APU: make the code shutting down the APU after 0.2 seconds of power loss more resilient, uisng JSBSim
This commit is contained in:
Jonathan Redpath
parent
5e61555eb5
commit
7dfd9f15ff
2 changed files with 161 additions and 145 deletions
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@ -273,24 +273,6 @@ var APU = {
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me.autoStop();
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}
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if (systems.ELEC.Bus.dcBat.getValue() < 25) {
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if (!me._powerLost) {
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me._powerLost = 1;
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settimer(func() {
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if (me._powerLost) {
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if (me.GenericControls.starter.getValue()) {
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me.GenericControls.starter.setValue(0);
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}
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if (me.state != 0) {
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me.autoStop();
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}
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}
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}, 0.2);
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}
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} else {
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me._powerLost = 0;
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}
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if (systems.ELEC.EmerElec.getValue() == 1 and (systems.ELEC.EmerElec45.getValue() != 1 and systems.ELEC.Source.EmerGen.voltsRelay.getValue() < 110)) {
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me.inhibitEMERELEC = 1;
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} else {
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@ -316,6 +298,19 @@ var APUController = {
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}
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};
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setlistener("/systems/apu/shutdown-power-loss", func(val) {
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if (APUController.APU != nil) {
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if (val.getBoolValue()) {
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if (APUController.APU.GenericControls.starter.getValue()) {
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APUController.APU.GenericControls.starter.setValue(0);
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}
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if (APUController.APU.state != 0) {
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APUController.APU.autoStop();
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}
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}
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}
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}, 0, 0);
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var _masterTime = 0;
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setlistener("/controls/apu/master", func() {
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if (APUController.APU != nil) {
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@ -7,51 +7,51 @@
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<channel name="APU" execrate="8">
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<!-- bleed 1.8 kg / sec @ 42 psig -->
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<!-- fuel 148 kg/hr -->
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<!-- generator 24034 rpm, 10129 rpm fuel ctl, 32045 rpm starter, 51965 rpm cooling, 4137rpm oil pump -->
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<!-- generator 24034 rpm, 10129 rpm fuel ctl, 32045 rpm starter, 51965 rpm cooling, 4137rpm oil pump -->
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<fcs_function name="/systems/apu/bleed-load-kw">
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<function>
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<ifthen>
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<eq>
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<property>/controls/pneumatics/switches/apu</property>
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<value>1</value>
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</eq>
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<value>252</value>
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<value>0</value>
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</ifthen>
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</function>
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</fcs_function>
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<fcs_function name="/systems/apu/bleed-load-kw">
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<function>
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<ifthen>
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<eq>
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<property>/controls/pneumatics/switches/apu</property>
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<value>1</value>
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</eq>
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<value>252</value>
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<value>0</value>
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</ifthen>
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</function>
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</fcs_function>
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<fcs_function name="/systems/apu/electrical-load-kw">
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<function>
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<ifthen>
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<gt>
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<property>/systems/electrical/relay/apu-glc/output</property>
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<value>110</value>
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</gt>
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<value>132</value>
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<value>0</value>
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</ifthen>
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</function>
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</fcs_function>
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<fcs_function name="/systems/apu/electrical-load-kw">
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<function>
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<ifthen>
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<gt>
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<property>/systems/electrical/relay/apu-glc/output</property>
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<value>110</value>
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</gt>
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<value>132</value>
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<value>0</value>
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</ifthen>
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</function>
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</fcs_function>
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<fcs_function name="/systems/apu/apu-load-cmd">
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<function>
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<quotient>
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<sum>
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<property>/systems/apu/electrical-load-kw</property>
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<property>/systems/apu/bleed-load-kw</property>
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</sum>
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<value>400</value>
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</quotient>
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</function>
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</fcs_function>
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<fcs_function name="/systems/apu/apu-load-cmd">
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<function>
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<quotient>
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<sum>
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<property>/systems/apu/electrical-load-kw</property>
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<property>/systems/apu/bleed-load-kw</property>
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</sum>
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<value>400</value>
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</quotient>
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</function>
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</fcs_function>
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<actuator name="/systems/apu/apu-load">
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<input>/systems/apu/apu-load-cmd</input>
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<rate_limit>0.01</rate_limit> <!-- 60 seconds cooling period for bleed which is ~ 60% -->
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</actuator>
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<actuator name="/systems/apu/apu-load">
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<input>/systems/apu/apu-load-cmd</input>
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<rate_limit>0.01</rate_limit> <!-- 60 seconds cooling period for bleed which is ~ 60% -->
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</actuator>
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<washout_filter name="/systems/apu/dn-dt">
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<input>/engines/engine[2]/n1</input>
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@ -60,60 +60,60 @@
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<fcs_function name="/systems/apu/egt-degC">
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<function>
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<sum>
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<product>
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<property>/systems/apu/apu-load</property>
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<value>50</value>
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</product>
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<ifthen>
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<or>
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<lt>
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<property>/engines/engine[2]/n1</property>
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<value>0.5</value>
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</lt>
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<gt>
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<property>/systems/apu/dn-dt</property>
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<value>0</value>
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</gt>
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</or>
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<table>
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<independentVar lookup="row">/engines/engine[2]/n1</independentVar>
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<tableData>
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5.0 20.0
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8.0 45.0
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10.0 120.0
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12.0 225.0
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18.0 430.0
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25.0 500.0
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27.0 560.0
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30.0 720.0
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35.0 785.0
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40.0 800.0
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45.0 795.0
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50.0 785.0
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60.0 755.0
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75.0 645.0
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90.0 520.0
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100.0 415.0
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</tableData>
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</table>
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<table>
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<independentVar lookup="row">/engines/engine[2]/n1</independentVar>
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<tableData>
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2.0 200.0
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8.0 220.0
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12.0 225.0
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18.0 240.0
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30.0 250.0
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50.0 265.0
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60.0 295.0
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75.0 380.0
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90.0 410.0
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100.0 415.0
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</tableData>
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</table>
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</ifthen>
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</sum>
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<sum>
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<product>
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<property>/systems/apu/apu-load</property>
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<value>50</value>
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</product>
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<ifthen>
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<or>
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<lt>
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<property>/engines/engine[2]/n1</property>
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<value>0.5</value>
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</lt>
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<gt>
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<property>/systems/apu/dn-dt</property>
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<value>0</value>
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</gt>
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</or>
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<table>
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<independentVar lookup="row">/engines/engine[2]/n1</independentVar>
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<tableData>
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5.0 20.0
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8.0 45.0
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10.0 120.0
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12.0 225.0
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18.0 430.0
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25.0 500.0
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27.0 560.0
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30.0 720.0
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35.0 785.0
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40.0 800.0
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45.0 795.0
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50.0 785.0
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60.0 755.0
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75.0 645.0
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90.0 520.0
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100.0 415.0
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</tableData>
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</table>
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<table>
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<independentVar lookup="row">/engines/engine[2]/n1</independentVar>
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<tableData>
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2.0 200.0
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8.0 220.0
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12.0 225.0
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18.0 240.0
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30.0 250.0
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50.0 265.0
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60.0 295.0
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75.0 380.0
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90.0 410.0
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100.0 415.0
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</tableData>
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</table>
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</ifthen>
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</sum>
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</function>
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</fcs_function>
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@ -138,30 +138,30 @@
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</function>
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</fcs_function>
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<fcs_function name="/systems/apu/oil/oil-temperature-degC">
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<fcs_function name="/systems/apu/oil/oil-temperature-degC">
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<function>
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<product>
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<sum>
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<value>1.0</value> <!-- tune -->
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<product>
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<property>/systems/apu/apu-load</property>
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<value>0.3</value>
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</product>
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</sum>
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<table>
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<independentVar lookup="row">/systems/apu/oil/oil-pressure-psi</independentVar>
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<tableData>
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0 0
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25 135
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35 105
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55 85
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</tableData>
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</table>
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<quotient>
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<property>/engines/engine[2]/n1</property>
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<value>100</value>
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</quotient>
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</product>
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<product>
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<sum>
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<value>1.0</value> <!-- tune -->
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<product>
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<property>/systems/apu/apu-load</property>
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<value>0.3</value>
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</product>
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</sum>
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<table>
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<independentVar lookup="row">/systems/apu/oil/oil-pressure-psi</independentVar>
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<tableData>
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0 0
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25 135
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35 105
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55 85
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</tableData>
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</table>
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<quotient>
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<property>/engines/engine[2]/n1</property>
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<value>100</value>
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</quotient>
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</product>
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</function>
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</fcs_function>
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@ -170,10 +170,10 @@
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<sum>
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<property>/systems/apu/oil/level-l</property>
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<product>
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<quotient>
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<property>/engines/engine[2]/n1</property>
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<value>100</value>
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</quotient>
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<quotient>
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<property>/engines/engine[2]/n1</property>
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<value>100</value>
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</quotient>
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<property>/systems/apu/oil/allow-oil-consumption</property>
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<value>-0.00000131437</value>
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<property>simulation/channel-dt</property>
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@ -183,6 +183,27 @@
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<output>/systems/apu/oil/level-l</output>
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</fcs_function>
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<switch name="/systems/apu/shutdown-power-loss-cmd">
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<default value="0"/>
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<test logic="AND" value="1">
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/systems/electrical/bus/dc-bat lt 25
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</test>
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</switch>
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<actuator name="/systems/apu/shutdown-power-loss-timer">
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<input>/systems/apu/shutdown-power-loss-cmd</input>
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<rate_limit sense="incr">5</rate_limit>
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<rate_limit sense="decr">100</rate_limit>
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</actuator>
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<switch name="/systems/apu/shutdown-power-loss">
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<default value="0"/>
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<test logic="AND" value="1">
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/systems/apu/shutdown-power-loss-timer eq 1
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</test>
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</switch>
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</channel>
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</system>
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