WIP Beta released Torque curve spreadsheet, Update 5/2019 V5 experimental

Discussion in 'Content Creation' started by fufsgfen, Feb 15, 2018.

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Is this useful to you

Poll closed Jun 8, 2018.
  1. Yes

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  2. No

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  1. Capkirk

    Capkirk
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    Joined:
    Nov 19, 2017
    Messages:
    673
    When does your spreadsheet apply the turbo torque to the engine? Because after a quick read through of the game lua, it seems like the turbo coef has friction and dynamic friction applied to it separately
     
  2. fufsgfen

    fufsgfen
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    Joined:
    Jan 10, 2017
    Messages:
    6,782
    That version might not be even in operational order, but formula is like this currently it seems =(K3/(F3*J3*0.06+1)+($B$7+$B$8*$B$2*D3)-E3)*IF(F3>0,$C$8,1) it is almost a year since I did play around with that and I might need to put few hours figuring out what I have done there :D

    I need to look into that lua, there could be even changes to game that have happened in almost a year, so maybe that friction stuff solves it. I remember that I did play around a lot with how to apply friction.

    Definitely would need to calculate friction after have removed added power by turbo, not sure but I think that does it already or then it is just buggered.

    Update: Yeah, it does first reduce torque by amount of turbo, then calculates friction from NA power, so that should be correct way, at least in theory. Also 6% torque increase for each PSI, now that makes things tough of course, 6% reduction for each PSI is not same as 6% increase and there it goes all wrong.

    Say 10 psi would be 60%, increase 100hp by 60% and you are at 160hp.

    Reduce 60% from 160hp and you are not at 100hp though.

    So we have:
    Percent of increase Y
    Percent of decrease X
    New torque Z

    X = Z ??? Y???

    Need to study more math, but maybe there just is one unknown too many?

    Update 2: Nope, I had actually studied same math year ago, just forgot all about it, calculation should be correct according to this http://web.mnstate.edu/peil/MDEV102/U4/S34/S344.html
    Needs more scalp scratching I guess.
     
    #22 fufsgfen, May 25, 2019
    Last edited: May 25, 2019
    • Informative Informative x 1
  3. arno64160

    arno64160
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    Joined:
    Apr 4, 2021
    Messages:
    1
    hey there
    I figured out an issue with the sheet that i fixed right after on the data exporter !
    it showed code that points to next cell instead of the correct cell we needed... i mean that for example it showed 1000 rpm then right under 1000 rpm again and it crashed all the curve like this
    so i fixed this then reincremented for the rest of the curve
    no need to thank that i also put the rpm incrementation to 100 up to 9000 rpm
    for those who take care of this thanks in advance...
    arno64160
     

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