What does the Temperatures entry mean in *.TBC file?

Discussion in 'Other' started by cosimo, Apr 16, 2014.

  1. cosimo

    cosimo Registered

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    If I find something like this in a TBC file:

    Temperatures = (85, 24)

    What do the 85 and 24 mean?
    Is 85 optimal temperature? What about 24? a +/- range maybe?
     
  2. GauchoRS

    GauchoRS Registered

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    Found this in Clio_PC

    Temperatures=(85.0, 22.0) // Optimum operating temperature for peak forces (Celsius), starting temperature

    may be there is other useful information

    CamberLatLong=(3.30, 0.097, 0.480) // Peak camber angle, lateral gain at peak, longitudinal loss at 90 degrees
    RollingResistance=1300 // Resistance torque (Nm) per unit deflection (m) on ground
    PneumaticTrail=5.625e-6 // Pneumatic trail per unit load (m/N), adjusted based on slip
    HeatBasePeak=(0.15, 0.01) // Base peak slip to compute friction heat, fraction of base to use (0.0=use dynamic peak slip only)
    Heating=(0.86e-0, 1.42e-3) // Heat caused by (rolling, friction)
    Transfer=(6.75e-3, 1.90e-3, 3.10e-4) // Heat transfer to (road, static air, moving air)
    HeatDistrib=(11.0, 96.0) // (Max camber angle, max off-pressure) that affects heat distribution (higher number -> less temperature difference)
    AirTreadRate=0.0065 // Heat transfer between tread and inside air
    WearRate=2.000e-7 // Wear rate constant
    WearGrip1=(0.9800,0.9760,0.9740,0.9720,0.9700,0.9680,0.9660,0.9645) // Grip at 6/13/19/25/31/38/44/50% wear (defaults to 0.980->0.844), grip is 1.0 at 0% wear
    WearGrip2=(0.9635,0.9630,0.9622,0.9605,0.9540,0.9360,0.8600,0.7750) // Grip at 56/63/69/75/81/88/94/100% wear (defaults to 0.824->0.688), tire bursts at 100% wear
    Softness=0.65 // Softness is now just for AI strategic use
    AIGripMult=1.000 // Grip multiplier for AI vehicles (due to tire model simplification)
    Temperatures=(85.0, 22.0) // Optimum operating temperature for peak forces (Celsius), starting temperature
    OptimumPressure=(140.0, 0.0180) // Base pressure to remain flat on ground at zero deflection, and multiplier by load to stay flat on ground
    GripTempPress=(1.95, 0.80, 0.50) // Grip effects of being below temp, above temp, and off-pressure (higher number -> faster grip dropoff)
     
  3. lemming77

    lemming77 Registered

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    This all remains pretty much unchanged from rF1, as the old tire model from rF1 is still present, but only used by the AI. So the only thing in the TBC file that affects how the tires are for human drivers is the starting temperature.
     
  4. newtonpg

    newtonpg Registered

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    Extrated from M2009_TIRES.TBC
    -------------------------------------------------
    [COMPOUND]
    Name="S8B (Dry)"
    FRONT:
    TGM="Michelin S8B 21-65-18"
    -
    REAR:
    TGM="Michelin S8B 24-65-18"
    -------------------------------------------------

    Extrated from Michelin S8B 21-65-18.TGM
    -------------------------------------------------
    [QuasiStaticAnalysis]
    -
    //GaugePressure=0
    GaugePressure=140000 // Points to generate a lookup Table. Ideally with 5 reference points
    GaugePressure=190000 // going from absolute Min (flat) to absolute Max (before blow).
    GaugePressure=240000 // Values here appear to be COLD, OPT, WARM | 190000 Pascal = 190kPa = 27.6 PSI
    //GaugePressure=280000
    -
    CarcassTemperature=283.15 // Another lookup table referencing Minimum Temp °K = 10 °C and
    CarcassTemperature=363.15 // Optimum (?) Temp °K = 90 °C
    //CarcassTemperature=423.15
    -
    [Realtime]
    StaticCurve=(173, 0.61, 373, 1.176, 673, 0.61) // Min,Optimum,Max (Temp°K, Grip) | Opt = 100°C, 1.176 (100% grip)
    - //That I Suspect to be TyreRubberTemp (see 25April2014 Lazza's Motec plugin)
    -------------------------------------------------


    Edit: Remarks after reading Tyre tool tutorial.
    http://downloads.imagespaceinc.com/rf2/modsresources/rF2_TGM_TyreTool_QuickStart_V3.pdf
     
    Last edited by a moderator: Apr 30, 2014
  5. cosimo

    cosimo Registered

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    Very interesting, thanks!

    Would be cool if ISI staff could confirm.
     
  6. Lazza

    Lazza Registered

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    The second figure is definitely the starting temperature (°C), has been since rF1. As lemming77 said this is one of the very few parameters in the TBC that still affects 'human' tyres. The optimum temp is only for AI now.
     

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