Title:
弁の不感領域判別方法
Document Type and Number:
Japanese Patent JP2011522174
Kind Code:
A
Abstract:
The invention relates to a method for determining the dead zone of a proportional control valve (8) used for controlling an actuator of a rock drilling device, the method comprising controlling the control valve (8) with an electric P controller (12) and measuring the position of the actuator in a coordinate system representing its movement with a separate position detector. The dead zone is determined by means of a product of the P controller of the control valve (8) and the difference value.
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Inventors:
Puula, Yussi
Saarella, Marx
Saarella, Marx
Application Number:
JP2011508960A
Publication Date:
July 28, 2011
Filing Date:
May 11, 2009
Export Citation:
Assignee:
SANDVIK MINING AND CONSTRUCTION OY
International Classes:
F15B9/09; E21B44/00
Domestic Patent References:
| JPS6415507A | 1989-01-19 | |||
| JPH10288203A | 1998-10-27 | |||
| JPS6415507A | 1989-01-19 |
Attorney, Agent or Firm:
Takao Katori