closed_loop_fuel_cell.h

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#pragma once
 
#include "sensor.h"
 
class ClosedLoopFuelCellBase {
public:
    // Update the cell's internal state - adjusting fuel up/down as appropriate
    void update(float lambdaDeadband, bool ignoreErrorMagnitude);
 
    // Get the current adjustment amount, without altering internal state.
    float getAdjustment() const;
 
    virtual float getLambdaError() const = 0;
protected:
    // Helpers - virtual for mocking
    virtual float getMaxAdjustment() const = 0;
    virtual float getMinAdjustment() const = 0;
    virtual float getIntegratorGain() const = 0;
 
private:
    // Current fueling adjustment.
    // 0 = no adjustment.
    // 0.1 = add 10% fuel.
    float m_adjustment = 0;
};
 
struct stft_cell_cfg_s;
 
class ClosedLoopFuelCellImpl final : public ClosedLoopFuelCellBase {
public:
    void configure(const stft_cell_cfg_s* configuration, SensorType lambdaSensor) {
        m_config = configuration;
        m_lambdaSensor = lambdaSensor;
    }
 
    float getLambdaError() const override;
private:
    const stft_cell_cfg_s *m_config = nullptr;
    SensorType m_lambdaSensor = SensorType::Invalid;
 
protected:
    float getMaxAdjustment() const override;
    float getMinAdjustment() const override;
    float getIntegratorGain() const override;
};