fly/flightgear
1
0
Fork 0
Code Activity

coding style improvements according to ticket #595.

Browse source
This commit is contained in:
Jakub Kákona 2020-04-10 23:49:22 +02:00
parent cc8b981301
commit 2247badaa6
3 changed files with 18 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
src/FDM/YASim/ElectricEngine.cpp
View file

@ -2,6 +2,7 @@
// Based on original patch from Ian Dall <ian@beware.dropbear.id.au>
// Date: Wed Jan 11 22:35:24 2012 +1030
// #595 Support for electric motors in YASim (patch provided)
// Improved by ThunderFly s.r.o. <info@thunderfly.cz>
////////////////////////////////////////////////////////
#include "Atmosphere.hpp"
@ -9,14 +10,14 @@
#include "ElectricEngine.hpp"
namespace yasim {
// explain parameters!
ElectricEngine::ElectricEngine(float V, float Kv, float Rm) :
// idealized DC electric motor model
ElectricEngine::ElectricEngine(float voltage, float Kv, float Rm) :
_Rm(Rm)
{
_running = false;
_omega0 = V * Kv;
_K = 1/Kv;
_torque0 = _K * _K * _omega0 / _Rm;
_omega0 = voltage * Kv; // calculate RPM of unloaded motor
_K = 1/Kv; // calculate reciprocal value of motor velocity constant
_torque0 = _K * _K * _omega0 / _Rm; // rough estimate of full load torque valid for DC electric motor invalid for BLDC
}
void ElectricEngine::calc(float pressure, float temp, float omega)

13
src/FDM/YASim/ElectricEngine.hpp
View file

@ -1,6 +1,7 @@
// Based on original patch from Ian Dall <ian@beware.dropbear.id.au>
// Date: Wed Jan 11 22:35:24 2012 +1030
// #595 Support for electric motors in YASim (patch provided)
// Improved by ThunderFly s.r.o. <info@thunderfly.cz>
////////////////////////////////////////////////////////
#ifndef _ELECTRICENGINE_HPP
@ -15,8 +16,10 @@ public:
virtual ElectricEngine* isElectricEngine() { return this; }
// Initializes an engine from known "takeoff" parameters.
// explain parameters: physical meaning? which dimensions (volts, meters, kilogram...)?
ElectricEngine(float V, float Kv, float Rm);
// voltage - power supply voltage applied to the motor in volts
// Kv - electric motor velocity constant in RPM/1V
// Rm - engine winding resistance in Ohms
ElectricEngine(float voltage, float Kv, float Rm);
virtual void calc(float pressure, float temp, float speed);
virtual void stabilize() { return; };
@ -30,11 +33,11 @@ private:
float _omega0 {0}; // Reference engine speed
float _minThrottle {0.05f}; // minimum throttle [0:1]
float _K {0}; // _K = Eb/omega = tau/Ia
float _Rm {1};
float _Rm {1}; // engine windig resistence
// Runtime state/output:
float _torque {0};
float _torque0 {1};
float _torque {0}; // actual torque of the motor
float _torque0 {1}; // nominal operating torque
};
}; // namespace yasim

9
src/FDM/YASim/FGFDM.cpp
View file

@ -799,11 +799,10 @@ void FGFDM::parseTurbineEngine(const XMLAttributes* a)
void FGFDM::parseElectricEngine(const XMLAttributes* a)
{
//Kv is expected to be given as RPM in XML
float Kv = attrf(a, "Kv") * RPM2RAD;
float V = attrf(a, "V");
float Rm = attrf(a, "Rm");
ElectricEngine* eng = new ElectricEngine(V, Kv, Rm);
float Kv = attrf(a, "Kv") * RPM2RAD; //Kv is expected to be given as RPM per volt in XML
float voltage = attrf(a, "voltage"); // voltage applied at the motor windings in volts
float Rm = attrf(a, "Rm"); // winding resistance in Ohms
ElectricEngine* eng = new ElectricEngine(voltage, Kv, Rm);
((PropEngine*)_currObj)->setEngine(eng);
}