Hydraulic control system

Details Hydraulic control system Hydraulic control system

1991-01-14

1992-03-24

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Electrical input and feedback signal means

60390, 364180, 318590, F15B 1316

Patent

active

050977440

ABSTRACT:
A hydraulic control system is provided for regulating the slew rate of a servovalve driven actuator within design parameters despite widely varying load conditions. The servovale flow is maintained constant in accord with the integration of the difference between a set slew rate command signal and a measured slew rate feedback signal. Where a plurality of such actuators are driven from a single hydraulic pump, this regulation of servovalve flow also enables the pump supply pressure to remain constant despite widely varying load conditions on the individual actuators in the system.

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