Title:
VALVE APERTURE CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/124264
Kind Code:
A1
Abstract:
This valve aperture control system, which performs opening/closing control that opens/closes a valve to a desired aperture, uses an output time computation means (17) to determine on the basis of a valve opening/closing speed an output time for an open command or a close command until reaching a desired target aperture to which the valve aperture has been set, and during the output time, outputs the open command or close command to a valve drive motor (12) by means of an output means. At this time, when the measured aperture of the valve is input to an aperture control means (19) and the absolute vale of the difference between the measured aperture and the target aperture is within the range of a pre-set dead zone, the aperture control means causes the output means to stop the output of the open command or close command to the valve drive motor.
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Inventors:
KIMIJIMA KAZUHIKO
Application Number:
PCT/JP2012/001298
Publication Date:
September 20, 2012
Filing Date:
February 24, 2012
Export Citation:
Assignee:
TOSHIBA KK (JP)
KIMIJIMA KAZUHIKO
KIMIJIMA KAZUHIKO
International Classes:
G05D3/12; F16K31/04; G05D7/06
Foreign References:
| JPH0619556A | 1994-01-28 | |||
| JPH0314427U | 1991-02-14 | |||
| JPH058618U | 1993-02-05 |
Attorney, Agent or Firm:
SAGOI, MASAYUKI (JP)
Masayuki Sunai (JP)
Masayuki Sunai (JP)
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Claims: