A320-family/Systems/a320-hydraulic.xml

<?xml version="1.0"?>

<!-- Copyright (c) 2019 Jonathan Redpath (legoboyvdlp), Joshua Davidson (Octal450) -->

<system name="A320: Hydraulic">	
	
	<property value="500">/systems/hydraulic/sys-incr-rate</property> <!-- 2 seconds per 1000 psi -->
	
	<channel name="Reservoir Quantity" execrate="8">
		
		<!-- Blue -->
		<switch name="/systems/hydraulic/blue-qty-cmd">
			<default value="/systems/hydraulic/blue-qty-input"/>
			<test value="0">
				/systems/failures/hydraulic/blue-leak eq 1
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/blue-qty-decr-rate">
			<default value="100"/> <!-- Instant -->
			<test value="0.25">
				/systems/failures/hydraulic/blue-leak eq 1
			</test>
		</switch>
		
		<actuator name="/systems/hydraulic/blue-qty">
			<input>/systems/hydraulic/blue-qty-cmd</input>
			<rate_limit sense="incr">100</rate_limit> <!-- Instant -->
			<rate_limit sense="decr">/systems/hydraulic/blue-qty-decr-rate</rate_limit>
		</actuator>
		
		<!-- Green -->
		<switch name="/systems/hydraulic/green-qty-cmd-cmd">
			<default value="/systems/hydraulic/green-qty-input"/>
			<test value="0">
				/systems/failures/hydraulic/green-leak eq 1
			</test>
		</switch>
		
		<fcs_function name="/systems/hydraulic/green-qty-cmd">
			<function>
				<sum>
					<property>/systems/hydraulic/green-qty-cmd-cmd</property>
					<product>
						<value>2.1</value>
						<property>/gear/gear[0]/position-norm</property>
					</product>
				</sum>
			</function>
		</fcs_function>
		
		<switch name="/systems/hydraulic/green-qty-decr-rate">
			<default value="100"/> <!-- Instant -->
			<test value="0.25">
				/systems/failures/hydraulic/green-leak eq 1
			</test>
		</switch>
		
		<actuator name="/systems/hydraulic/green-qty">
			<input>/systems/hydraulic/green-qty-cmd</input>
			<rate_limit sense="incr">100</rate_limit> <!-- Instant -->
			<rate_limit sense="decr">/systems/hydraulic/green-qty-decr-rate</rate_limit>
		</actuator>
		
		<!-- Yellow -->
		<switch name="/systems/hydraulic/yellow-qty-cmd">
			<default value="/systems/hydraulic/yellow-qty-input"/>
			<test value="0">
				/systems/failures/hydraulic/yellow-leak eq 1
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/yellow-qty-decr-rate">
			<default value="100"/> <!-- Instant -->
			<test value="0.25">
				/systems/failures/hydraulic/yellow-leak eq 1
			</test>
		</switch>
		
		<actuator name="/systems/hydraulic/yellow-qty">
			<input>/systems/hydraulic/yellow-qty-cmd</input>
			<rate_limit sense="incr">100</rate_limit> <!-- Instant -->
			<rate_limit sense="decr">/systems/hydraulic/yellow-qty-decr-rate</rate_limit>
		</actuator>
	
	</channel>
	
	<channel name="Sources" execrate="8">
		
		<!-- Common -->
		<switch name="/systems/hydraulic/sys-decr-rate">
			<default value="150"/> <!-- 1 second per 150 psi -->
			<test value="500"> <!-- 2 seconds per 1000 psi for ACCONFIG -->
				/systems/acconfig/autoconfig-running eq 1
			</test>
		</switch>
		
		<!-- RAT Blue -->
		<kinematic name="/systems/hydraulic/sources/rat/position">
			<input>/systems/electrical/some-electric-thingie/rat-deploy</input>
			<traverse>
				<setting>
					<position>0.0</position>
					<time>0.0</time>
				</setting>
				<setting>
					<position>1.0</position>
					<time>2.5</time>
				</setting>
			</traverse>
		</kinematic>
		
		<fcs_function name="/systems/hydraulic/sources/rat/source-psi">
			<function>
				<ifthen>
					<eq>
						<property>/systems/hydraulic/sources/rat/position</property>
						<value>1</value>
					</eq>
					<table>
						<independentVar lookup="row">/instrumentation/airspeed-indicator/indicated-speed-kt</independentVar>
						<tableData>
							90   0
							100  2500
						</tableData>
					</table>
					<value>0</value>
				</ifthen>
			</function>
		</fcs_function>
		
		<switch name="/systems/hydraulic/sources/rat/output-psi">
			<default value="/systems/hydraulic/sources/rat/source-psi"/>
		</switch>
		
		
		<!-- TODO PSI according to flow rate
		0 L / M = 2987 psi
		23 L / M = 2854 psi
		32 L / M = 2175 psi
		
		Power Draw 45A at speed of 7600 RPM to 8000 RPM max load
		Startup Draw 138A
		-->
		
		<!-- Elec Blue -->
		<switch name="/systems/hydraulic/sources/blue-elec/pump-operate">
			<default value="0"/>
			<test logic="AND" value="1">
				/controls/hydraulic/switches/blue-elec-ovrd eq 1
				/controls/hydraulic/switches/blue-elec eq 1
				position/wow eq 1
			</test>
			<test logic="AND" value="1">
				<test logic="OR">
					/controls/hydraulic/switches/blue-elec-ovrd eq 1
					/controls/hydraulic/switches/blue-elec eq 1
				</test>
				<test logic="OR">
					/engines/engine[0]/state eq 3
					/engines/engine[1]/state eq 3
				</test>
				/systems/electrical/bus/ac-1 ge 110
			</test>
			<test logic="AND" value="1">
				/systems/electrical/bus/ac-1 ge 110
				/systems/electrical/relay/apu-glc/contact-pos eq 1
				/systems/hydraulic/sources/blue-elec/pump-operate-apu-timer ne 0
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/sources/blue-elec/pump-operate-apu">
			<default value="0"/>
			<test logic="AND" value="1">
				gear/unit[0]/WOW eq 0
				/systems/electrical/bus/ac-1 ge 110
				<test logic="OR">
					/engines/engine[0]/state ne 3
					/engines/engine[1]/state ne 3
				</test>
				/systems/electrical/relay/apu-glc/contact-pos eq 1
			</test>
		</switch>
		
		<actuator name="/systems/hydraulic/sources/blue-elec/pump-operate-apu-timer">
            <input>/systems/hydraulic/sources/blue-elec/pump-operate-apu</input>
            <rate_limit sense="incr">100</rate_limit> <!-- Instant -->
            <rate_limit sense="decr">0.0083333</rate_limit> <!-- 120 seconds -->
        </actuator>
		
		<fcs_function name="/systems/hydraulic/sources/blue-elec/source-psi">
			<function>
				<ifthen>
					<nq>
						<property>/systems/failures/hydraulic/blue-elec</property>
						<value>1</value>
					</nq>
					<table>
						<independentVar lookup="row">/systems/hydraulic/sources/blue-elec/pump-operate</independentVar>
						<tableData>
							 0    0
							 1  3000
						</tableData>
					</table>
					<value>0</value>
				</ifthen>
			</function>
		</fcs_function>
		
		<switch name="/systems/hydraulic/sources/blue-elec/output-psi">
			<default value="0"/>
			<test value="/systems/hydraulic/sources/blue-elec/source-psi">
				/systems/failures/hydraulic/blue-elec eq 0
			</test>
		</switch>
		
		<!-- TODO PSI according to flow rate
		0 L / M = 3000 psi
		140 L / M = 2854 psi
		-->
		
		<!-- EDP Green -->
		<fcs_function name="/systems/hydraulic/sources/green-edp/source-psi">
			<function>
				<ifthen>
					<nq>
						<property>/systems/failures/hydraulic/green-edp</property>
						<value>1</value>
					</nq>
					<table>
						<independentVar lookup="row">/engines/engine[0]/n2-actual</independentVar>
						<tableData>
							40    0
							45  3000
						</tableData>
					</table>
					<value>0</value>
				</ifthen>
			</function>
		</fcs_function>
		
		<actuator name="/systems/hydraulic/sources/green-edp/fire-valve">
			<input>/controls/engines/engine[0]/fire-btn</input>
			<rate_limit>0.25</rate_limit> <!-- 4 seconds -->
		</actuator>
		
		<switch name="/systems/hydraulic/sources/green-edp/output-psi">
			<default value="0"/>
			<test value="/systems/hydraulic/sources/green-edp/source-psi">
				/controls/hydraulic/switches/green-edp eq 1
			</test>
		</switch>
		
		<!-- Elec Yellow -->
		<switch name="/systems/hydraulic/sources/yellow-elec/pump-operate">
			<default value="0"/>
			<test logic="AND" value="1">
				/controls/hydraulic/switches/yellow-elec eq 1
				/systems/failures/hydraulic/yellow-elec ne 1
				<test logic="OR"> <!-- TODO: via 3XX CB 122VU -->
					/systems/electrical/relay/ext-epc/output ge 110
					/systems/electrical/bus/ac-2 ge 110
				</test>
			</test>
		</switch>
		
		<!-- TODO PSI according to flow rate
		0 L / M = 2987 psi
		23 L / M = 2842 psi
		32 L / M = 2175 psi
		
		Power Draw 45A at full speed of 7700 RPM
		Startup 138A
		-->
		
		<fcs_function name="/systems/hydraulic/sources/yellow-elec/source-psi">
			<function>
				<table>
					<independentVar lookup="row">/systems/hydraulic/sources/yellow-elec/pump-operate</independentVar>
					<tableData>
						 0    0
						 1  3000
					</tableData>
				</table>
			</function>
		</fcs_function>
		
		<switch name="/systems/hydraulic/sources/yellow-elec/output-psi">
			<default value="0"/>
			<test value="/systems/hydraulic/sources/yellow-elec/source-psi">
				/systems/failures/hydraulic/yellow-elec eq 0
			</test>
		</switch>
		
		
		<!-- TODO PSI according to flow rate
		0 L / M = 3000 psi
		140 L / M = 2854 psi
		-->
		
		<!-- EDP Yellow -->
		<fcs_function name="/systems/hydraulic/sources/yellow-edp/source-psi">
			<function>
				<ifthen>
					<nq>
						<property>/systems/failures/hydraulic/yellow-edp</property>
						<value>1</value>
					</nq>
					<table>
						<independentVar lookup="row">/engines/engine[1]/n2-actual</independentVar>
						<tableData>
							40    0
							45 3000
						</tableData>
					</table>
					<value>0</value>
				</ifthen>
			</function>
		</fcs_function>
		
		<actuator name="/systems/hydraulic/sources/yellow-edp/fire-valve">
			<input>/controls/engines/engine[1]/fire-btn</input>
			<rate_limit>0.25</rate_limit> <!-- 4 seconds -->
		</actuator>
		
		<switch name="/systems/hydraulic/sources/yellow-edp/output-psi">
			<default value="0"/>
			<test value="/systems/hydraulic/sources/yellow-edp/source-psi">
				/controls/hydraulic/switches/yellow-edp eq 1
			</test>
		</switch>
		
	</channel>
	
	<channel name="Pressure Totals" execrate="8">
		
		<!-- Blue PSI -->
		<fcs_function name="/systems/hydraulic/blue-psi-cmd">
			<function>
				<ifthen>
					<ge>
						<property>/systems/hydraulic/blue-qty</property>
						<value>1.0</value>
					</ge>
					<max>
						<property>/systems/hydraulic/sources/blue-elec/output-psi</property>
						<property>/systems/hydraulic/sources/rat/output-psi</property>
					</max>
					<value>0</value>
				</ifthen>
			</function>
		</fcs_function>
		
		<actuator name="/systems/hydraulic/blue-psi">
			<input>/systems/hydraulic/blue-psi-cmd</input>
			<rate_limit sense="incr">/systems/hydraulic/sys-incr-rate</rate_limit>
			<rate_limit sense="decr">/systems/hydraulic/sys-decr-rate</rate_limit>
		</actuator>
		
		<!-- Green PSI -->
		<fcs_function name="/systems/hydraulic/green-psi-cmd-pump">
			<function>
				<ifthen>
					<ge>
						<property>/systems/hydraulic/green-qty</property>
						<value>1.0</value>
					</ge>
					<property>/systems/hydraulic/sources/green-edp/output-psi</property>
					<value>0</value>
				</ifthen>
			</function>
		</fcs_function>
		
		<fcs_function name="/systems/hydraulic/green-psi-cmd">
			<function>
				<product>
					<ifthen>
						<ge>
							<property>/systems/hydraulic/green-qty</property>
							<value>1.0</value>
						</ge>
						<max>
							<property>/systems/hydraulic/green-psi-cmd-pump</property>
							<property>/systems/hydraulic/sources/ptu/yellow-green</property>
						</max>
						<value>0</value>
					</ifthen>
					<difference>
						<value>1</value>
						<property>/systems/hydraulic/sources/green-edp/fire-valve</property>
					</difference>
				</product>
			</function>
		</fcs_function>
		
		<actuator name="/systems/hydraulic/green-psi">
			<input>/systems/hydraulic/green-psi-cmd</input>
			<rate_limit sense="incr">/systems/hydraulic/sys-incr-rate</rate_limit>
			<rate_limit sense="decr">/systems/hydraulic/sys-decr-rate</rate_limit>
		</actuator>
		
		<pure_gain name="/systems/hydraulic/green-psi-ptu">
			<input>/systems/hydraulic/green-psi</input>
			<gain>0.9</gain>
		</pure_gain>
		
		<!-- Yellow PSI -->
		<fcs_function name="/systems/hydraulic/yellow-psi-cmd-pump">
			<function>
				<ifthen>
					<ge>
						<property>/systems/hydraulic/yellow-qty</property>
						<value>1.0</value>
					</ge>
					<max>
						<property>/systems/hydraulic/sources/yellow-edp/output-psi</property>
						<property>/systems/hydraulic/sources/yellow-elec/output-psi</property>
					</max>
					<value>0</value>
				</ifthen>
			</function>
		</fcs_function>
		
		<fcs_function name="/systems/hydraulic/yellow-psi-cmd">
			<function>
				<product>
					<ifthen>
						<ge>
							<property>/systems/hydraulic/yellow-qty</property>
							<value>1.0</value>
						</ge>
						<max>
							<property>/systems/hydraulic/yellow-psi-cmd-pump</property>
							<property>/systems/hydraulic/sources/ptu/green-yellow</property>
						</max>
						<value>0</value>
					</ifthen>
					<difference>
						<value>1</value>
						<property>/systems/hydraulic/sources/yellow-edp/fire-valve</property>
					</difference>
				</product>
			</function>
		</fcs_function>

		<actuator name="/systems/hydraulic/yellow-psi">
			<input>/systems/hydraulic/yellow-psi-cmd</input>
			<rate_limit sense="incr">/systems/hydraulic/sys-incr-rate</rate_limit>
			<rate_limit sense="decr">/systems/hydraulic/sys-decr-rate</rate_limit>
		</actuator>
		
		<pure_gain name="/systems/hydraulic/yellow-psi-ptu">
			<input>/systems/hydraulic/yellow-psi</input>
			<gain>0.9</gain>
		</pure_gain>

		<fcs_function name="/systems/hydraulic/yellow-accumulator-psi-cmd">
			<function>
				<ifthen>
					<and>
						<ge>
							<property>/systems/hydraulic/yellow-psi</property>
							<value>0</value>
						</ge>
						<ge>
							<property>/systems/hydraulic/yellow-psi</property>
							<property>/systems/hydraulic/yellow-accumulator-psi-cmd</property>
						</ge>
					</and>
					<max>
						<property>/systems/hydraulic/yellow-psi</property>
						<property>/systems/hydraulic/yellow-accumulator-psi-cmd</property>
					</max>
					<property>/systems/hydraulic/yellow-accumulator-psi-cmd</property>
				</ifthen>
			</function>
		</fcs_function>
		
		<actuator name="/systems/hydraulic/yellow-accumulator-psi">
			<input>/systems/hydraulic/yellow-accumulator-psi-cmd</input>
			<rate_limit sense="incr">/systems/hydraulic/sys-incr-rate</rate_limit>
			<rate_limit sense="decr">/systems/hydraulic/sys-decr-rate</rate_limit>
		</actuator>
		
		<fcs_function name="/systems/hydraulic/yellow-psi-diff">
			<function>
				<difference>
					<property>/systems/hydraulic/yellow-psi</property>
					<property>/systems/hydraulic/green-psi</property>
				</difference>
			</function>
		</fcs_function>
		
	</channel>
		
	<channel name="Power Transfer Unit" execrate="8">
		<!-- PTU -->
		<!-- todo - add yellow pump running to close cargo doors inhibits PTU -->
		<switch name="/systems/hydraulic/sources/ptu/ptu-inhibited">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-service-bus ge 25
				/gear/gear[0]/compression-norm ne 0
				<test logic="OR">
					<test logic="AND">
						/sim/model/autopush/enabled eq 1
						/controls/gear/brake-parking eq 0
					</test>
					/controls/gear/brake-parking eq 1
				</test>
				<test logic="OR">
					<test logic="AND">
						/controls/engines/engine[0]/cutoff-switch eq 0
						/controls/engines/engine[1]/cutoff-switch eq 1
					</test>
					<test logic="AND">
						/controls/engines/engine[0]/cutoff-switch eq 1
						/controls/engines/engine[1]/cutoff-switch eq 0
					</test>
				</test>
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/sources/ptu/ptu-hydraulic-condition">
			<test logic="AND" value="0">
				/systems/hydraulic/yellow-psi-diff gt -250
				/systems/hydraulic/yellow-psi-diff lt 250
				/systems/hydraulic/sources/ptu/ptu-hydraulic-condition eq 1
			</test>
			<test logic="AND" value="1">
				<test logic="OR">
					/systems/hydraulic/yellow-psi-diff ge 250
					/systems/hydraulic/yellow-psi-diff le -250
				</test>
				/systems/hydraulic/sources/ptu/ptu-hydraulic-condition eq 1
			</test>
			<test logic="AND" value="1">
				<test logic="OR">
					/systems/hydraulic/yellow-psi-diff gt 500
					/systems/hydraulic/yellow-psi-diff lt -500
				</test>
				/systems/hydraulic/sources/ptu/ptu-hydraulic-condition eq 0
			</test>
		</switch>
		
		<!-- Direction -->
		<switch name="/systems/hydraulic/sources/ptu/green-yellow">
			<default value="0"/>
			<test logic="AND" value="/systems/hydraulic/green-psi-ptu">
				<test logic="OR">
					/position/altitude-ft ge 1500
					/gear/gear[0]/compression-norm ne 0
				</test>
				/systems/electrical/bus/dc-service-bus ge 25
				/controls/hydraulic/switches/ptu eq 1
				/systems/hydraulic/sources/ptu/ptu-hydraulic-condition eq 1
				/systems/hydraulic/sources/ptu/ptu-inhibited eq 0
				/systems/failures/hydraulic/ptu ne 1
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/sources/ptu/yellow-green">
			<default value="0"/>
			<test logic="AND" value="/systems/hydraulic/yellow-psi-ptu">
				<test logic="OR">
					/position/gear-agl-ft ge 1500
					/gear/gear[0]/compression-norm ne 0
				</test>
				/systems/electrical/bus/dc-service-bus ge 25
				/controls/hydraulic/switches/ptu eq 1
				/systems/hydraulic/sources/ptu/ptu-hydraulic-condition eq 1
				/systems/hydraulic/sources/ptu/ptu-inhibited eq 0
				/systems/failures/hydraulic/ptu ne 1
			</test>
		</switch>
		
		<!-- fade in loop sound over 1 second -->
		<switch name="/systems/hydraulic/sources/ptu/ptu-loop-sound-cmd">
			<default value="0"/>
			<test logic="OR" value="1">
				/systems/hydraulic/sources/ptu/yellow-green ne 0
				/systems/hydraulic/sources/ptu/green-yellow ne 0
			</test>
		</switch>
		
		<actuator name="/systems/hydraulic/sources/ptu/ptu-loop-sound">
			<input>/systems/hydraulic/sources/ptu/ptu-loop-sound-cmd</input>
			<rate_limit sense="incr">1</rate_limit>
			<rate_limit sense="decr">120</rate_limit> <!-- instant -->
		</actuator>
		
	</channel>
	
	<channel name="Brakes" execrate="8">
		
		<switch name="/systems/hydraulic/brakes/mode">
			<default value="0"/>
			<test logic="AND" value="1">
				/controls/gear/brake-parking ne 1
				/controls/gear/nws-switch eq 1
				/systems/hydraulic/green-psi ge 2500
			</test>
			<test logic="AND" value="2">
				/controls/gear/brake-parking ne 1
				/controls/gear/nws-switch eq 1
				/systems/hydraulic/yellow-psi ge 2500
			</test>
			<test logic="AND" value="2">
				/controls/gear/brake-parking ne 1
				/systems/hydraulic/yellow-accumulator-psi-cmd ge 0
			</test>
		</switch>
		
		<lag_filter name="/systems/hydraulic/yellow-accumulator-psi-output-filter">
			<input>/systems/hydraulic/yellow-accumulator-psi</input>
			<c1>9</c1>
		</lag_filter>
		
		<switch name="/systems/hydraulic/yellow-accumulator-psi-output">
			<default value="/systems/hydraulic/yellow-accumulator-psi-output-filter"/>
			<test value="0">
				/systems/electrical/bus/dc-ess lt 25
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/brakes/pressure-left-psi-input">
			<default value="0"/>
			<test logic="AND" value="/systems/hydraulic/brakes/pressure-left-psi">
				/systems/hydraulic/brakes/mode ne 1
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/brakes/pressure-right-psi-input">
			<default value="0"/>
			<test logic="AND" value="/systems/hydraulic/brakes/pressure-right-psi">
				/systems/hydraulic/brakes/mode ne 1
			</test>
		</switch>
		
		<lag_filter name="/systems/hydraulic/brakes/pressure-left-psi-output-filter">
			<input>/systems/hydraulic/brakes/pressure-left-psi-input</input>
			<c1>9</c1>
		</lag_filter>
		
		<switch name="/systems/hydraulic/brakes/pressure-left-psi-output">
			<default value="/systems/hydraulic/brakes/pressure-left-psi-output-filter"/>
			<test value="0">
				/systems/electrical/bus/dc-ess lt 25
			</test>
		</switch>
		
		<lag_filter name="/systems/hydraulic/brakes/pressure-right-psi-output-filter">
			<input>/systems/hydraulic/brakes/pressure-right-psi-input</input>
			<c1>9</c1>
		</lag_filter>
		
		<switch name="/systems/hydraulic/brakes/pressure-right-psi-output">
			<default value="/systems/hydraulic/brakes/pressure-right-psi-output-filter"/>
			<test value="0">
				/systems/electrical/bus/dc-ess lt 25
			</test>
		</switch>
		
	</channel>
	
	<channel name="Relays for Warnings" execrate="8">
	
		<switch name="/systems/hydraulic/relays/blue-reservoir-low-qty-switch">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-1 ge 25
				/systems/hydraulic/blue-qty lt 2.2
			</test>
		</switch>
	
		<switch name="/systems/hydraulic/relays/green-reservoir-low-qty-switch">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-1 ge 25
				/systems/hydraulic/green-qty lt 3.0
			</test>
		</switch>
	
		<switch name="/systems/hydraulic/relays/yellow-reservoir-low-qty-switch">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-1 ge 25
				/systems/hydraulic/yellow-qty lt 3.0
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/relays/green-reservoir-low-qty-air-press-fault">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-1 ge 25
				<test logic="OR">
					/systems/hydraulic/relays/green-reservoir-low-qty-switch eq 1
					/systems/failures/hydraulic/green-reservoir-air-press-lo eq 1
				</test>
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/relays/yellow-reservoir-low-qty-air-press-fault">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-2 ge 25
				<test logic="OR">
					/systems/hydraulic/relays/yellow-reservoir-low-qty-switch eq 1
					/systems/failures/hydraulic/yellow-reservoir-air-press-lo eq 1
				</test>
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/relays/blue-reservoir-overheat">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-ess ge 25
				/systems/failures/hydraulic/blue-reservoir-ovht eq 1
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/relays/green-reservoir-overheat">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-1 ge 25
				/systems/failures/hydraulic/green-reservoir-ovht eq 1
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/relays/yellow-reservoir-overheat">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-2 ge 25
				/systems/failures/hydraulic/yellow-reservoir-ovht eq 1
			</test>
		</switch>
		
		<!-- These are a physical switch, so there is no need for transducer power -->
		<switch name="/systems/hydraulic/warnings/blue-lo-pr">
			<default value="0"/>
			<test logic="OR" value="1">
				<test logic="AND">
					/systems/hydraulic/blue-psi lt 1750
					/systems/hydraulic/warnings/blue-lo-pr eq 1
				</test>
				/systems/hydraulic/blue-psi lt 1450
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/warnings/green-lo-pr">
			<default value="0"/>
			<test logic="OR" value="1">
				<test logic="AND">
					/systems/hydraulic/green-psi lt 1750
					/systems/hydraulic/warnings/green-lo-pr eq 1
				</test>
				/systems/hydraulic/green-psi lt 1450
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/warnings/yellow-lo-pr">
			<default value="0"/>
			<test logic="OR" value="1">
				<test logic="AND">
					/systems/hydraulic/yellow-psi lt 1750
					/systems/hydraulic/warnings/yellow-lo-pr eq 1
				</test>
				/systems/hydraulic/yellow-psi lt 1450
			</test>
		</switch>
		
	</channel>
	
	<channel name="Lights" execrate="8">
		
		<switch name="/systems/hydraulic/lights/ptu-fault">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-2 ge 25
				<test logic="OR">
					/systems/hydraulic/relays/yellow-reservoir-overheat eq 1
					/systems/hydraulic/relays/green-reservoir-overheat eq 1
					<test logic="AND">
						<test logic="OR">
							/systems/hydraulic/relays/green-reservoir-low-qty-air-press-fault eq 1
							/systems/hydraulic/relays/yellow-reservoir-low-qty-air-press-fault eq 1
						</test>
						/controls/hydraulic/switches/ptu eq 1
					</test>
				</test>
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/lights/green-edp-fault">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-1 ge 25
				<test logic="OR">
					/systems/hydraulic/relays/green-reservoir-overheat eq 1
					<test logic="AND">
						<test logic="OR">
							<test logic="AND">
								/systems/hydraulic/sources/green-edp/output-psi le 1750
								/engines/engine[0]/state eq 3 <!-- TODO - oil pressure 73-25 SCH 09 -->
							</test>
							/systems/hydraulic/relays/green-reservoir-low-qty-air-press-fault eq 1
						</test>
						/controls/hydraulic/switches/green-edp eq 1
					</test>
				</test>
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/lights/yellow-edp-fault">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/dc-2 ge 25
				<test logic="OR">
					/systems/hydraulic/relays/yellow-reservoir-overheat eq 1
					<test logic="AND">
						<test logic="OR">
							<test logic="AND">
								/systems/hydraulic/sources/yellow-edp/output-psi le 1750
								/engines/engine[1]/state eq 3 <!-- TODO - oil pressure 73-25 SCH 09 -->
							</test>
							/systems/hydraulic/relays/yellow-reservoir-low-qty-air-press-fault eq 1
						</test>
						/controls/hydraulic/switches/yellow-edp eq 1
					</test>
				</test>
			</test>
		</switch>
		
		<switch name="/systems/hydraulic/lights/blue-elec-fault">
			<default value="0"/>
			<test logic="OR" value="1">
				/systems/hydraulic/relays/blue-reservoir-overheat eq 1
				/systems/failures/hydraulic/blue-elec-ovht eq 1
				<test logic="AND">
					<test logic="OR">
						/systems/hydraulic/relays/blue-reservoir-low-qty-switch eq 1
						/systems/failures/hydraulic/blue-reservoir-air-press-lo eq 1
						<test logic="AND">
							/systems/hydraulic/sources/blue-elec/output-psi le 1450
							<test logic="OR">
								/engines/engine[0]/state eq 3 <!-- TODO - oil pressure 73-25 SCH 09 -->
								/engines/engine[1]/state eq 3
								/controls/hydraulic/switches/blue-elec-ovrd eq 1
							</test>
						</test>
					</test>
					/controls/hydraulic/switches/blue-elec eq 1
				</test>
			</test>
		</switch>
		<switch name="/systems/hydraulic/lights/yellow-elec-fault">
			<default value="0"/>
			<test logic="OR" value="1">
				/systems/hydraulic/relays/yellow-reservoir-overheat eq 1
				/systems/failures/hydraulic/yellow-elec-ovht eq 1
				<test logic="AND">
					<test logic="OR">
						/systems/hydraulic/relays/yellow-reservoir-low-qty-switch eq 1
						/systems/failures/hydraulic/yellow-reservoir-air-press-lo eq 1
						/systems/hydraulic/sources/yellow-elec/output-psi le 1450
					</test>
					/controls/hydraulic/switches/yellow-elec eq 1
				</test>
			</test>
		</switch>
		
	</channel>
	
</system>