Unsolved Air Suspension Mod - needs Help

Discussion in 'Mod Support' started by Fruit91, Apr 25, 2021.

  1. Fruit91

    Fruit91
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    Joined:
    Dec 18, 2014
    Messages:
    9
    (REPOST BECAUSE WRONG FORUM SECTION)

    Hello community


    I have started to modify an Air Suspension mod.
    However, I now have the problem what you see in the picture that the rear axle is too high with air out.
    Can someone help me there which numbers I have to change so that I come further down on the rear axle?

    Just in case, if i but no struts in the car is at its lowest level (see screenshot) how can i adjust this setting so the car can go lower as it is right now? (so i may need to change something elsewhere?)


    I also add the codes here so u can maybe go through and tell me what i have to change so i can go lower with the air susp.



    Code:
    {
    "W124_coilover_R_air": {
        "information":{
            "authors":"BeamNG",
            "name":"Air Rear Coilovers",
            "value":2350,
        },
        "slotType" : "W124_coilover_R",
    
        "flexbodies": [
            ["mesh", "[group]:", "nonFlexMaterials"],
            ["W124_coilover_rear", ["W124_shockbottom_R","W124_shocktop_R"]],
        ],
        "variables": [
            ["name", "type", "unit", "category", "default", "min", "max", "title", "description"],
            ["$airbag_R_pressure", "range", "psi", "Suspension", 65, 10, 100, "Airbag Pressure Default", "Starting Pressure of the Airbag", {"stepDis":0.5, "subCategory":"Rear"}],
        ["$airbag_R_pressure_low", "range", "psi", "Suspension", 0, 0, 75, "Airbag Pressure Low", "Starting Pressure of the Airbag", {"stepDis":0.5, "subCategory":"Rear"}],
        ["$airbag_R_pressure_high", "range", "psi", "Suspension", 100, 25, 350, "Airbag Pressure High", "Starting Pressure of the Airbag", {"stepDis":0.5, "subCategory":"Rear"}],
    
        ],
        "airbagBeamData": [
            ["beamName", "groupName"],
            ["airbag_RL", "rearAxle"],
            ["airbag_RR", "rearAxle"],
        ],
        "controller": [
            ["fileName"],
            ["vehicleController", {}],
        ["pneumatics", {"name":"airbags"}],
        ],
            "airbags": {
                "pressureLevels":[
                ["name", "pressure"],
                ["default", "$airbag_R_pressure"],
                ["minPressure", "$airbag_R_pressure_low"],
                ["maxPressure", "$airbag_R_pressure_high"],
            ],
            "increaseRate": 25,
            "decreaseRate": 37,
            "pressuredBeams":"airbagBeamData",
            "groupSounds": "airbagBeamSoundData",
        },
        "airbagBeamSoundData":[
            ["groupName", "soundUp", "soundDown", "volumeUp", "volumeDown"],
            ["rearAxle", "event:>Vehicle>Pneumatics>Suspension_Up", "event:>Vehicle>Pneumatics>Suspension_Down", 0.06, 0.01],
     
        ],
        "nodes": [
             ["id", "posX", "posY", "posZ"],
             //--REAR RUNNING GEAR--
             {"collision":true},
             {"selfCollision":false}
             {"nodeMaterial":"|NM_METAL"},
             {"frictionCoef":0.5},
             //multilink suspension
             {"nodeWeight":8.0},
             {"group":"W124_lowermounts_a_R"},
             //trailing arm
             ["rx1rr", -0.57, 0.98, 0.265{"group":["W124_lowerarm_R","W124_subframe_R"]}],
             ["rx1r", -0.12, 1.11, 0.26{"group":["W124_lowerarm_R","W124_subframe_R","W124_diff_R"],"selfCollision":false}],
             ["rx1l", 0.12, 1.11, 0.26{"group":["W124_lowerarm_R","W124_subframe_R","W124_diff_R"],"selfCollision":false}],
             ["rx1ll", 0.57, 0.98, 0.265{"group":["W124_lowerarm_R","W124_subframe_R"]}],
     
             //--REAR INDEPENDENT SUSPENSION--
             {"collision":true},
             {"selfCollision":false}
             //rear hub
             {"nodeWeight":4.1},
             {"group":"W124_lowerarm_a_RR"},
             {"selfCollision":true},
             ["rh1r",-0.70, 1.39, 0.25{"group":["W124_lowerarm_R","W124_hub_R"]}],
             {"group":"W124_lowerarm_a_RL"},
             ["rh1l", 0.70, 1.39, 0.25{"group":["W124_lowerarm_R","W124_hub_R"]}],
             {"group":"W124_upperarm_RR"},
             ["rh2r",-0.70, 1.39, 0.35{"group":["W124_lowerarm_R","W124_hub_R"]}],
             {"group":"W124_upperarm_RL"},
             ["rh2l", 0.70, 1.39, 0.35{"group":["W124_lowerarm_R","W124_hub_R"]}],
             //nodeCoupling
             {"nodeWeight":2.1},
             //["rh3r",-0.71, 1.37, 0.25{"group":["W124_hub_R"]}],
             //["rh3l", 0.71, 1.37, 0.25{"group":["W124_hub_R"]}],
             //
             {"nodeWeight":4.75},
             {"group":"W124_shockbottom_R"},
             //rally coilover adds weight to rh4
             ["rh4r",-0.565, 1.38, 0.15{"group":["W124_shockbottom_R","W124_hub_R"]}],
             ["rh4l", 0.565, 1.38, 0.15{"group":["W124_shockbottom_R","W124_hub_R"]}],
             {"group":"W124_hub_R"},
             {"nodeWeight":3.1},
             ["rh5r",-0.73, 1.51, 0.20{"group":["W124_hub_R","W124_lowerarm_R"]}],
             ["rh5l", 0.73, 1.51, 0.20{"group":["W124_hub_R","W124_lowerarm_R"]}],
             {"selfCollision":false},
             {"group":""},
        ],
        "beams": [
            ["id1:", "id2:"],
        //AIRBAGS
        {"beamPrecompression":0.7, "beamType":"|PRESSURED"},
        {"beamSpring":0,"beamDamp":0,"beamDeform":200000,"beamStrength":350000},
            {"beamLimitSpring":0,"beamLimitDamp":0},
        {"breakGroup":"airbag_R_break"},
            {"breakGroupType":0},
            ["rh4r","r1rr", {"pressurePSI":"$airbag_R_pressure","surface":0.027,"volumeCoef":3.5,
            "name":"airbag_RL","soundFile":"event:>Vehicle>Suspension>semi_01>spring_compress_01","colorFactor":0.8,"attackFactor":10,"volumeFactor":0.3,"decayMode":0,"decayFactor":3.5,"pitchFactor":1,"maxStress":20}],
            ["rh4l","r1ll", {"pressurePSI":"$airbag_R_pressure","surface":0.027,"volumeCoef":3.5,
            "name":"airbag_RR","soundFile":"event:>Vehicle>Suspension>semi_01>spring_compress_01","colorFactor":0.8,"attackFactor":10,"volumeFactor":0.3,"decayMode":0,"decayFactor":3.5,"pitchFactor":1,"maxStress":20}],
            {"breakGroupType":0},
            {"breakGroup":""},
            {"beamPrecompression":1, "beamType":"|NORMAL", "beamLongBound":1, "beamShortBound":1},
            //dampers
            {"beamPrecompression":1, "beamType":"|BOUNDED", "beamLongBound":1.0, "beamShortBound":1.0},
            {"beamSpring":0,"beamDamp":"$damp_bump_R"},
            {"beamLimitSpring":0,"beamLimitDamp":0},
            ["rh4r","r1rr"{"beamDampRebound":"$damp_rebound_R","beamDampVelocitySplit":0.2,"beamDampFast":"$=$damp_bump_R/3","beamDampReboundFast":"$=$damp_rebound_R/3","dampCutoffHz":500}],
            ["rh4l","r1ll"{"beamDampRebound":"$damp_rebound_R","beamDampVelocitySplit":0.2,"beamDampFast":"$=$damp_bump_R/3","beamDampReboundFast":"$=$damp_rebound_R/3","dampCutoffHz":500}],
            //harder bump stop
            {"beamPrecompression":1, "beamType":"|BOUNDED"},
            {"beamSpring":0,"beamDamp":2200},
            {"beamLimitSpring":0,"beamLimitDamp":0},
            ["rh4r","r1rr"{"longBoundRange":0.03,"shortBoundRange":0.07,"boundZone":0.02,"beamLimitDampRebound":0,"dampCutoffHz":500}],
            ["rh4l","r1ll"{"longBoundRange":0.03,"shortBoundRange":0.07,"boundZone":0.02,"beamLimitDampRebound":0,"dampCutoffHz":500}],
            {"beamPrecompression":1, "beamType":"|NORMAL", "beamLongBound":1.0, "beamShortBound":1.0},
        ],
    },
    }

    Suspension Mod from Kona61
    BeamNGdriveScreenshot20210425-17424799.png
     
    #1 Fruit91, Apr 25, 2021
    Last edited: Apr 26, 2021
  2. TC203

    TC203
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    Joined:
    Sep 9, 2020
    Messages:
    131
    Have you tried putting the “beamPrecompression” down in your beams. That might make it lower.
     
  3. Fruit91

    Fruit91
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    Joined:
    Dec 18, 2014
    Messages:
    9
    Yes it makes it lower but than i cant lower the "air bags" i want to use the air bags otherwise i wouldnt use the Mod :) Thanks
     
  4. TC203

    TC203
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    Joined:
    Sep 9, 2020
    Messages:
    131
    Ok. I’m not sure how otherwise unless you moved the nodes closer together or something. Reducing the pressure would probably just ruin the suspension.
     
  5. Fruit91

    Fruit91
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    Joined:
    Dec 18, 2014
    Messages:
    9
    Thats the thing, it works perfectly but i want to adjust the rear axle so i cant go much lower :(
    --- Post updated ---
    Maybe if u dont know how to solve it, u know someone ?
     
  6. Glockachu

    Glockachu
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    Joined:
    Sep 2, 2021
    Messages:
    1
    i dont know if im too late but still gonna try it..

    are you sure the rear axle's movement isnt obstructed by the chassis? from a car mechanics point of view (and not a modder): many cars need to be 'notched' to go lower than 'low' if you get what i mean.
    frame notching means that the rear axle/differential or half shafts are prob hitting the chassis and you need to make a hole/dent (dont know how to say this correct in english) to make more room for the axle/shafts.
    i have seen people adjusting the frame/chassis so that the axle can go higher.

    hope this could help you. search google to get some ideas about notching if this could be a problem for you.
     
  7. Lucas Mess

    Lucas Mess
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    Joined:
    Feb 14, 2021
    Messages:
    41
    If you remove the rear coils completely does it go as low as you want it to? If no then you have other obstruction like @Glockachu suggested above. If it does go low enough with coils removed then it is doable. Will you post the name of the mod you started with so I can look it over and give you a solution? I would also like to use this mod for myself.
     
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