1. Issues with the game?
    Check the Known Issues list before reporting!

    Dismiss Notice
  2. Before reporting issues or bugs, please check the up-to-date Bug Reporting Thread for the current version.
    0.25 Bug Reporting thread
    Solutions and more information may already be available.

Wheels vibrate violently when transmission is locked (transbrake/park) while on ice surface

Discussion in 'Troubleshooting: Bugs, Questions and Support' started by fuzelol, Aug 24, 2019.

  1. fuzelol

    fuzelol
    Expand Collapse

    Joined:
    Aug 17, 2013
    Messages:
    13
    Here's a weird one. While your wheels are moving at speed (~20+ km/h) on a slippery surface, if you lock the transmission via a transbrake or putting it in park, the wheels will start to vibrate back and forth.

    How to reproduce:
    1. Spawn on Gridmap and drive to the ice surface
    2. Spawn the Ibishu 200BX with Base (A) config
    3. Put it in reverse, rev to 4-5,000
    4. Put in park
    5. Observe
    Here's a video showing the bug:


    It's a very very small issue but thought I'd report it anyway.
     
  2. Kueso

    Kueso
    Expand Collapse

    Joined:
    Oct 14, 2016
    Messages:
    4,229
    have you tried to reproduce this bug w/out mods?
     
  3. fuzelol

    fuzelol
    Expand Collapse

    Joined:
    Aug 17, 2013
    Messages:
    13
    Yes, running in safe mode gives the same result
     
  4. Kueso

    Kueso
    Expand Collapse

    Joined:
    Oct 14, 2016
    Messages:
    4,229
    interesting
    ill have to check this out
     
  5. stenyak

    stenyak
    Expand Collapse
    Global Moderator
    BeamNG Team

    Joined:
    Aug 6, 2012
    Messages:
    1,442
    Does not happen here with the stock vehicle (no mods). Make sure you eliminate all traces of incorrectly installed mods by doing a clean reinstall: https://wiki.beamng.com/BeamNG_FAQ#How_do_I_perform_a_clean_reinstall.3F

    Additionally, note that any modifications to vehicles can lead to mechanical issues. The effect you expose in that video (in a clearly non-default vehicle) also happens in real life given the appropriate modifications:
     
  6. fuzelol

    fuzelol
    Expand Collapse

    Joined:
    Aug 17, 2013
    Messages:
    13
    It still happens to me in safe mode (no mods active) so it might be hardware related, but it seems like a weird thing for hardware to affect.

    I also don't think it is axle tramp or anything like that because if you do it slow motion you can see the wheel bounce back and forth instead of rotating in one direction:
     
  7. Goosah

    Goosah
    Expand Collapse
    Global Moderator
    BeamNG Team

    Joined:
    Aug 30, 2013
    Messages:
    790
    Good find! I discovered why this is happening. There was no drivetrain damping added into park and transbrake mode. Friction itself is a form of damping, so the lack of added damping only became apparent on ice. I've now added some damping and it looks way more stable :)
     
    • Like Like x 1
  8. fuzelol

    fuzelol
    Expand Collapse

    Joined:
    Aug 17, 2013
    Messages:
    13
    Glad I could help, even though it is a very very minor issue :D
     
    • Like Like x 1
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice