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Load engines from TOML and improve scenario audio and carb tuning

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Migrate 32 engine definitions into validated startup-loaded TOML files and separate configuration and snapshots from scenario assembly. Add camera-based stereo propagation from shared pipe geometry, preserve exhaust character, tune carburetor mixtures and idle, use ignition cuts for carb engines, and support returning to the scenario menu.

Validation: full Windows build and all 14 CTest checks passed.
This commit is contained in:
max
2026-10-24 03:24:35 +02:00
parent 5607dcf2b5
commit bf8621ad39
82 changed files with 24084 additions and 648 deletions
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28
include/FluidSim/TwoStrokeConfig.hpp
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@@ -1,5 +1,7 @@
#pragma once
#include "FluidSim/PipeProfile.hpp"
#include "FluidSim/Ecu.hpp"
#include "FluidSim/Vehicle.hpp"
#include <array>
namespace fluidsim::port {
@@ -8,14 +10,40 @@ enum class TwoStrokeExhaust { Racing, Straight };
// YZ125-sized baseline. Port/chamber/combustion dimensions are explicit design
// estimates, not a measured Yamaha cylinder or factory exhaust/ignition map.
struct TwoStrokeConfig {
EcuConfig ecu=[] {
EcuConfig e;
e.idle_control=EcuConfig::IdleControl::FixedOpening;
e.throttle_time_constant=.0002f;e.throttle_rate=5000;
e.ignition_map={{0,10},{3000,18},{6000,24},{9000,18},{11000,12},{13000,6},{15000,2},{18000,0}};
e.idle_rpm=3000;e.idle_max_opening=.3f;e.rev_limit_enabled=false;
e.overrun_cut_rpm=5000;e.overrun_resume_rpm=3500;
e.rev_limit_fuel_cut_enabled=false;e.overrun_fuel_cut_enabled=false;e.overrun_ignition_cut_enabled=true;
return e;
}();
VehicleConfig vehicle=[] {
VehicleConfig v;
v.primary_reduction=64.f/19;v.final_drive_ratio=49.f/13;
v.gear_ratios={31.f/13,29.f/15,27.f/17,23.f/17,20.f/17,19.f/18};
v.mass=170;v.wheel_radius=.3313f;
return v;
}();
float initial_rpm{3000}, starter_torque{8}, maximum_load_torque{10};
float crankshaft_inertia{.01f};
TwoStrokeExhaust exhaust{TwoStrokeExhaust::Racing};
float bore{.054f}, stroke{.0545f}, rod{.110f};
float trapped_compression{8.2f}; // exhaust-closure volume / clearance volume
float transfer_duration{130}, exhaust_duration{190};
float transfer_width{.050f}, exhaust_width{.036f}; // summed effective window widths
float pilot_jet_scale{.75f}, main_jet_scale{1.6f}, needle_jet_scale{1.f};
float needle_low_scale{2.72f}, needle_mid_scale{.8f};
float needle_off_idle_scale{12.f}, needle_transition_scale{9.f}, needle_tip_scale{5.f};
float needle_quarter_scale{1.4f}, needle_upper_scale{.76f};
float pilot_transition_scale{1.f}, pilot_tip_scale{1.f};
float jet_scale{1.f}; // multiplier on effective jet diameters
float crankcase_clearance{150e-6f};
float carburetor_diameter{.0381f};
float idle_spark_gain{.05f}; // spark degrees per RPM error at the fixed carb stop
float idle_minimum_advance{-10.f};
float idle_slide_opening{.045f}; // fixed mechanical stop, normalized 0..1 (4.5%)
float minimum_burn_seconds{.0008f};
// Empirical mechanical FMEP = A + B*mean_piston_speed + C*speed^2.