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Question Need help with surge axis

Discussion in 'SimTools DIY Version' started by Krzysztof Dej, Jul 11, 2022.

  1. Krzysztof Dej

    Krzysztof Dej Active Member

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    Hi, I have a problem with the rbr game. Everything works fine in Dirt or Assetto. In the rbr os surge it behaves as follows: when accelerating, it feels a nice jerk of the gearshift and a smooth yawning backward when accelerating, the problem arises when braking. The beginning behaves correctly, the seat tilts forward, but after a while you can feel a sudden forward thrust, such as when stopping. The problem seems to be minor or does not occur when I have the gas pressed during braking. Could someone help me choose the filter settings, or help me overcome this. When I increase the smoothing filter. The problem seems to be disappearing, but so is that cool punch when shifting gear. So I don't want to smooth this axis that much. Maybe someone had a similar problem?
    Krzysztof Dej, Jul 11, 2022
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    I don't use RBR, but likely it may help if you post all your settings, including Axis Assignments and Tuning Center.
    noorbeast, Jul 11, 2022
    #2
  3. Gadget999

    Gadget999 Well-Known Member

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    do you have a video of the problem ?

    how many dof is your sim ?
    Gadget999, Jul 11, 2022
    #3
  4. Krzysztof Dej

    Krzysztof Dej Active Member

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    Ok I will try to record it. I have 2dof with 200w dc motors with h bridge controllers here r my settings sorry for photos quality

    Attached Files:

    Krzysztof Dej, Jul 11, 2022
    #4
  5. Krzysztof Dej

    Krzysztof Dej Active Member

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    Krzysztof Dej, Jul 11, 2022
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  6. yobuddy

    yobuddy Well-Known Member Staff Member Moderator SimAxe Beta Tester SimTools Developer Gold Contributor

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    Set the percent for pitch to '0' and give it another shot.
    With the idea that we can turn stuff off until we find what is causing it.
    Chat soon,
    yobuddy
    yobuddy, Jul 11, 2022
    #6
  7. Gadget999

    Gadget999 Well-Known Member

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    technically speaking a 2DOF can not simulate surge

    what it will do is add pitch when you are braking

    however if there is already pitch and heave and surge happening it will exaggerate the movement on that axis

    i may have read it wrong but you may have allocated 105 % to the axis which may exaggerate some of the movements

    Like youbuddy suggested it might be worth assigning 0% to the axis and turning them up one at a time till your motion seems more realistic

    good luck - I am sure you will get it sorted :)
    Gadget999, Jul 12, 2022
    #7
  8. Krzysztof Dej

    Krzysztof Dej Active Member

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    When I remove surge. Pitch doesn't work. Pitch and roll is for The slope of the terrain
    But no matter if I turn off pitch. Surge is still working random. Once good once with those spikes. I will try to define all axis once again
    Krzysztof Dej, Jul 13, 2022
    #8
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Try increasing the Pitch allocation in Axis Assignments to something like 30-35 and remove the filters, in the Tuning Center try Pitch at 5-10, that should move and you can refine from there.

    See the tuning tips in the FAQs, as you really should first capture the initial TC values, I am just taking a ballpark guess: https://www.xsimulator.net/community/faq/steps-to-create-a-motion-profile.228/
    noorbeast, Jul 13, 2022
    #9
  10. Gadget999

    Gadget999 Well-Known Member

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    does RBR output all 6 DOF ?
    Gadget999, Jul 13, 2022
    #10
  11. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    • Like Like x 1
    noorbeast, Jul 13, 2022
    #11
  12. Krzysztof Dej

    Krzysztof Dej Active Member

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    I know that very well. Read it few times. For now I don't know what is wrong with rbr. Because other games are great and there is always something here. For today I made a new axis-by-axis motion profile as in the manual (like last time ) and everything works fine) I don't know why. Maybe amplifying signals including. Game manager works like this or game update. Anyway, I will have to do a zero-based signal capture some times. It's great and when it's working it's absolutely fun
    Form me i was create profile with tarmac setup and when change to gravel setup i fell like the car is softer its fantastic
    Krzysztof Dej, Jul 13, 2022
    #12
  13. Krzysztof Dej

    Krzysztof Dej Active Member

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    And after one day off. Things wrong again. :/
    Krzysztof Dej, Jul 15, 2022
    #13