88 lines
4.3 KiB
C++
88 lines
4.3 KiB
C++
#include "FluidSim/TwoStrokeScenario.hpp"
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#include "FluidSim/DynoCurve.hpp"
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#include <algorithm>
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#include <cmath>
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#include <iostream>
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#include <stdexcept>
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using namespace fluidsim::port;
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int main() {
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TwoStrokeScenario scenario;
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bool reed_open_seen = false, reed_closed_seen = false, above_old_limit = false;
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DynoCurve dyno;
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float peak = 0, maximum_rpm = 0;
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for (int sample = 0; sample < 14 * 44100; ++sample) {
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scenario.set_throttle(sample >= 2 * 44100 && sample < 6 * 44100 ? .6f : 0.f);
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const auto audio = scenario.process();
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if (!std::isfinite(audio.left) || !std::isfinite(audio.right))
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throw std::runtime_error("Nonfinite two-stroke audio");
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peak = std::max({peak, std::abs(audio.left), std::abs(audio.right)});
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if (sample % 44 != 0)
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continue;
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const auto state = scenario.snapshot();
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if (!std::isfinite(state.rpm) || !(state.cylinder_pressure > 0) ||
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!(state.crankcase_pressure > 0) || !(state.intake_pressure > 0))
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throw std::runtime_error("Invalid two-stroke physical state");
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if (scenario.ecu.rev_limited() || scenario.cylinder.rev_limit_active)
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throw std::runtime_error("Two-stroke rev limiter is active");
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if (sample >= 2 * 44100 && sample < 6 * 44100) {
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if (state.fuel_cut)
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throw std::runtime_error("Two-stroke cut fuel with the pedal open");
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above_old_limit |= state.rpm > 10200;
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}
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dyno.update(state.rpm, scenario.crankshaft.average_power / 1000,
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scenario.crankshaft.average_torque);
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reed_open_seen |= state.reed_open;
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reed_closed_seen |= !state.reed_open;
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maximum_rpm = std::max(maximum_rpm, state.rpm);
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}
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const auto final = scenario.snapshot();
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if (!above_old_limit)
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throw std::runtime_error("Two-stroke did not exceed the old rev limit");
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if (!reed_open_seen || !reed_closed_seen)
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throw std::runtime_error("Reed did not open and close");
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if (final.rpm < 2000 || final.rpm > 4000)
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throw std::runtime_error("Two-stroke idle did not recover after throttle release");
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if (peak >= 1)
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throw std::runtime_error("Two-stroke audio exceeds device range");
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for (const auto &pipe : scenario.pipes)
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if (pipe.positivity_repairs != 0)
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throw std::runtime_error("Two-stroke required pipe positivity repairs");
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// Launch the same motorcycle used by the twin, then exercise gear controls.
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scenario.shift_up();
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scenario.set_controls(.7f, 0, 0);
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for (int sample = 0; sample < 6 * 44100; ++sample) {
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const auto audio = scenario.process();
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if (!std::isfinite(audio.left) || !std::isfinite(audio.right))
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throw std::runtime_error("Nonfinite motorcycle launch audio");
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if (scenario.ecu.rev_limited())
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throw std::runtime_error("Limiter re-enabled under motorcycle load");
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}
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if (scenario.vehicle.current_gear != 1 || scenario.vehicle.speed < 1 ||
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!std::isfinite(scenario.vehicle.kinetic_energy()) || scenario.vehicle.engagement < .9f)
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throw std::runtime_error("Two-stroke motorcycle did not launch with clutch engaged");
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scenario.shift_up();
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if (scenario.vehicle.current_gear != 2)
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throw std::runtime_error("Two-stroke did not shift up");
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scenario.shift_down();
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if (scenario.vehicle.current_gear != 1)
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throw std::runtime_error("Two-stroke did not shift down");
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scenario.set_neutral();
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if (scenario.vehicle.current_gear != 0)
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throw std::runtime_error("Two-stroke neutral selection failed");
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bool positive_power = false, positive_torque = false;
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for (const auto& point : dyno.bins()) {
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positive_power |= point.power_kw > 0;
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positive_torque |= point.torque_nm > 0;
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}
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if (!positive_power || !positive_torque)
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throw std::runtime_error("Two-stroke dyno did not record power and torque");
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for (const auto& pipe : scenario.pipes)
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if (pipe.positivity_repairs != 0)
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throw std::runtime_error("Motorcycle launch required pipe positivity repairs");
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std::cout << "Two-stroke regression passed: peak=" << peak << ", maximum RPM=" << maximum_rpm
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<< ", recovered RPM=" << final.rpm << ", bike speed=" << scenario.vehicle.speed * 3.6f
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<< " km/h\n";
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}
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