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Physics [Question] New suspension got weird

Discussion in 'Assetto Corsa Modding Discussions' started by Barracuda4Surf, Mar 29, 2017.

  1. Barracuda4Surf

    Barracuda4Surf
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    Hi guys,

    I am just beginning to learn more about the AC suspension system and I try to fiddle around with mods to get the hang of it to get cars to my personal liking.

    So I got this car and I didn't like the suspension and I tried to adjust it but I wasn't satisfied.
    Now I copied a complete suspension fom another comparable car and adjusted Track, Wheelbase and CG to the corresponding values.
    But weird things are happening now: when the AI tries to start a race or to get out of the pit it goes in full left or right turn. This keeps happening regardless of the track. I saw this once with a version of the M6 GT3 as well.
    Could someone explain me what is happening and maybe how to get rid of it?

    Much appreciated, thank you in advance!

    Regards,
    Simon
     
  2. Grabarz

    Grabarz

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    I'm not sure but probably some parts of suspension are colliding with car body -which causes some kind of errors to AI
     
  3. Barracuda4Surf

    Barracuda4Surf
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    Hm, I thought the bodies are strictly optical suspensionwise?
     
  4. Grabarz

    Grabarz

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    You have right but since You messed with weight distribution and suspension from other car that can be reason, maeby couple of signs are missing, caused by imperfection of coping

    My solution idea:
    rollback your suspension file
    Open the Suspension file of the car which will be used as better one
    Open the suspension file of the car which is going to upgrade
    copy only values 1 by 1 from first car and paste them into second car file

    sounds lame, but try that :D
     
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  5. Barracuda4Surf

    Barracuda4Surf
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    That will be a LOT of work, but thx anyways ^^
     
  6. aphidgod

    aphidgod
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    Turns out doing a complex job well takes work... who knew?
     
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  7. Barracuda4Surf

    Barracuda4Surf
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    Yeah, right...
    Look, I just wanted to ask if someone experienced the same problem and asked for help. I know that this is a lot of work and I am working on physics since months. Yes, it is very complex and thats the exact reason I asked. Thank you for your contribution
     
  8. AccAkut

    AccAkut

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    Without pictures from ingame or the suspension editor we can't help you much

    I guess you inadvertently build something that collapses immediately on loading
     
  9. Barracuda4Surf

    Barracuda4Surf
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    SOLVED!
    Was about to take the pictures as I got an idea. Apparantly you have to adjust the [Controls] section of the car.ini as well to the new suspension (if anyone is interested).
    Thank you nonetheless for your efforts!
     
  10. Fat-Alfie

    Fat-Alfie

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    You should be adjusting every section of every file ;) (or at the very least, checking)
     
  11. Barracuda4Surf

    Barracuda4Surf
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    Yeah, I learned that now.. ^^
    As @aphidgod mentioned it IS very complex stuff, and I am just digging into it :)
     
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  12. Fat-Alfie

    Fat-Alfie

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    It's very satisfying, and interesting though, don't you think? I am just starting my first scratch built car physics, and it really is like magic when you get it right!

    I tried swapping various kunos suspension files onto my car, but it didn't start to feel right until I tried making the suspension match the car. Once the pivot points were all in the correct place, the car immediately felt better, more 'car' :)
     
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  13. AccAkut

    AccAkut

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    I did the suspension of the KRB mostly by eyeballing the geometry, and the knowledge that its front end was somewhat "inspired" by the Porsche 911. Plus I found good highres photos of the used S80 hub on ebay, from which, starting from the main bearing size, I was able to reconstruct and measure the hub and its mounting points.
     
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