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Patent Searching and Data


Title:
ACTUATOR CONTROL DEVICE
Document Type and Number:
Japanese Patent JPH10169603
Kind Code:
A
Abstract:

To automatically correct discrepancy of a return position generated in a control valve mechanism by an ambient temperature and an error of manufacture.

In a hydraulic cylinder 3, pressure oil from a hydraulic pressure source 1 is supplied/discharged through a spool valve 6, also a rod 3C is slide displaced. A spool 13 of the spool valve 6 is slide displaced by an electromagnetic actuator 16, it is controlled by a controller 17 comprising a proportional arithmetic circuit, integration arithmetic circuit, compensation arithmetic circuit, etc. In the controller 17, a target value setter 26 and a position detection sensor 27 detecting a position of the rod 3C are connected, the controller 17 feedback controls the hydraulic cylinder 3 so that a target value from the target value setter 26 and a detection value from the position detection sensor 27 are conformed.


Inventors:
Sato, Hiroshi
Application Number:
JP1996000352318
Publication Date:
June 23, 1998
Filing Date:
December 12, 1996
Export Citation:
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Assignee:
UNISIA JECS CORP
International Classes:
F01L13/00; F15B9/09; (IPC1-7): F15B9/09; F01L13/00
Attorney, Agent or Firm:
広瀬 和彦