WOLFRAM SYSTEM MODELER
PCVE63Electrically actuated proportional control valve with six ports and three states |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Hydraulic.Valves.DirectionalControl.ProportionalSolenoidActuation.PCVE63"]
Out[1]:=
Information
This is a model of a control valve with six ports and three states. The valve has a tank port t, a pressure port p, and four load ports a, b, c1, and c2. The insignals to the spools are u1 and u2. The valve is controlled by two electrical spools with dynamics; see SpoolP2Windings.
This valve is similar to PCVE43ClosedCenter; the only difference is that the two ports c1 and c2 are connected in the middle state.
This valve is similar to PCVE43ClosedCenter; the only difference is that the two ports c1 and c2 are connected in the middle state.
Implementation
This valve basically consists of orifices controlled by a spool.Parameters (9)
| medium |
Value: Oil() Type: Medium Description: Medium in the component |
|---|---|
| V |
Value: 0.0001 Type: Volume (m³) Description: Volume of control valve |
| Gleak |
Value: 1e-020 Type: PressureDependentLeakage (m³/(s⋅Pa)) Description: Leakage between orifices |
| overlap |
Value: 0 Type: Length (m) Description: Spool overlap, a number between -1 and 1; 0 if no overlap |
| AMax |
Value: 0.001 Type: Area (m²) Description: Maximum opening area |
| Cd |
Value: 0.62 Type: Real Description: Coefficient of discharge for the opening |
| Un |
Value: 1 Type: Voltage (V) Description: Spool nominal voltage |
| d |
Value: 0.9 Type: Damping (s⁻¹) Description: Spool damping |
| f |
Value: 80 Type: Frequency (Hz) Description: Spool resonance frequency |
Connectors (8)
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port_p |
Type: Port_a Description: Port for hydraulic fluid (filled icon) |
|---|---|---|
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port_t |
Type: Port_a Description: Port for hydraulic fluid (filled icon) |
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port_b |
Type: Port_b Description: Port for hydraulic fluid (unfilled icon) |
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port_a |
Type: Port_b Description: Port for hydraulic fluid (unfilled icon) |
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port_c1 |
Type: Port_a Description: Port for hydraulic fluid (filled icon) |
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port_c2 |
Type: Port_b Description: Port for hydraulic fluid (unfilled icon) |
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u1 |
Type: RealInput Description: 'input Real' as connector |
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u2 |
Type: RealInput Description: 'input Real' as connector |
Components (13)
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medium |
Type: Medium Description: Medium in the component |
|---|---|---|
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volume_a |
Type: Volume Description: Fixed volume with fluid storage |
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volume_b |
Type: Volume Description: Fixed volume with fluid storage |
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volume_t |
Type: Volume Description: Fixed volume with fluid storage |
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volume_p |
Type: Volume Description: Fixed volume with fluid storage |
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rightState |
Type: CrossOver4Port Description: Basic building block for directional control valves |
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leftState |
Type: Straight4Port Description: Basic building block for directional control valves |
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middleState |
Type: ControlledOrifice Description: Controlled restriction |
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abs1 |
Type: Abs Description: Output the absolute value of the input |
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add1 |
Type: Add Description: Output the sum of the two inputs |
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const |
Type: Constant Description: Generate constant signal of type Real |
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spool |
Type: SpoolP2Windings Description: An electrical spool with second-order characteristics |
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add |
Type: Add Description: Output the sum of the two inputs |
Used in Examples (1)
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Hydraulic.Examples.Rotation Example circuit with a pump that unloads to a reservoir when inactive |