76 lines
No EOL
3.5 KiB
Text
76 lines
No EOL
3.5 KiB
Text
# A320Family LGCIU
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# Jonathan Redpath
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#####################
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# Initializing Vars #
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#####################
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var lgciu_init = func {
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#Hydraulics
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setprop("controls/LGCIU/hyd/safetyvalvepos",0); #1 is closed, 0 is open.
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setprop("controls/LGCIU/hyd/cutoffvalvepos",0); #1 is closed, 0 is open.
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setprop("controls/LGCIU/hyd/doorselvalvepos",1); #1 is closed, 0 is open.
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setprop("controls/LGCIU/hyd/gearselvalvepos",1); #1 is closed, 0 is open.
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#Sensors
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setprop("controls/LGCIU/sensor/ten",1); #1 is yes condition, ie on ground. Used to prohibit retraction on ground
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setprop("controls/LGCIU/sensor/adr1and3flt",0);
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setprop("controls/LGCIU/inhibit",1);
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#Timers
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safety_valve_ADR_timer.start();
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sensorten.start();
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}
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var safety_valve_ADR = setlistener("controls/LGCIU/sensor/adr1and3flt", func {
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var ADRfault = getprop("controls/LGCIU/sensor/adr1and3flt");
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if (ADRfault) {
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setprop("controls/LGCIU/hyd/safetyvalvepos",1); #close valve if we have ADR 1 + 3 FAULT
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}
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});
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var gear_retract_inhibit = setlistener("controls/LGCIU/sensor/ten", func {
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var sens10 = getprop("controls/LGCIU/sensor/ten");
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var gearcmd = getprop("gear/gear-cmd-norm");
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if (sens10) {
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setprop("controls/LGCIU/inhibit",1); #use this property in gear retraction logic, eg if not gearinhib
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} else {
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setprop("controls/LGCIU/inhibit",0);
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}
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});
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# Logic:
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#On the 320 series, the LGCIU, controls the safety valve when either ADR 1 or 3 has an indicated airspeed greater than 260KIAS, the valve will close preventing extension in flight. There is also a function where when the aircraft senses it's on the ground, the valve also closes to prevent inadvertent gear retraction.
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#ADR 1/3 less than 260 kts with L/G lever down ----> safety valve is open(lets hydraulic fluid pass through it) {take off condition}
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#ADR 1/3 less than 260 kts with L/G lever up ----> safety valve is still open as there is a 'Self Maintained' logic. {initial climb condition} As soon as ADR 1/3 more than 260 kts the safety valve will close (stop the hydraulic supply) {cruise}
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#ADR 1/3 more than 260 kts with L/G lever up ----> safety valve will remain close and when ADR 1/3 drops below 260 kts with L/G lever up it will still remain close. It will open only when L/G lever is selected down.{descent condition}
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var ADRlock = setlistener("controls/LGCIU/hyd/safetyvalvepos", func { #lock the valve if there is an ADR 1 + 3 fault
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var ADRfault = getprop("controls/LGCIU/sensor/adr1and3flt");
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var valve = getprop("controls/LGCIU/hyd/safetyvalvepos");
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if (!valve and ADRfault) {
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setprop("controls/LGCIU/hyd/safetyvalvepos",1);
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}
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});
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var safety_valve_ADR_timer = maketimer(1, func {
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var ADR1 = getprop("controls/adirs/ir[0]/fault");
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var ADR3 = getprop("controls/adirs/ir[2]/fault");
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if (ADR1 and ADR3) {
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setprop("controls/LGCIU/sensor/adr1and3flt", 1);
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} else {
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setprop("controls/LGCIU/sensor/adr1and3flt", 0);
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}
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});
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var sensorten = maketimer(0.1, func {
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var gearpos = getprop("/gear/gear[0]/position-norm");
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var gearpo1 = getprop("/gear/gear[1]/position-norm");
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var gearpo2 = getprop("/gear/gear[2]/position-norm");
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var gear1comp = getprop("gear/gear[0]/compression-norm");
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var gear2comp = getprop("gear/gear[1]/compression-norm");
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var gear3comp = getprop("gear/gear[2]/compression-norm");
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if (gearpos and gearpo1 and gearpo2 and ((gear1comp > 0) and (gear2comp > 0) and (gear3comp > 0))) {
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setprop("controls/LGCIU/sensor/ten",1); #1 is yes condition, ie on ground. Used to prohibit retraction on ground
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} else {
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setprop("controls/LGCIU/sensor/ten",0); #1 is yes condition, ie on ground. Used to prohibit retraction on ground
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}
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}); |