CONTROL DEVICE FOR CONSTRUCTION MACHINE

WIPO Patent Application WO/2017/090465

A1

Provided is a control device for a construction machine with which it is possible to stop an upper rotation body at a desired rotation stop angle. A main controller is provided with: a rotation stop desired-angle-setting unit for setting a rotation stop desired-angle-signal which is a desired angle for stopping rotation of the upper rotation body; a rotation control unit for outputting a drive command to a control valve, and reducing the speed of the rotation of the upper rotation body; a rotation stop possibility determination unit for reading an angle signal, detected by a first angle detector, of the upper rotation body in relation to a lower travel body, and an angle signal, detected by a second angle detector, of a work device, and determining whether it is possible to stop the rotation of the upper rotation body at a rotation stop desired angle; and a work device control unit for outputting a drive command signal to the control valve in accordance with the rotation stop possibility signal determined by the rotation stop possibility determination unit, so that an extension operation of the work device in the rotation radius direction is prevented, or so that a contraction operation of the work device in the rotation radius direction is performed.

MORIKI HIDEKAZU (JP)
SAKAMOTO HIROSHI (JP)
TSURUGA YASUTAKA (JP)
OSAKA TADASHI (JP)
NARIKAWA RYU (JP)

PCT/JP2016/083518

June 01, 2017

November 11, 2016

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HITACHI CONSTRUCTION MACH CO (JP)

E02F9/22; B66C23/86; F15B11/04

JP2010076904A	2010-04-08
JP2010247968A	2010-11-04
JP2013535593A	2013-09-12
JPS6355222A	1988-03-09
JPS6370722A	1988-03-30
JP2012021290A	2012-02-02

See also references of EP 3382107A4

KAICHI IP (JP)

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