#ifndef _PISTONENGINE_HPP
#define _PISTONENGINE_HPP
+#include "Engine.hpp"
+
namespace yasim {
-class PistonEngine {
+class PistonEngine : public Engine {
public:
+ virtual PistonEngine* isPistonEngine() { return this; }
+
// Initializes an engine from known "takeoff" parameters.
PistonEngine(float power, float spd);
+ void setTurboParams(float mul, float maxMP);
+ void setDisplacement(float d);
+ void setCompression(float c);
+ void setWastegate(float norm) { _wastegate = norm; }
+ void setSupercharger(float hasSuper) { _hasSuper = hasSuper; }
+ void setTurboLag(float lag) { _turboLag = lag; }
- void setThrottle(float throttle);
- void setMixture(float mixture);
+ bool isCranking();
+ float getMP();
+ float getEGT();
+ float getMaxPower(); // max sea-level power
+ float getBoost() { return _boostPressure; }
+ float getOilTemp() { return _oilTemp; }
- // Calculates power output and fuel flow, based on a given
- // throttle setting (0-1 corresponding to the fraction of
- // "available" manifold pressure), mixture (fuel flux per rpm,
- // 0-1, where 1 is "max rich", or a little bit more than needed
- // for rated power at sea level)
- void calc(float density, float speed,
- float* powerOut, float* fuelFlowOut);
+ virtual void calc(float pressure, float temp, float speed);
+ virtual void stabilize();
+ virtual void integrate(float dt);
+ virtual float getTorque();
+ virtual float getFuelFlow();
private:
- float _P0; // reference power setting
+ // Static configuration:
+ float _power0; // reference power setting
float _omega0; // " engine speed
float _rho0; // " manifold air density
float _f0; // "ideal" fuel flow at P0/omega0
float _mixCoeff; // fuel flow per omega at full mixture
+ float _turbo; // (or super-)charger pressure multiplier
+ bool _hasSuper; // true indicates gear-driven (not turbo)
+ float _turboLag; // turbo lag time in seconds
+ float _charge; // current {turbo|super}charge multiplier
+ float _chargeTarget; // eventual charge value
+ float _maxMP; // static maximum pressure
+ float _wastegate; // wastegate setting, [0:1]
+ float _displacement; // piston stroke volume
+ float _compression; // compression ratio (>1)
- // Runtime settables:
- float _throttle;
- float _mixture;
+ // Runtime state/output:
+ float _mp;
+ float _torque;
+ float _fuelFlow;
+ float _egt;
+ float _boostPressure;
+ float _oilTemp;
+ float _oilTempTarget;
+ float _dOilTempdt;
};
}; // namespace yasim