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Patent Searching and Data


Title:
POSITION CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/221225
Kind Code:
A1
Abstract:
This position control apparatus, which outputs, to a control valve of a hydraulic actuator that changes an operation position of an object, a driving signal to perform a position control, is provided with: a position acquisition device which acquires a real value of an operation position of the object; a position controller which calculates an operation instruction value for the control value by means of a closed loop control which decreases a difference between the real value and a target value of the operation position of the object; and a vibration wave imparter which imparts, on a signal of the closed loop control, a vibration wave so that the operation instruction value vibrates at a prescribed frequency, when the closed loop control is started.

Inventors:
MATSUDA KIPPEI
KOBAYASHI SHUMA
OOTSUKI SATOSHI
NAKASHIMA KENICHI
IMAI HIDEYUKI
ABE AKIHITO
Application Number:
PCT/JP2018/018952
Publication Date:
December 06, 2018
Filing Date:
May 16, 2018
Export Citation:
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Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
G05D3/12; F16H61/02; F16H61/664
Domestic Patent References:
WO2011074062A12011-06-23
Foreign References:
JP2007292001A2007-11-08
JP4495117B22010-06-30
JP4495117B22010-06-30
Other References:
See also references of EP 3633485A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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