Title:
FLUID PRESSURE SYNCHRONIZING CIRCUIT
Document Type and Number:
Japanese Patent JPS612907
Kind Code:
A
Abstract:
PURPOSE:To realize synchronous driving by reducing a valve opening command for a control valve when the total flow of all the control valves nearly exceeds the discharge quantity of a pump. CONSTITUTION:Output from a reaction force presumption instrument 31, which presumes reaction force of a fluid pressure actuator through detecting load displacement, is inputted to a flow presumption instrument 32, which presumes the total flow of all the control valves from the above-mentioned reaction force and a command of valve opening. When a presumed flow gets close to the discharge quantity of a pump, output from the flow presumption instrument 32 is inputted to a speed command modification instrument 33, which outputs a command for modifying the speed command, while output from this speed command modification instrument 33 is input to multipliers 34, 35. Thus, when the total flow of all the control valves nearly exceeds the discharge quantity of the pump, the total of flow of each control valve can be restrained through reducing the valve opening command to the control valves, therefore, each fluid pressure actuator can be driven synchronously.
Inventors:
OOYAGI SHIYUUJI
HOUZOUJI AKIRA
AKASAKA NORIYUKI
SAKAI KENJI
AOYANAGI MASAYA
HOUZOUJI AKIRA
AKASAKA NORIYUKI
SAKAI KENJI
AOYANAGI MASAYA
Application Number:
JP12375984A
Publication Date:
January 08, 1986
Filing Date:
June 18, 1984
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F15B11/12; F15B11/22; (IPC1-7): F15B11/22
Attorney, Agent or Firm:
Okamoto Shigefumi
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