tcu.cpp

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/**
 * @file        tcu.cpp
 * @brief       Base classes for gear selection and transmission control
 *
 * @date Aug 31, 2020
 * @author David Holdeman, (c) 2020
 */
 
#include "pch.h"
 
#include "tcu.h"
 
#if EFI_TCU
void TransmissionControllerBase::init() {
}
 
void TransmissionControllerBase::update(gear_e /*gear*/) {
    postState();
}
 
gear_e TransmissionControllerBase::setCurrentGear(gear_e gear) {
    currentGear = gear;
    return getCurrentGear();
}
 
gear_e TransmissionControllerBase::getCurrentGear() const {
    return currentGear;
}
 
void TransmissionControllerBase::postState() {
#if EFI_TUNER_STUDIO
    auto iss = Sensor::get(SensorType::InputShaftSpeed);
    auto rpm = Sensor::get(SensorType::Rpm);
    if (iss.Valid && rpm.Valid) {
        tcRatio = rpm.Value / iss.Value;
    }
  tcuCurrentGear = getCurrentGear();
#endif
}
 
// call to mark the start of the shift
void TransmissionControllerBase::measureShiftTime(gear_e gear) {
    m_shiftTime = true;
    m_shiftTimer.reset();
    m_shiftTimeGear = gear;
}
 
float TransmissionControllerBase::isShiftCompleted() {
    auto detected = Sensor::get(SensorType::DetectedGear);
    auto iss = Sensor::get(SensorType::InputShaftSpeed);
    // If gear detection is set up and the gear we are trying to shift into has been detected
    if (detected.Valid && m_shiftTime && m_shiftTimeGear == detected.Value) {
        m_shiftTime = false;
        return m_shiftTimer.getElapsedSeconds();
        // If ISS isn't configured, we want to use a fixed value.
    } else if (!iss.Valid && m_shiftTime && m_shiftTimer.hasElapsedMs(config->tcu_shiftTime)) {
        m_shiftTime = false;
        // convert ms to seconds for gauge
        return config->tcu_shiftTime * 0.001;
    } else {
        // a return value of 0 means the shift is not completed yet
        return 0;
    }
}
#endif // EFI_TCU