A320-family/Systems/a320-ignition.xml

<?xml version="1.0"?>

<!-- Airbus A320 Ignition -->
<!-- Copyright (c) 2022 Josh Davidson (Octal450) -->

<system name="A320: Ignition">
	
	<channel name="Ignition" execrate="8">
		
		<switch name="/systems/ignition/ign-1/ign-a">
			<default value="0"/>
			<test logic="AND" value="1">
				<test logic="OR"> <!-- Priority Stat Inv -->
					/systems/electrical/sources/si-1/output-volt ge 110
					/systems/electrical/bus/ac-ess ge 110
				</test>
				/controls/ignition/start-sw eq 2
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-1/ign-b">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/ac-1 ge 110
				/controls/ignition/start-sw eq 2
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-1/ign-avail">
			<default value="0"/>
			<test logic="OR" value="1">
				/systems/ignition/ign-1/ign-a eq 1
				/systems/ignition/ign-1/ign-b eq 1
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-2/ign-a">
			<default value="0"/>
			<test logic="AND" value="1">
				<test logic="OR"> <!-- Priority Stat Inv -->
					/systems/electrical/sources/si-1/output-volt ge 110
					/systems/electrical/bus/ac-ess ge 110
				</test>
				/controls/ignition/start-sw eq 2
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-2/ign-b">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/electrical/bus/ac-2 ge 110
				/controls/ignition/start-sw eq 2
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-2/ign-avail">
			<default value="0"/>
			<test logic="OR" value="1">
				/systems/ignition/ign-2/ign-a eq 1
				/systems/ignition/ign-2/ign-b eq 1
			</test>
		</switch>
	
	</channel>
	
	<channel name="Engine Start/Stop"> <!-- Do NOT execrate! -->
		
		<!-- Engine 1 -->
		<switch name="/systems/ignition/can-run-1">
			<default value="0"/>
			<test value="1">
				propulsion/tank[5]/contents-lbs ge 1
			</test>
		</switch>
		
		<switch name="/systems/ignition/cutoff-1">
			<default value="1"/>
			<test logic="AND" value="0">
				/controls/engines/engine[0]/cutoff-switch eq 0
				/systems/ignition/can-run-1 eq 1
			</test>
		</switch>

		<switch name="/systems/ignition/can-start-1">
			<default value="1"/>
			<test logic="OR" value="0">
				/systems/pneumatics/psi/engine-1-psi lt 20
				/engines/engine[0]/n2-actual ge /systems/ignition/starter-cutoff-n2
				/systems/ignition/ign-1/ign-avail ne 1
			</test>
			<test logic="AND" value="0"> <!-- So that starting is aborting if cutoff placed to off -->
				/systems/ignition/cutoff-1 eq 1
				/engines/engine[0]/state ge 2
			</test>
		</switch>
		
		<switch name="/systems/ignition/auto-start-1">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/ignition/can-start-1 eq 1
				/systems/ignition/cutoff-1 eq 0
				/controls/engines/engine[0]/start-switch eq 0
			</test>
		</switch>
		
		<switch name="/systems/ignition/start-switch-1">
			<default value="/controls/engines/engine[0]/start-switch"/>
			<test logic="OR" value="0">
				/systems/ignition/can-start-1 eq 0
				/systems/ignition/auto-start-1 eq 1
			</test>
			<output>/controls/engines/engine[0]/start-switch</output>
		</switch>
		
		<switch name="/systems/ignition/start-valve-1-cmd">
			<default value="0"/>
			<test logic="OR" value="1">
				/systems/ignition/auto-start-1 eq 1
				/systems/ignition/start-switch-1 eq 1
			</test>
		</switch>
		
		<actuator name="/systems/ignition/start-valve-1">
			<input>/systems/ignition/start-valve-1-cmd</input>
			<rate_limit sense="incr">1</rate_limit>
			<rate_limit sense="decr">1000</rate_limit>
		</actuator>
		
		<switch name="/systems/ignition/starter-1">
			<default value="0"/>
			<test value="1">
				/systems/ignition/start-valve-1 eq 1
			</test>
			<output>/systems/pneumatics/valves/starter-valve-1</output>
		</switch>
		
		<switch name="/systems/ignition/cutoff-delay-cmd-1">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/ignition/starter-1 eq 1
				/engines/engine[0]/n2-actual ge /systems/ignition/starter-engage-n2
			</test>
		</switch>
		
		<switch name="/systems/ignition/cutoff-delay-rate-1">
			<default value="1000"/>
			<test value="1"> <!-- There's a delay -->
				/systems/ignition/start-switch-1 eq 1
			</test>
			<test value="0.45"> <!-- JSBsim sequencing fix + there's a delay -->
				/systems/ignition/auto-start-1 eq 1
			</test>
		</switch>
		
		<actuator name="/systems/ignition/cutoff-delay-1">
			<input>/systems/ignition/cutoff-delay-cmd-1</input>
			<rate_limit sense="incr">/systems/ignition/cutoff-delay-rate-1</rate_limit>
			<rate_limit sense="decr">1000</rate_limit>
		</actuator>
		
		<switch name="/systems/ignition/starter-jsb-1">
			<default value="/systems/ignition/starter-1"/>
			<test logic="AND" value="1"> <!-- Because JSBsim will kill the engine if we cut out early -->
				/engines/engine[0]/n2-actual ge /systems/ignition/starter-cutoff-n2
				/systems/ignition/cutoff-1 eq 0
				/systems/ignition/can-run-1 eq 1
			</test>
		</switch>
		
		<switch name="/systems/ignition/cutoff-jsb-1">
			<default value="/systems/ignition/cutoff-1"/>
			<test logic="AND" value="1">
				/systems/ignition/auto-start-1 eq 1
				/systems/ignition/cutoff-delay-1 lt 1
				/systems/ignition/can-run-1 eq 1
			</test>
		</switch>
		
		<switch name="/systems/ignition/state-1">
			<default value="0"/>
			<test logic="AND" value="3">
				/systems/ignition/cutoff-jsb-1 eq 0
				/engines/engine[0]/n2-actual ge 58
			</test>
			<test logic="AND" value="2">
				/systems/ignition/cutoff-jsb-1 eq 0
				/systems/ignition/starter-jsb-1 eq 1
			</test>
			<test value="1">
				/systems/ignition/starter-jsb-1 eq 1
			</test>
			<output>/engines/engine[0]/state</output>
		</switch>
		
		<!-- Engine 2 -->
		<switch name="/systems/ignition/can-run-2">
			<default value="0"/>
			<test value="1">
				propulsion/tank[6]/contents-lbs ge 1
			</test>
		</switch>
		
		<switch name="/systems/ignition/cutoff-2">
			<default value="1"/>
			<test logic="AND" value="0">
				/controls/engines/engine[1]/cutoff-switch eq 0
				/systems/ignition/can-run-2 eq 1
			</test>
		</switch>

		<switch name="/systems/ignition/can-start-2">
			<default value="1"/>
			<test logic="OR" value="0">
				/systems/pneumatics/psi/engine-2-psi lt 20
				/engines/engine[1]/n2-actual ge /systems/ignition/starter-cutoff-n2
				/systems/ignition/ign-2/ign-avail ne 1
			</test>
			<test logic="AND" value="0"> <!-- So that starting is aborting if cutoff placed to off -->
				/systems/ignition/cutoff-2 eq 1
				/engines/engine[1]/state ge 2
			</test>
		</switch>
		
		<switch name="/systems/ignition/auto-start-2">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/ignition/can-start-2 eq 1
				/systems/ignition/cutoff-2 eq 0
				/controls/engines/engine[1]/start-switch eq 0
			</test>
		</switch>
		
		<switch name="/systems/ignition/start-switch-2">
			<default value="/controls/engines/engine[1]/start-switch"/>
			<test logic="OR" value="0">
				/systems/ignition/can-start-2 eq 0
				/systems/ignition/auto-start-2 eq 1
			</test>
			<output>/controls/engines/engine[1]/start-switch</output>
		</switch>
		
		<switch name="/systems/ignition/start-valve-2-cmd">
			<default value="0"/>
			<test logic="OR" value="1">
				/systems/ignition/auto-start-2 eq 1
				/systems/ignition/start-switch-2 eq 1
			</test>
		</switch>
		
		<actuator name="/systems/ignition/start-valve-2">
			<input>/systems/ignition/start-valve-2-cmd</input>
			<rate_limit sense="incr">1</rate_limit>
			<rate_limit sense="decr">1000</rate_limit>
		</actuator>
		
		<switch name="/systems/ignition/starter-2">
			<default value="0"/>
			<test value="1">
				/systems/ignition/start-valve-2 eq 1
			</test>
			<output>/systems/pneumatics/valves/starter-valve-2</output>
		</switch>
		
		<switch name="/systems/ignition/cutoff-delay-cmd-2">
			<default value="0"/>
			<test logic="AND" value="1">
				/systems/ignition/starter-2 eq 1
				/engines/engine[1]/n2-actual ge /systems/ignition/starter-engage-n2
			</test>
		</switch>
		
		<switch name="/systems/ignition/cutoff-delay-rate-2">
			<default value="1000"/>
			<test value="1"> <!-- There's a delay -->
				/systems/ignition/start-switch-2 eq 1
			</test>
			<test value="0.45"> <!-- JSBsim sequencing fix + there's a delay -->
				/systems/ignition/auto-start-2 eq 1
			</test>
		</switch>
		
		<actuator name="/systems/ignition/cutoff-delay-2">
			<input>/systems/ignition/cutoff-delay-cmd-2</input>
			<rate_limit sense="incr">/systems/ignition/cutoff-delay-rate-2</rate_limit>
			<rate_limit sense="decr">1000</rate_limit>
		</actuator>
		
		<switch name="/systems/ignition/starter-jsb-2">
			<default value="/systems/ignition/starter-2"/>
			<test logic="AND" value="1"> <!-- Because JSBsim will kill the engine if we cut out early -->
				/engines/engine[1]/n2-actual ge /systems/ignition/starter-cutoff-n2
				/systems/ignition/cutoff-2 eq 0
				/systems/ignition/can-run-2 eq 1
			</test>
		</switch>
		
		<switch name="/systems/ignition/cutoff-jsb-2">
			<default value="/systems/ignition/cutoff-2"/>
			<test logic="AND" value="1">
				/systems/ignition/auto-start-2 eq 1
				/systems/ignition/cutoff-delay-2 lt 1
				/systems/ignition/can-run-2 eq 1
			</test>
		</switch>
		
		<switch name="/systems/ignition/state-2">
			<default value="0"/>
			<test logic="AND" value="3">
				/systems/ignition/cutoff-jsb-2 eq 0
				/engines/engine[1]/n2-actual ge 58
			</test>
			<test logic="AND" value="2">
				/systems/ignition/cutoff-jsb-2 eq 0
				/systems/ignition/starter-jsb-2 eq 1
			</test>
			<test value="1">
				/systems/ignition/starter-jsb-2 eq 1
			</test>
			<output>/engines/engine[1]/state</output>
		</switch>
	
	</channel>
	
	<channel name="Ignition 2" execrate="8">
		
		<switch name="/systems/ignition/ign-1/igniter-a">
			<default value="0"/>
			<test value="0">
				/systems/ignition/ign-1/ign-avail eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-1 eq 3
				/controls/ignition/start-sw eq 2
				position/wow eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-1 eq 2
				<test logic="OR">
					position/wow eq 0
					/systems/ignition/auto-start-1 eq 0
				</test>
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-1 eq 2
				<test logic="OR"> <!-- FADEC A Igniter A and FADEC B Igniter A -->
					/systems/acconfig/options/igniter-select-1 eq 0
					/systems/acconfig/options/igniter-select-1 eq 1
				</test>
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-1/igniter-b">
			<default value="0"/>
			<test value="0">
				/systems/ignition/ign-1/ign-avail eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-1 eq 3
				/controls/ignition/start-sw eq 2
				position/wow eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-1 eq 2
				<test logic="OR">
					position/wow eq 0
					/systems/ignition/auto-start-1 eq 0
				</test>
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-1 eq 2
				<test logic="OR"> <!-- FADEC A Igniter B and FADEC B Igniter B -->
					/systems/acconfig/options/igniter-select-1 eq 2
					/systems/acconfig/options/igniter-select-1 eq 3
				</test>
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-2/igniter-a">
			<default value="0"/>
			<test value="0">
				/systems/ignition/ign-2/ign-avail eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-2 eq 3
				/controls/ignition/start-sw eq 2
				position/wow eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-2 eq 2
				<test logic="OR">
					position/wow eq 0
					/systems/ignition/auto-start-2 eq 0
				</test>
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-2 eq 2
				<test logic="OR"> <!-- FADEC A Igniter A and FADEC B Igniter A -->
					/systems/acconfig/options/igniter-select-2 eq 0
					/systems/acconfig/options/igniter-select-2 eq 1
				</test>
			</test>
		</switch>
		
		<switch name="/systems/ignition/ign-2/igniter-b">
			<default value="0"/>
			<test value="0">
				/systems/ignition/ign-2/ign-avail eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-2 eq 3
				/controls/ignition/start-sw eq 2
				position/wow eq 0
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-2 eq 2
				<test logic="OR">
					position/wow eq 0
					/systems/ignition/auto-start-2 eq 0
				</test>
			</test>
			<test logic="AND" value="1">
				/systems/ignition/state-2 eq 2
				<test logic="OR"> <!-- FADEC A Igniter B and FADEC B Igniter B -->
					/systems/acconfig/options/igniter-select-2 eq 2
					/systems/acconfig/options/igniter-select-2 eq 3
				</test>
			</test>
		</switch>
	
	</channel>

</system>