CVT transmission

Discussion in 'Ideas and Suggestions' started by mrkelkel, Oct 12, 2013.

  1. mrkelkel

    mrkelkel
    Expand Collapse

    Joined:
    Aug 18, 2013
    Messages:
    48
    Adding a CVT system to BeamNG would be quite good, as it would bring more realism. Is it possible?
     
  2. Erik.s

    Erik.s
    Expand Collapse

    Joined:
    Sep 19, 2013
    Messages:
    130
    "gears":[-2.5, -3, -3.8, 0, 3.8, 3.75, 3.7, 3.65, 3.6, 3.55, 3.5, 3.45, 3.4, 3.35, 3.3, 3.25, 3.2, 3.15, 3.1, 3.05, 3, 2.95, 2.9, 2.85, 2.8 2.75, 2.7, 2.65, 2.6, 2.55, 2.5, 2.45, 2.4, 2.35, 2.3, 2.25, 2.2, 2.15, 2.1, 2.05, 2, 1.95, 1.9, 1.85 1.8, 1.75, 1.7, 1.65, 1.6, 1.55, 1.5, 1.45, 1.4, 1.35, 1.3, 1.25, 1.2, 1.15, 1.1, 1.05, 1, 0.95, 0.9, 0.85, 0.8, 0.75, 0.7]
    "clutchDuration":0.0000000000001

    Paste that into the engine file where the transmission is, its not really cvt but with 63 forward gears its pretty close :D
     
  3. JDMClark

    JDMClark
    Expand Collapse

    Joined:
    Aug 10, 2013
    Messages:
    1,347
    Would be an awesome addition. I was thinking about this the other day but I don't think the game engine would support a simulated CVT transmission.
     
  4. gabester

    gabester
    Expand Collapse
    Vehicle Director
    BeamNG Team

    Joined:
    Jun 6, 2012
    Messages:
    2,653
    CVT should be possible quite easily. All you need to do is code some logic to change the gear ratio on the fly based on the various parameters (speed, throttle, rpm, etc)
     
  5. JDMClark

    JDMClark
    Expand Collapse

    Joined:
    Aug 10, 2013
    Messages:
    1,347
    I've been trying to learn about cvts and they are interesting if done right. Girlfriend has a Nissan versa an its CVT is junk. Drove a new accord and its CVT was better than any automatic I've ever driven. Would be cool if we had cvts in offroad vehicles.
     
  6. gabester

    gabester
    Expand Collapse
    Vehicle Director
    BeamNG Team

    Joined:
    Jun 6, 2012
    Messages:
    2,653
    My Nissan Maxima's CVT is fantastic; it shaves 0.4 seconds off the 0-60 compared to the previous 6 speed manual or auto it was offered with, and also improved mileage. It even has a fake 6 speed manual mode. Also far smoother than any automatic and there's no kickdown, just instant power.
     
  7. SixSixSevenSeven

    SixSixSevenSeven
    Expand Collapse

    Joined:
    Sep 13, 2013
    Messages:
    6,960
    Only CVT I have handled was in my old Piaggio Zip 50t.

    Would be a nice option for BeamNG though.

    My understanding for the rarity of CVT's in cars was to do with them being incapable of dealing with torque easily so are harder to build for the larger engines and weight in a car than for a small 50cc engine.
     
  8. gabester

    gabester
    Expand Collapse
    Vehicle Director
    BeamNG Team

    Joined:
    Jun 6, 2012
    Messages:
    2,653
    My car's 3.5L V6 with 245 lb-ft of torque would disagree ;)
     
  9. JDMClark

    JDMClark
    Expand Collapse

    Joined:
    Aug 10, 2013
    Messages:
    1,347
    I always thought diesel trucks would benefit a lot from a CVT.
     
  10. moosedks

    moosedks
    Expand Collapse

    Joined:
    Nov 4, 2012
    Messages:
    1,112
    i think some form of a subaru impreza also has a cvt, along with like every snowmobile ever (40hp? more than 50cc for sure)
     
  11. Christer

    Christer
    Expand Collapse

    Joined:
    Aug 6, 2013
    Messages:
    2
    Rubber-belt cvts can handle alot if you want to, and most modern day snowmobiles put out alot more than 40 hp ;)
     
    #11 Christer, Oct 22, 2013
    Last edited by a moderator: Oct 21, 2015
  12. gabester

    gabester
    Expand Collapse
    Vehicle Director
    BeamNG Team

    Joined:
    Jun 6, 2012
    Messages:
    2,653
    Yeah, it always seemed odd to have to manually shift through 12+ gears and stay in a 500 RPM range of peak torque. A sufficiently strong CVT could do the job much more efficiently and hold the RPM exactly where it needs to be.
     
  13. SixSixSevenSeven

    SixSixSevenSeven
    Expand Collapse

    Joined:
    Sep 13, 2013
    Messages:
    6,960
    Apparently the audi multitronic transmission is a CVT.

    I originally thought that there were issues with torque, apparently that only applies to certain types. The japanese army's current main battle tank apparently has a CVT.
     
  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