Jbeam transmission help

Discussion in 'Content Creation' started by BlueScreen, May 6, 2014.

  1. BlueScreen

    BlueScreen
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    Joined:
    Apr 5, 2014
    Messages:
    624
    I've already seen tutorials, so don't link me to one.

    So, to learn some Jbeam I've read a bunch of tutorials and started messing around with the Covet, trying to make a 300 bhp, AWD version. I'm editing the hatch_engine file only.
    When I started editing the transmission (for higher revs) I had some trouble. The redline's set to 8000 RPM.

    I started editing the 4-speed auto. I added 2 extra gears and changed the ratios to something similar to those of a Peugeot 205 T16, then changed the shift up/down numbers to 7200/4200 (low) and 7600/4600 (high). When I tested it in-game it's rather strange...

    First, it takes second or so to react, it gets stuck at ~700 RPM (Auto gearbox).
    Then, it revs pretty fast (I want that to happen) but skips directly to 3rd, 2nd gear is so quick it's impossible to see.
    Then 4th gear is ridiculously long and when it gets to 5th, it starts switching up and down, stuck between 4th and 5th.

    Here's my transmission code:
    Code:
    "hatch_transmission_A": {    "information":{
            "authors":"gabester",
            "name":"Covet 6-Speed",
        }
        "engine":{
            "transmissionType":"automatic",
            "lowShiftDownRPM":4200,
            "lowShiftUpRPM":7200,
            "highShiftDownRPM":4600,
            "highShiftUpRPM":7600,
            // -1, 0 (neutral), 1, etc
            "gears":[-3.15, 0, 3.15, 2.12, 1.43, 1.04, 0.81, 0.74]
            "clutchDuration":0.08
            "viscousCoupling":3.7
            "lockingTorqueLimit":420
            "enableLocking":true
            },
        "slotType" : "hatch_transmission",
        "slots": [
            ["type", "default", "description"]
            ["hatch_differential_F","hatch_differential_F", "Ibishu Covet Front Differential"],
        ],
        "scalenodeWeight":0.62,
        "scalebeamSpring":0.46,
        "scalebeamDamp":0.58,
        "scalebeamDeform":0.39,
        "scalebeamStrength":0.51,
        "flexbodies": [
             ["mesh", "[group]:", "nonFlexMaterials"],
             ["hatch_transmission", ["hatch_engine","hatch_transmission"]],
             ["hatch_shifterbase_A", ["hatch_body"]],
             
        ],    
        "props": [
            ["func"      , "mesh"              , "idRef:", "idX:", "idY:"            , "baseRotation"        , "rotation"                 , "translation"        , "min", "max", "offset", "multiplier"]    
            //automatic transmission
            ["gear_A"   ,"hatch_shifter_A", "f7r","f7l","f8r", {"x":85, "y":0, "z":0}, {"x":0, "y":0, "z":0}     , {"x":0, "y":0.2, "z":0.01}, 0, 1, 0, 1],
            ["parkingbrake"     ,"hatch_parkingbrake", "f7r","f7l","f8r",  {"x":90, "y":0, "z":0} , {"x":-35, "y":0, "z":0}    , {"x":0.0, "y":0, "z":0}, 0, 1, 0, 1],
         ],
         
        "nodes": [
             ["id", "posX", "posY", "posZ"],
             //--4 Speed Auto--
             {"selfCollision":false},
             {"collision":true}
             {"nodeMaterial":"|NM_METAL"},
             {"frictionCoef":0.7},
             {"group":"hatch_transmission"},
             {"nodeWeight":31},
             ["tra1", -0.37, -1.43, 0.39],
             {"group":""},
        ],
        
        "beams": [
              ["id1:", "id2:"],
              //--TRANSMISSION CONE--
              {"beamType":"|NORMAL", "beamLongBound":1.0, "beamShortBound":1.0},
              {"beamSpring":14001000,"beamDamp":250},
              {"beamDeform":2000000,"beamStrength":"FLT_MAX"},
              ["tra1","e1r"],
              ["tra1","e3r"],
              ["tra1","e1l"],
              ["tra1","e3l"],
              {"beamPrecompression":1, "beamType":"|NORMAL", "beamLongBound":1.0, "beamShortBound":1.0},
        ],
        "hubWheels": [
                ["name","group","node1:","node2:","nodeS","nodeArm:","wheelDir"],
                {"propulsed":1},
        ],
    }
    I'll just attach the whole JBeam file.

    I guess it's got something to do with the gear ratios, but I've set them to pretty much everything and it's still the same.
     

    Attached Files:

  2. Leet34

    Leet34
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    Joined:
    Aug 8, 2013
    Messages:
    225
    How about you switch "automatic" to "manual" :). I didnt try to edit automatic transmission, because i had similiar problems with it. So you should probably stick to manual transmission.
    (It isnt so usual for such a hatchback to have an automatic transmission, especially with high power engine LOL)
     
  3. BlueScreen

    BlueScreen
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    Joined:
    Apr 5, 2014
    Messages:
    624
    I'll try that. I didn't use a manual because they react strangely in auto mode, and I can't do proper gear shifting without a hud and these terrible sounds.
     
  4. Leet34

    Leet34
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    Joined:
    Aug 8, 2013
    Messages:
    225
    Yea manual with auto shift tends to weirdly shift for example from gear 2 to 5 if you use a little shorter gear ratios and drive on a wavy/bumpy road. IDK about automatic, but it happens to manual. Would be good if it gets fixed in race update.
     
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