273 lines
5.6 KiB
TOML
273 lines
5.6 KiB
TOML
# Engine definition. Dimensional keys state their units.
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schema_version = 2
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id = "single-450"
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name = "450 cc / carbureted four-stroke thumper"
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category = "Singles / four-stroke"
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description = "40 mm carb / mild valve timing / fixed idle stop"
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order = 17
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cycle = "four_stroke"
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[simulation]
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cells_per_meter = 20.0
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[engine]
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bank_angle_deg = 60.0
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cylinders = 1
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initial_rpm = 1960.0
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initialize_phased_charge = true
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layout = "inline"
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maximum_load_torque_nm = 30.0
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minimum_substeps = 1
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phase_degrees = [0.0]
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pipe_damping = 1.0
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starter_torque_nm = 11.21926
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throttle_diameter_mm = 40.0
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topology = "collector"
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[cylinder]
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afr = 14.7
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ambient_temperature_k = 300.0
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bore_mm = 96.0
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burn_duration_deg = 60.0
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burn_start_deg = 5.0
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compression = 10.0
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energy_variation = 0.05
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exhaust_valve_count = 1
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exhaust_valve_diameter_mm = 30.72
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fuel_lhv_j_per_kg = 4.4e+07
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heat_transfer = 100.0
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intake_valve_count = 1
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intake_valve_diameter_mm = 36.48
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misfire_probability = 0.0
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rod_mm = 111.6
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stroke_mm = 62.0
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wall_area = 0.02
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wiebe_a = 5.0
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wiebe_m = 2.0
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[crankshaft]
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friction_constant_nm = 1.795081
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friction_quadratic_nm_s2 = 0.0
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friction_viscous_nm_s = 0.001795081
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inertia_kg_m2 = 0.05385243
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[ecu]
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idle_base_opening = 0.045
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idle_control = "fixed"
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idle_ki = 4e-05
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idle_kp = 0.0001
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idle_max_opening = 0.25
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idle_minimum_advance_deg = -5.0
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idle_rpm = 1400.0
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idle_spark_gain = 0.02
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ignition_map = [[0.0, 10.0], [15000.0, 40.0]]
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overrun_cut_rpm = 3500.0
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overrun_fuel_cut_enabled = false
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overrun_ignition_cut_enabled = true
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overrun_resume_rpm = 2400.0
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power_afr = 12.8
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rev_limit_enabled = true
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rev_limit_fuel_cut_enabled = false
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rev_limit_rpm = 13000.0
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rev_resume_rpm = 12990.0
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stoichiometric_afr = 14.7
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throttle_closing_rate = 0.0
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throttle_closing_time_constant_s = 0.0
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throttle_rate = 1000.0
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throttle_time_constant_s = 0.001
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[vehicle]
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air_density = 1.225
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clutch_capacity = 98.72945
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clutch_engagement_rate = 8.0
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drag_coefficient = 0.7
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final_drive_ratio = 2.7
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frontal_area = 0.65
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gear_ratios = [4.1, 2.7, 2.0, 1.55, 1.25, 0.98]
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gravity = 9.80665
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mass_kg = 240.0
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primary_reduction = 1.8
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rolling_resistance = 0.015
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rotational_inertia_kg_m2 = 1.2
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wheel_radius_mm = 320.0
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[fuel]
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system = "carburetor"
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pilot_jet_diameter_mm = 0.09349564
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main_jet_diameter_mm = 2.091829
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needle_jet_diameter_mm = 2.15284
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needle_low_scale = 0.944
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needle_mid_scale = 0.564
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needle_off_idle_scale = 0.995
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needle_quarter_scale = 0.835
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needle_tip_scale = 0.97
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needle_transition_scale = 1.6
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needle_upper_scale = 0.65
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bowl_capacity_kg = 0.1
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bowl_refill_kg_per_s = 0.1
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[[pipes]]
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id = "intake"
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diameter_mm = 75.0
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[[pipes]]
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id = "runners"
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diameter_mm = 35.0
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[[pipes]]
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id = "primaries"
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diameter_mm = 38.0
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[[pipes]]
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id = "tailpipe"
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diameter_mm = 60.0
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[cam.intake]
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points = [
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[0.000, 0.000000],
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[355.000, 0.000000],
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[360.000, 0.244639],
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[365.000, 0.912213],
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[370.000, 1.903207],
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[375.000, 3.118108],
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[380.000, 4.457402],
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[385.000, 5.821574],
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[390.000, 7.111111],
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[395.000, 8.226498],
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[400.000, 9.068222],
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[405.000, 9.536767],
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[407.500, 9.600000],
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[512.500, 9.600000],
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[517.500, 9.355361],
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[522.500, 8.687787],
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[527.500, 7.696793],
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[532.500, 6.481892],
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[537.500, 5.142598],
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[542.500, 3.778426],
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[547.500, 2.488889],
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[552.500, 1.373502],
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[557.500, 0.531778],
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[562.500, 0.063233],
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[565.000, 0.000000],
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[720.000, 0.000000]
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]
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[cam.exhaust]
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points = [
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[0.000, 0.000000],
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[145.000, 0.000000],
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[150.000, 0.192664],
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[155.000, 0.722110],
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[160.000, 1.515520],
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[165.000, 2.500077],
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[170.000, 3.602963],
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[175.000, 4.751361],
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[180.000, 5.872451],
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[185.000, 6.893417],
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[190.000, 7.741441],
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[195.000, 8.343705],
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[200.000, 8.627391],
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[201.250, 8.640001],
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[313.750, 8.640001],
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[318.750, 8.447337],
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[323.750, 7.917891],
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[328.750, 7.124481],
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[333.750, 6.139924],
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[338.750, 5.037038],
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[343.750, 3.888640],
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[348.750, 2.767550],
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[353.750, 1.746584],
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[358.750, 0.898560],
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[363.750, 0.296296],
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[368.750, 0.012610],
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[370.000, 0.000000],
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[720.000, 0.000000]
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]
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[valves.intake]
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mass_g = 35.0
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spring_rate_n_per_mm = 38.0
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damping_n_s_per_m = 24.0
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seat_force_n = 75.0
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maximum_lift_mm = 15.0
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seat_restitution = 0.005
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cam_restitution = 0.01
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stop_restitution = 0.01
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[valves.exhaust]
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mass_g = 35.0
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spring_rate_n_per_mm = 38.0
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damping_n_s_per_m = 24.0
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seat_force_n = 75.0
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maximum_lift_mm = 15.0
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seat_restitution = 0.005
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cam_restitution = 0.01
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stop_restitution = 0.01
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[valve_sound]
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mode_hz = 3600.0
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effective_mass_g = 180.0
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radiation_area_cm2 = 10.0
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damping_ratio = 0.9
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[[geometry.cylinders]]
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origin_mm = [ 0, 0, 0 ]
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tilt_deg = 0.0
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# intake
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[[geometry.pipes]]
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index = 0
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points_mm = [
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[ -257, 141.4889, -374.8 ],
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[ -57, 141.4889, -374.8 ]
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]
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# runners
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[[geometry.pipes]]
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index = 1
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points_mm = [
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[ 0, 141.4889, -288.4 ],
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[ 0, 141.4889, -38.4 ]
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]
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# primaries
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[[geometry.pipes]]
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index = 2
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points_mm = [
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[ 0, 141.4889, 48 ],
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[ 0.943, 138.6704, 60.5191 ],
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[ 3.6081, 134.2865, 71.5364 ],
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[ 7.7491, 128.4585, 81.1477 ],
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[ 13.1202, 121.3077, 89.4488 ],
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[ 19.4754, 112.9555, 96.5354 ],
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[ 26.5685, 103.5233, 102.5034 ],
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[ 34.1536, 93.1325, 107.4485 ],
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[ 41.9848, 81.9043, 111.4664 ],
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[ 49.8159, 69.9601, 114.6529 ],
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[ 57.4011, 57.4214, 117.1039 ],
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[ 64.4942, 44.4093, 118.915 ],
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[ 70.8493, 31.0454, 120.1821 ],
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[ 76.2204, 17.451, 121.0009 ],
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[ 80.3615, 3.7474, 121.4672 ],
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[ 83.0265, -9.944, 121.6767 ],
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[ 83.9696, -23.502, 121.7253 ]
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]
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# tailpipe
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[[geometry.pipes]]
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index = 3
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points_mm = [
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[ 131.4981, -55, 135.8 ],
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[ 1631.4981, -55, 135.8 ]
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]
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[[geometry.volumes]]
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id = "intake_plenum"
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center_mm = [ 0, 141.4889, -374.8 ]
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size_mm = [ 114, 50.7635, 172.8 ]
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[[geometry.volumes]]
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id = "exhaust_collector"
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center_mm = [ 100, -55, 135.8 ]
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size_mm = [ 62.9961, 62.9961, 62.9961 ]
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