closed_loop_fuel.h

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// closed_loop_fuel.h
 
#pragma once
 
#include "closed_loop_fuel_cell.h"
#include "deadband.h"
#include "short_term_fuel_trim_state_generated.h"
 
struct stft_s;
 
struct ClosedLoopFuelResult {
    ClosedLoopFuelResult() {
        // Default is no correction, aka 1.0 multiplier
        for (size_t i = 0; i < FT_BANK_COUNT; i++) {
            banks[i] = 1.0f;
        }
    }
 
    float banks[FT_BANK_COUNT];
};
 
struct FuelingBank {
    ClosedLoopFuelCellImpl cells[STFT_CELL_COUNT];
};
 
class ShortTermFuelTrim : public EngineModule, public short_term_fuel_trim_state_s {
public:
    void init(stft_s *stftCfg);
    // EngineModule implementation
    void onSlowCallback() override;
    bool needsDelayedShutoff() override;
 
    ClosedLoopFuelResult getCorrection(float rpm, float fuelLoad);
 
#if ! EFI_UNIT_TEST
private:
#endif
    FuelingBank banks[FT_BANK_COUNT];
 
    Deadband<25> idleDeadband;
    Deadband<2> overrunDeadband;
    Deadband<2> loadDeadband;
 
    SensorType getSensorForBankIndex(size_t index);
    size_t computeStftBin(float rpm, float load, stft_s& cfg);
    stft_state_e getCorrectionState();
    stft_state_e getLearningState(SensorType sensor);
};
 
void initStft(void);
 
/* TODO: move out of here */
bool checkIfTuningVeNow();