Titanic4

Frosty Winter Mod adjusted physics v3

Jan 27th, 2021
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  1. SiiNunit
  2. {
  3. physics_data: .phdata
  4. {
  5. # Several changes have been made in v1.33:
  6.  
  7. # - Suspension springing linearity curves recalibrated and made slightly progressive to simulate air springs
  8. # - Chassis suspension damping linearity curve recalibrated to simulate different compression and rebound behaviour
  9. # - Chassis suspension travel and working point recalibrated to mimic actual real-life parameters
  10. # - Maximum steering lock increased slightly to calibrate trucks' turning circles
  11. # - Braking curve made more linear to better simulate actual braking behaviour at lower speeds
  12. # - Cabin suspension and damping reworked
  13. # - Cabin mass increased to 650kg for better simulation accuracy
  14. # - Wheel mass reduced for better accuracy
  15. # - Chassis suspension damping adjusted for better accuracy
  16. # - Trailer suspension reworked with resistant forces applied at the fifth wheel to replicate the effects of trailer chassis flex
  17.  
  18. # v1.35 Changelog:
  19.  
  20. # - 4-point truck cab suspension
  21. # - Increased cab mass to 700kg (~the average mass of different cabs with different heights)
  22. # - Overhaul of trailer/truck weight distribution algorithm
  23. # - Better/more realistic weight distribution for tandem axles to improve traction
  24. # - Realignment of tyre collisions with their models to ensure that trucks/trailers roll more accurately
  25. # - Several bug fixes
  26.  
  27. # Further physics improvements are constantly in the works to improve the driving simulation in-game.
  28.  
  29. version: 2
  30.  
  31. # These coeficients are used for computing autocentering wheel speed.
  32. # The faster vehicle moves and the more steering wheel is turned left or right
  33. # the higher autocentering speed is.
  34. # Given value of speed_coef is for 100km/h velocity (linear raise).
  35. # Given value of angle_coef is for maximum wheel turn (30degrees, linear raise).
  36. # Returning speed coeficient is computed by multiplication of both coeficients.
  37. # When result coeficient is 1, returning speed is exactly the same as full
  38. # turning speed. This balance points define natural limits of steering
  39. # dependent on vehicle speed.
  40. # Ratio_coef defines upper limit of result coeficient (ratio against player).
  41.  
  42. steering_speed_coef: 4.0
  43. steering_angle_coef: 2.0
  44. steering_ratio_coef: 0.95
  45.  
  46. # Maximum allowed rotation of the front wheels (degrees)
  47. max_visual_rotation: 38
  48.  
  49. # Modification of base steering sensitivity depending on truck speed.
  50. # Used only with relative steering (keyboard, joypad).
  51.  
  52. steering_sensitivity_multiplier_0kmh: 1.0
  53. steering_sensitivity_multiplier_100kmh: 0.4
  54. steering_sensitivity_multiplier_minimum: 0.2
  55. steering_sensitivity_multiplier_maximum: 10.0
  56.  
  57. # maximum allowed relative angles in degrees between truck and trailer joints
  58. fifth_wheel_pitch: 20
  59. fifth_wheel_roll: 3
  60. trailer_joint_pitch: 20
  61. trailer_joint_roll: 3
  62. spreader_joint_pitch: 5
  63. spreader_joint_roll: 3
  64.  
  65. # brake strength
  66. brake_torque_factor: 0.2
  67. # how much stronger braking is at low speeds
  68. braking_curve_peak_rel: 3.0
  69. # where approx. the braking curve bends
  70. brake_characteristic_rpm: 250
  71.  
  72. # front brakes are stronger by this factor
  73. brake_balance: 1.1
  74.  
  75. # maximum brake temperature
  76. max_brake_temperature: 200
  77. # how much brakes cool down
  78. brake_cooling_rate: 0.01
  79. # how much brakes warm up
  80. brake_friction_warming_rate: 4
  81.  
  82. cabin_max_pitch_angle_front: 2.25
  83. cabin_max_pitch_angle_rear: 2.25
  84. cabin_max_roll_angle: 2.25
  85.  
  86. cabin_suspension_travel: 0.05
  87. cabin_suspension_damping_factor: 1.0
  88. cabin_sway_bar_factor: 1.0
  89. cabin_cog_height_offset: 0.5
  90.  
  91. cabin_mass: 700
  92. wheel_mass: 100
  93.  
  94. # wheel suspension damping strength
  95. damping_scaling_front_factor: 1.0
  96. damping_scaling_rear_factor: 0.8
  97. damping_scaling_trailer_factor: 0.5
  98.  
  99. # anti-roll/sway-bar stiffness (only applies to the front axle)
  100. sway_bar_stiffness_factor: 1.0
  101.  
  102. # intensity of engine braking (not motor brake)
  103. thrust_characteristic_viscosity_factor: 1.0
  104. # transmission resistance
  105. transmission_viscosity_factor: 1.0
  106. # retarder resistance
  107. transmission_viscosity_retarder_factor: 1.0
  108. # rotational wheel resistance
  109. wheel_viscosity_factor: 1.0
  110. # clutch strength
  111. clutch_viscosity_factor: 1.0
  112. clutch_connected_viscosity_factor: 10
  113. manual_clutch_viscosity_factor: 0.5
  114. manual_clutch_connected_viscosity_factor: 10
  115. # torque converter strength
  116. torque_converter_viscosity_factor: 0.2
  117. torque_converter_locked_viscosity_factor: 10
  118. # relative magnitude of flywheel inertia
  119. inertia_scaling_const: 1.0
  120. # transmission inertia relative to the flywheel
  121. transmission_rel_flywheel_inertia: 0.5
  122.  
  123. # approximate air resistance: resistant_force = air_resistance * sqr(speed)
  124. air_resistance: 3
  125.  
  126. # friction parameters
  127. # stiffness of tyre material
  128. bristle_stiffness_longitudinal_factor: 1
  129. bristle_stiffness_lateral_factor: 1
  130. # damping of tyre deformation
  131. bristle_damping_longitudinal_factor: 1
  132. bristle_damping_lateral_factor: 1
  133. # coefficients related to wheel slipping
  134. slip_longitudinal_factor: 0.01071
  135. slip_lateral_factor: -0.20891
  136.  
  137. }
  138. }
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