rec.autos.simulators

Ok smart guys...rF AI spining

Dave Henri

Ok smart guys...rF AI spining

by Dave Henri » Wed, 17 May 2006 14:01:12

  I have a problem with a modded car I'm messing around with.  The car
behaves fairly predictably and within the performance envelope I wanted it
to achieve.  But I have found it has a fatal AI flaw.  The car can't make
high speed weight transistions.  When driving it myself,  I may find that
to complete a quick left/right combo, (like the middle chicane at
Birmingham/Barber) I'll have to lift slightly off the throttle.  Not always
tho..usually when I get the corners driven correctly,  the car CAN make the
turns.  But the AI never feels this problem and will often loose the back
end upon exiting the corner.  
  I've tried increasing rear downforce,  moving the front/rear weight
ratio,   messing with setups...nothing seems to completely cure the
problem.  I have thought, at times,  my changes have corrected the problem.  
But if I leave the AI alone...sooner or later the spin will re-occur and
once it starts,  the AI seems more prone to repeat it.  

   So what causes a loose condition upon corner exit?  I feel it's the
weight transition itself,  but I 'should' have been able to dial that out.

  I have even had the downforce configured so that the front feels light
almost bouncy with a rear wing providing most of the traction.  But it
can't seem to keep the back end planted when there is this sudden double
direction change.  There is even one track  with a long downhill corner
(VIR's last turn) that causes the same spin.  The car is weighted to the
inside of the track but as the ai change direction for the last corner back
onto the main straight, the weight of the car rolls to the outside and the
back end falls away to the outside.  These spins are not sudden snap spins
but slow PAINFULL affairs.  

   If you were working on setting up a car,  what areas would you look at
to FIX this condition?

dizzy dave

Cris Eichle

Ok smart guys...rF AI spining

by Cris Eichle » Wed, 17 May 2006 16:07:21



Hi Dave,

even though i don't consider myself smart, or being an awfully fast
sim-driver for that matter, setting up cars is kind of a hobby. First thing
to figure out tho is if it actually is just a setup Problem or a general rF
AI issue. But let's assume it's the setup. Try to heaviuly reduce rear-end
roll by stiffening the bar and/or the springs. Also, stiffen the outside
rear damper in the bump direction and the inside rear one in the rebound
direction. shifting some downforce from front to rear may also help, but i
think you tried that already. Anyway, that's my take on it. If everything
fails, just steal the AI massive amounts of front end grip and see what
happens...

Cheers!

Cris


rec.autos.simulators is a usenet newsgroup formed in December, 1993. As this group was always unmoderated there may be some spam or off topic articles included. Some links do point back to racesimcentral.net as we could not validate the original address. Please report any pages that you believe warrant deletion from this archive (include the link in your email). RaceSimCentral.net is in no way responsible and does not endorse any of the content herein.