Title:
DRIVE CONTROL DEVICE OF CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/168686
Kind Code:
A1
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.
Inventors:
MORITA YUUICHIROU (JP)
EDAMURA MANABU (JP)
ISHIKAWA KOUJI (JP)
EDAMURA MANABU (JP)
ISHIKAWA KOUJI (JP)
Application Number:
PCT/JP2016/060688
Publication Date:
October 05, 2017
Filing Date:
March 31, 2016
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F9/22; E02F9/20
Foreign References:
| JP2012017626A | 2012-01-26 | |||
| JP2006104836A | 2006-04-20 | |||
| JP2004239303A | 2004-08-26 | |||
| JP2012172467A | 2012-09-10 | |||
| JP2013167098A | 2013-08-29 | |||
| JP2013147886A | 2013-08-01 | |||
| JP2013163959A | 2013-08-22 |
Other References:
See also references of EP 3438353A4
Attorney, Agent or Firm:
HIROSE Kazuhiko (JP)
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