Hydraulic system having priority based flow control

Details Hydraulic system having priority based flow control Hydraulic system having priority based flow control

2006-12-12

2006-12-12

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

C060S459000

Reexamination Certificate

active

07146808

ABSTRACT:
A hydraulic system has a source, a plurality of fluid actuators, and a controller. The controller is configured to receive an input indicative of which of the plurality of fluid actuators are a first and a second type of fluid actuator, to receive an input indicative of a desired flow rate for the plurality of fluid actuators, and to determine a current flow rate of the source. The controller is further configured to demand the desired flow rate for the first type of fluid actuator and to demand a scaled down desired flow rate for the second type of fluid actuator when a total desired flow rate exceeds the current flow rate of the source, and to demand a scaled down desired flow rate for all of the plurality of fluid actuators when the desired flow rate for the first type of fluid actuator exceeds the current flow rate of the source.

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