AlphaNAirmass Class Reference

#include <alphan_airmass.h>

Inheritance diagram for AlphaNAirmass:

Collaboration diagram for AlphaNAirmass:

Public Member Functions
	AlphaNAirmass (const ValueProvider3D &veTable)
AirmassResult	getAirmass (float rpm, bool postState) override
Public Member Functions inherited from AirmassVeModelBase
	AirmassVeModelBase (const ValueProvider3D &veTable)
float	getVe (float rpm, percent_t load, bool postState) const

Additional Inherited Members
Static Public Member Functions inherited from SpeedDensityBase
static mass_t	getAirmassImpl (float ve, float manifoldPressure, float temperature)
Protected Member Functions inherited from SpeedDensityBase
	SpeedDensityBase (const ValueProvider3D &veTable)

Detailed Description

Definition at line 5 of file alphan_airmass.h.

Constructor & Destructor Documentation

AlphaNAirmass()

AlphaNAirmass::AlphaNAirmass ( const ValueProvider3D &  veTable )

inlineexplicit

Definition at line 7 of file alphan_airmass.h.

: SpeedDensityBase(veTable) {}

Member Function Documentation

getAirmass()

AirmassResult AlphaNAirmass::getAirmass ( float  rpm, bool  postState  )

overridevirtual

Implements AirmassModelBase.

Definition at line 6 of file alphan_airmass.cpp.

                                                                 {
    auto tps = Sensor::get(SensorType::Tps1);
 
    if (!tps.Valid) {
        // We are fully reliant on TPS - if the TPS fails, stop the engine.
        return {};
    }
 
    // In this case, VE directly describes the cylinder filling relative to the ideal
    float ve = getVe(rpm, tps.Value, postState);
 
    // optionally use real IAT instead of fixed air temperature
    constexpr float standardIat = STD_IAT;  // std atmosphere temperature
    float iat = engineConfiguration->alphaNUseIat
        ? Sensor::get(SensorType::Iat).value_or(standardIat)
        : standardIat;
 
    float iatK = iat + 273/* todo reuse C_K_OFFSET which would require adjusting unit tests*/;
 
    // TODO: should this be barometric pressure and/or temperature compensated?
    mass_t airmass = getAirmassImpl(
        ve,
        STD_ATMOSPHERE,
        iatK
    );
 
    return {
        airmass,
        tps.Value
    };
}

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The documentation for this class was generated from the following files:

• controllers/algo/airmass/alphan_airmass.h
• controllers/algo/airmass/alphan_airmass.cpp