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Added very simplistic volt and amp modeling to the electrical model. This

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should really be made more generic and part of the electrical model config
but this is all I had time for this weekend.
This commit is contained in:
curt 2003-05-27 19:18:14 +00:00
parent af13301cbd
commit 11e112c1e4
2 changed files with 45 additions and 0 deletions
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42
src/Systems/electrical.cxx
View file

@ -237,6 +237,8 @@ void FGElectricalSystem::init () {
config_props = new SGPropertyNode; config_props = new SGPropertyNode;
SGPropertyNode *path_n = fgGetNode("/sim/systems/electrical/path"); SGPropertyNode *path_n = fgGetNode("/sim/systems/electrical/path");
_volts_out = fgGetNode( "/systems/electrical/volts", true );
_amps_out = fgGetNode( "/systems/electrical/amps", true );
if (path_n) { if (path_n) {
SGPath config( globals->get_fg_root() ); SGPath config( globals->get_fg_root() );
@ -281,6 +283,7 @@ void FGElectricalSystem::unbind () {
void FGElectricalSystem::update (double dt) { void FGElectricalSystem::update (double dt) {
if ( !enabled ) { if ( !enabled ) {
_amps_out->setDoubleValue(0);
return; return;
} }
@ -308,6 +311,45 @@ void FGElectricalSystem::update (double dt) {
propagate( suppliers[i], 0.0, " " ); propagate( suppliers[i], 0.0, " " );
} }
double alt_norm
= fgGetDouble("/systems/electrical/suppliers/alternator") / 60.0;
// impliment an extremely simplistic voltage model (assumes
// certain naming conventions in electrical system config)
double volts = 0.0;
if ( fgGetBool("/controls/switches/master-bat") ) {
volts = 24.0;
}
if ( fgGetBool("/controls/switches/master-alt") &&
fgGetDouble("/engines/engine[0]/rpm") > 800 )
{
double alt_contrib = 28.0;
if ( alt_contrib > volts ) {
volts = alt_contrib;
}
}
_volts_out->setDoubleValue( volts );
// impliment an extremely simplistic amps model (assumes certain
// naming conventions in the electrical system config) ... FIXME:
// make this more generic
double amps = 0.0;
if ( fgGetBool("/controls/switches/master-bat") ) {
if ( fgGetBool("/controls/switches/master-alt") ) {
amps += 40.0 * alt_norm;
}
amps -= 15.0; // normal load
if ( fgGetBool("/controls/switches/flashing-beacon") ) {
amps -= 7.5;
}
if ( fgGetBool("/controls/switches/nav-lights") ) {
amps -= 7.5;
}
if ( amps > 7.0 ) {
amps = 7.0;
}
}
_amps_out->setDoubleValue( amps );
} }

3
src/Systems/electrical.hxx
View file

@ -215,6 +215,9 @@ private:
comp_list buses; comp_list buses;
comp_list outputs; comp_list outputs;
comp_list connectors; comp_list connectors;
SGPropertyNode *_volts_out;
SGPropertyNode *_amps_out;
}; };