the requested boost pilot pressure (43) for a hydraulic actuator (22) the driving of which is permitted, and not drive the control valve (14A) for a hydraulic actuator (22) the driving of which is not permitted.