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DD2 beta 2

Started by jamiecraig20, June 28, 2013, 03:07:25 AM

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jamiecraig20

Also make sure you change the max torque of the clutch to in between 500 and 700, otherwise it slips.

oppolo

July 14, 2013, 11:20:24 AM #31 Last Edit: July 14, 2013, 04:13:02 PM by oppolo
Quote from: jamiecraig20 on July 14, 2013, 02:32:36 AM
If you set the gear ratios like that, the top speed is 32km/h

because you forgot DD2 engine internal ratio is 1.
try this, i changed also engine weigth, rpm limiter, breake engine rpm, rpm engage clutch, opt engine temp, low and higt engine temp (change these values also in others files otherwise alert lights will not work properly)
specs from here http://www.rotax-kart.com/upload/files/88.pdf




engine
{
   mass = 29.2

   inertia = 0.0035
   id = DD2
   curves = DD2.engn

   stall
   {
      RPM = 1600
      torque = 0.035
   }

   IdleRange = 0, 0.01, 0.25
   IdleSetting = 0

   IdleRPM = 2200
   
   NumLimiter = 1
   Limiter0 = 13800

   BreakingRPM = 17000
   brokenTorque = 0.7

   FuelRatio = 0.0006

   ratio = 1         

   IntakeScale = 0.125

   CarburetorRange = 0.047, 0.003, 0.062
   CarburetorSetting = 4

   RefCarburation = 0.0555      ; 18:1

   clutch
   {
      maxTorque = 103      ; ~ 20 Nm * 3.9474 * 1.3
      centrifugal = 1
      minrpm = 3900
      maxrpm = 4100
   }

   OptTemperature = 65
   CoolingFactor = 0
   HeatingFriction = 0
   HeatingFactor = 0.09
   WaterCoolingFactor = 0.0018

   HeatTransferFactor = 0.5

   RadiatorRange = 0, 0.05, 0.6
   RadiatorSetting = 6

   starter
   {
      torque = 2.5
      maxRPM = 2100
   }

   shiftRPM = 12500
   MaxRPM = 13800
   TemperatureAlarm
   {
      min = 45
      max = 85
   }
}

driveline
{
   FirstAxisInertia = 0.0007
   FirstAxisFriction = 0.005
   
   SecondAxisInertia =  0.0005
   SecondAxisFriction =  0.01
   
   efficiency = 0.92
   
   FSprocket
   {
      gear0 = 32
      gear1 = 33
      gear2 = 34
      gear3 = 35
      gear4 = 36
      gear5 = 37
      gear6 = 38
   }
   FSprocketSetting = 3

   RSprocket
   {
      gear0 = 59
      gear1 = 60
      gear2 = 61
      gear3 = 62
      gear4 = 63
      gear5 = 64
                gear6 = 65
   }
   RSprocketSetting = 3   
}

gearbox
{
   NumGears = 2

   ratio0 = 15, 64
   ratio1 = 14, 45
           
         
   Gear0 = 0
   Gear1 = 1
   
   
   UpshiftTime = 0.04
   DownshiftTime = 0.04
   
   DisengageTime = 0.02
   DisengageMaxTorque = 7
   
   EngageTime = 0.02
   EngageMaxSpeedDiff = 175
      
   autoshift
   {
      gear0
      {
         down = 0
         up = 3500
      }
      gear1
      {
         down = 7000
         up = 12200
      }
      gear2
      {
         down = 7000
         up = 12200
      }
      
   }
}



jamiecraig20

ah yes, now i see where  i went wrong

Capeta

Quote from: jamiecraig20 on July 14, 2013, 03:18:33 AM
If it is nervous, add more ballast weight, also to make it faster try changing the first and second axis' inertia and friction. Also change the efficiency. Add more torque in the .engn file.
Thx Jamie 'll try that :)

Jakob98

Its really fun to drive but it isent like DD2 in real life

oppolo

Quote from: Jakob98 on July 20, 2013, 12:13:15 PM
Its really fun to drive but it isent like DD2 in real life

do you mean the behaviour on track? at the moment it is impossible to change default chassis and tyres because files are encrypted. it is also impossible add an automatic cutoff

Andreas.L

I think the acceleration is to bad. (how fast it is speeding up)
I am not designed to come second or third. I am designed to win.

-Ayrton Senna ♥

oppolo

July 20, 2013, 03:16:39 PM #37 Last Edit: July 20, 2013, 03:46:33 PM by oppolo
Quote from: Andreas.L on July 20, 2013, 03:01:12 PM
I think the acceleration is to bad. (how fast it is speeding up)

this should be no problem to adjust, when it is assumed engine torque curve is correct, try to add ballast on the chassis

jamiecraig20

i'm pretty sure torque at low revs is too low

oppolo

sometimes in these games, even if you have real datas, we have slight to change them for obtain real behaviours. when carb is ok, acceleration strictly depends on gear ratio, so if Andreas has a real DD2, should compare the acceleration with the same gear ratio, and then change the torque curve or ballast until the result is satisfactory

chris tkr

Quote from: oppolo on July 14, 2013, 11:20:24 AM
Quote from: jamiecraig20 on July 14, 2013, 02:32:36 AM
If you set the gear ratios like that, the top speed is 32km/h

because you forgot DD2 engine internal ratio is 1.
try this, i changed also engine weigth, rpm limiter, breake engine rpm, rpm engage clutch, opt engine temp, low and higt engine temp (change these values also in others files otherwise alert lights will not work properly)
specs from here http://www.rotax-kart.com/upload/files/88.pdf




engine
{
   mass = 29.2

   inertia = 0.0035
   id = DD2
   curves = DD2.engn

   stall
   {
      RPM = 1600
      torque = 0.035
   }

   IdleRange = 0, 0.01, 0.25
   IdleSetting = 0

   IdleRPM = 2200
   
   NumLimiter = 1
   Limiter0 = 13800

   BreakingRPM = 17000
   brokenTorque = 0.7

   FuelRatio = 0.0006

   ratio = 1         

   IntakeScale = 0.125

   CarburetorRange = 0.047, 0.003, 0.062
   CarburetorSetting = 4

   RefCarburation = 0.0555      ; 18:1

   clutch
   {
      maxTorque = 103      ; ~ 20 Nm * 3.9474 * 1.3
      centrifugal = 1
      minrpm = 3900
      maxrpm = 4100
   }

   OptTemperature = 65
   CoolingFactor = 0
   HeatingFriction = 0
   HeatingFactor = 0.09
   WaterCoolingFactor = 0.0018

   HeatTransferFactor = 0.5

   RadiatorRange = 0, 0.05, 0.6
   RadiatorSetting = 6

   starter
   {
      torque = 2.5
      maxRPM = 2100
   }

   shiftRPM = 12500
   MaxRPM = 13800
   TemperatureAlarm
   {
      min = 45
      max = 85
   }
}

driveline
{
   FirstAxisInertia = 0.0007
   FirstAxisFriction = 0.005
   
   SecondAxisInertia =  0.0005
   SecondAxisFriction =  0.01
   
   efficiency = 0.92
   
   FSprocket
   {
      gear0 = 32
      gear1 = 33
      gear2 = 34
      gear3 = 35
      gear4 = 36
      gear5 = 37
      gear6 = 38
   }
   FSprocketSetting = 3

   RSprocket
   {
      gear0 = 59
      gear1 = 60
      gear2 = 61
      gear3 = 62
      gear4 = 63
      gear5 = 64
                gear6 = 65
   }
   RSprocketSetting = 3   
}

gearbox
{
   NumGears = 2

   ratio0 = 15, 64
   ratio1 = 14, 45
           
         
   Gear0 = 0
   Gear1 = 1
   
   
   UpshiftTime = 0.04
   DownshiftTime = 0.04
   
   DisengageTime = 0.02
   DisengageMaxTorque = 7
   
   EngageTime = 0.02
   EngageMaxSpeedDiff = 175
      
   autoshift
   {
      gear0
      {
         down = 0
         up = 3500
      }
      gear1
      {
         down = 7000
         up = 12200
      }
      gear2
      {
         down = 7000
         up = 12200
      }
      
   }
}

how do i make the necessary adjustments to make this work ?
4-stroke master :)

oppolo

Quote from: chris tkr on August 09, 2013, 08:49:20 PM
how do i make the necessary adjustments to make this work ?
the ac adapter of my laptop is broken and i'm waiting for a new one so I can't be exact, if i remember well this is the dd2.cfg file in the engine folder, then you have to match the min and max temperature in the gfx.cfg file in the kart folder

chris tkr

i think i have done it right   :D

but still the gear ratios are all wrong first gear should only do about 45mph and it should accelerate hard all the way through but it seems to bog down as you change gear
4-stroke master :)

oppolo

Quote from: chris tkr on August 10, 2013, 09:14:01 AM
i think i have done it right   :D

but still the gear ratios are all wrong first gear should only do about 45mph and it should accelerate hard all the way through but it seems to bog down as you change gear

as I said before, now I can't try it, anyway I checked gear ratios, front and rear sprockets and they are correct, the instruction manual says 47 miles in first gear with 32/65, have you tried in this condition?
the instruction manual also says the better way to use the engine, is in the range 9200/12200 RPM, with possibility of to push the engine at 13600 if the track requires so

jamiecraig20

I will upload an updated version this afternoon. i have found an accurate torque curve and have updated that. I have also managed to make the engine flat-shift like a DD2(no lifting when shift gears). I am now trying to find a way to disable the hand clutch.