MapleSim Hydraulics Library from Modelon
Coils_X_2 — Coil of a two-position directional control valve with first-order spool dynamics
The Coils_X_2 component describes the spool position of a directional control valve that has one coil.
The commanded opening of the valve is input at commandB. The position of the spool (spoolPos) is modeled as a first-order system.
When commandB=false, then spoolPos=0.
When commandB=true, then spoolPos=1.
Intermediate spool positions are also modeled.
The movement of the spool is described by a first-order system. This is appropriate for valves that are directly actuated by a spool. The time to shift from the neutral position to an end position (τopening) may be different than the time to shift to the neutral position (τclosing).
Command signal for valve
Switching time to open valve 95%
Switching time to close valve 95%
MapleSim Hydraulics Library from Modelon Overview
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