# Engine definition. Dimensional keys state their units.
schema_version = 2
id = "single-650"
name = "650 cc / big thumper"
category = "Singles / four-stroke"
description = "Estimated concept calibration / EFI"
order = 18
cycle = "four_stroke"

[simulation]
cells_per_meter = 20.0

[engine]
bank_angle_deg = 60.0
cylinders = 1
initial_rpm = 1400.0
initialize_phased_charge = true
layout = "inline"
maximum_load_torque_nm = 30.0
minimum_substeps = 1
phase_degrees = [0.0]
pipe_damping = 1.0
starter_torque_nm = 16.29701
throttle_diameter_mm = 65.0
topology = "collector"

[cylinder]
afr = 14.7
ambient_temperature_k = 300.0
bore_mm = 100.0
burn_duration_deg = 60.0
burn_start_deg = 5.0
compression = 10.0
energy_variation = 0.05
exhaust_valve_count = 1
exhaust_valve_diameter_mm = 32.0
fuel_lhv_j_per_kg = 4.4e+07
heat_transfer = 100.0
intake_valve_count = 1
intake_valve_diameter_mm = 38.0
misfire_probability = 0.0
rod_mm = 149.4
stroke_mm = 83.0
wall_area = 0.02
wiebe_a = 5.0
wiebe_m = 2.0

[crankshaft]
friction_constant_nm = 2.607522
friction_quadratic_nm_s2 = 0.0
friction_viscous_nm_s = 0.002607522
inertia_kg_m2 = 0.07822565

[ecu]
idle_base_opening = 0.05
idle_control = "feedback"
idle_ki = 4e-05
idle_kp = 0.0001
idle_max_opening = 0.25
idle_minimum_advance_deg = -5.0
idle_rpm = 1000.0
idle_spark_gain = 0.02
ignition_map = [[0.0, 10.0], [15000.0, 40.0]]
overrun_cut_rpm = 3500.0
overrun_fuel_cut_enabled = true
overrun_ignition_cut_enabled = false
overrun_resume_rpm = 2400.0
power_afr = 12.8
rev_limit_enabled = true
rev_limit_fuel_cut_enabled = true
rev_limit_rpm = 6500.0
rev_resume_rpm = 6250.0
stoichiometric_afr = 14.7
throttle_closing_rate = 0.0
throttle_closing_time_constant_s = 0.0
throttle_rate = 1000.0
throttle_time_constant_s = 0.001

[vehicle]
air_density = 1.225
clutch_capacity = 143.4137
clutch_engagement_rate = 8.0
drag_coefficient = 0.7
final_drive_ratio = 2.7
frontal_area = 0.65
gear_ratios = [4.1, 2.7, 2.0, 1.55, 1.25, 0.98]
gravity = 9.80665
mass_kg = 240.0
primary_reduction = 1.8
rolling_resistance = 0.015
rotational_inertia_kg_m2 = 1.2
wheel_radius_mm = 320.0

[fuel]
system = "injection"

[[pipes]]
id = "intake"
diameter_mm = 75.0

[[pipes]]
id = "runners"
diameter_mm = 35.0

[[pipes]]
id = "primaries"
diameter_mm = 38.0

[[pipes]]
id = "tailpipe"
diameter_mm = 60.0

[cam.intake]
points = [
  [0.000, 0.000000],
  [340.000, 0.000000],
  [345.000, 0.181760],
  [350.000, 0.686080],
  [355.000, 1.451520],
  [360.000, 2.416640],
  [365.000, 3.520000],
  [370.000, 4.700160],
  [375.000, 5.895680],
  [380.000, 7.045120],
  [385.000, 8.087040],
  [390.000, 8.960000],
  [395.000, 9.602560],
  [400.000, 9.953280],
  [402.500, 10.000000],
  [527.500, 10.000000],
  [532.500, 9.818240],
  [537.500, 9.313920],
  [542.500, 8.548480],
  [547.500, 7.583360],
  [552.500, 6.480000],
  [557.500, 5.299840],
  [562.500, 4.104320],
  [567.500, 2.954880],
  [572.500, 1.912960],
  [577.500, 1.040000],
  [582.500, 0.397440],
  [587.500, 0.046720],
  [590.000, 0.000000],
  [720.000, 0.000000]
]

[cam.exhaust]
points = [
  [0.000, 0.000000],
  [130.000, 0.000000],
  [135.000, 0.151570],
  [140.000, 0.573509],
  [145.000, 1.216659],
  [150.000, 2.031862],
  [155.000, 2.969959],
  [160.000, 3.981794],
  [165.000, 5.018207],
  [170.000, 6.030042],
  [175.000, 6.968139],
  [180.000, 7.783342],
  [185.000, 8.426492],
  [190.000, 8.848431],
  [195.000, 9.000001],
  [325.000, 9.000001],
  [330.000, 8.848431],
  [335.000, 8.426492],
  [340.000, 7.783342],
  [345.000, 6.968139],
  [350.000, 6.030042],
  [355.000, 5.018207],
  [360.000, 3.981794],
  [365.000, 2.969959],
  [370.000, 2.031862],
  [375.000, 1.216659],
  [380.000, 0.573509],
  [385.000, 0.151570],
  [390.000, 0.000000],
  [720.000, 0.000000]
]

[valves.intake]
mass_g = 35.0
spring_rate_n_per_mm = 38.0
damping_n_s_per_m = 24.0
seat_force_n = 75.0
maximum_lift_mm = 15.0
seat_restitution = 0.005
cam_restitution = 0.01
stop_restitution = 0.01

[valves.exhaust]
mass_g = 35.0
spring_rate_n_per_mm = 38.0
damping_n_s_per_m = 24.0
seat_force_n = 75.0
maximum_lift_mm = 15.0
seat_restitution = 0.005
cam_restitution = 0.01
stop_restitution = 0.01

[valve_sound]
mode_hz = 3600.0
effective_mass_g = 180.0
radiation_area_cm2 = 10.0
damping_ratio = 0.9

[[geometry.cylinders]]
origin_mm = [ 0, 0, 0 ]
tilt_deg = 0.0

# intake
[[geometry.pipes]]
index = 0
points_mm = [
  [ -259, 192.1222, -380 ],
  [ -59, 192.1222, -380 ]
]

# runners
[[geometry.pipes]]
index = 1
points_mm = [
  [ 0, 192.1222, -290 ],
  [ 0, 192.1222, -40 ]
]

# primaries
[[geometry.pipes]]
index = 2
points_mm = [
  [ 0, 192.1222, 50 ],
  [ 0.9799, 188.5111, 65.2858 ],
  [ 3.7492, 182.718, 78.469 ],
  [ 8.0523, 174.9286, 89.7037 ],
  [ 13.6334, 165.3287, 99.144 ],
  [ 20.2371, 154.1038, 106.9438 ],
  [ 27.6077, 141.4398, 113.2573 ],
  [ 35.4896, 127.5224, 118.2383 ],
  [ 43.627, 112.5371, 122.0411 ],
  [ 51.7645, 96.6697, 124.8196 ],
  [ 59.6463, 80.106, 126.7279 ],
  [ 67.0169, 63.0315, 127.9199 ],
  [ 73.6206, 45.632, 128.5498 ],
  [ 79.2018, 28.0933, 128.7716 ],
  [ 83.5049, 10.6009, 128.7393 ],
  [ 86.2742, -6.6594, 128.607 ],
  [ 87.2541, -23.502, 128.5287 ]
]

# tailpipe
[[geometry.pipes]]
index = 3
points_mm = [
  [ 131.4981, -55, 140 ],
  [ 1631.498, -55, 140 ]
]

[[geometry.volumes]]
id = "intake_plenum"
center_mm = [ 0, 192.1222, -380 ]
size_mm = [ 118, 47.081, 180 ]

[[geometry.volumes]]
id = "exhaust_collector"
center_mm = [ 100, -55, 140 ]
size_mm = [ 62.9961, 62.9961, 62.9961 ]