AI cars are always tapping the brakes in corners

Discussion in 'Technical & Support' started by Mike Cantwell, Jul 6, 2018.

  1. Mike Cantwell

    Mike Cantwell Registered

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    Hi everyone,

    I thought it was just my track i am building in DEV mode, but i have noticed more and more that many AI cars on many tracks do the same.

    They brake normally into a corner then tap and accelerate quickly through the corner in a jerky motion.

    This seams to be after the last 2 or 3 updates. Has anyone else experienced this and is there a fix?
     
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  2. Lazza

    Lazza Registered

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    I think it's been like that for quite a long time. It's just how the AI here drive. Would guess there's something of a tradeoff between dynamic AI cars (that actually 'think' their way around) and easily making AI cars drive smoothly. Hopefully this behaviour will be improved at some point.

    I'd call it unrealistic, but then I've seen people driving on the motorway doing pretty much exactly the same thing. Lots of people seem unable to let a car roll for a bit...
     
  3. Nielsen

    Nielsen Registered

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    Just a comment on this behaviour from another sim.
    The Raceroom AI´s are behaving with some kind of the same unrealistic stopAndGo.
    Before a corner they abruptly brake harder than is possible with a human car.
    Exiting the corner they are able to accelerate ealier and faster than a human driven car.
    My own conclusion is that the abruptness is caused by a too simple AI algoritm and the unrealistic brake/accelerate rate is caused by the AI´s (simplified) tire model.
    Probably just like rF2:rolleyes:
     
  4. MarcG

    MarcG Member

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    In your player.JSON file search for AI Logic, change the 0 to a 1 and see if this improves their cornering behaviour. I've been testing it a bit lately and whilst this setting change has had some good effects it does "turn off" the BLOCK Path so I've found racing the AI to become a bit more Stale (I prefer to leave it at default 0). Hopefully we can find some middle ground so that in the future Studio397 may revisit and tweak this area of the AI.
     
  5. Lazza

    Lazza Registered

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    @Nielsen You're describing something else. This is about the throttle and brake 'tapping' through the corner, which you can hear if you ride onboard with AI. The fact that rF2 AI actually drives (instead of just following a line like robots) I think leads to this, and reduces the amount of silly performance you should see (this is partly dependent on how the AI tyres are done, something many third party mods (at least) aren't too careful with). The behaviour you describe should be rare in rF2.
     
  6. Nielsen

    Nielsen Registered

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    Yeah its so quite different - what did I think of?
     
  7. Lazza

    Lazza Registered

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    ...
     
  8. thoraxe

    thoraxe Registered

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    This brake tapping / strange cornering behavior happens all the time when I drive with AI cars. Perhaps it's an artifact of slower vehicles, but the Z06 Corvette and GT3 cars seem to do it.
     
  9. Mike Cantwell

    Mike Cantwell Registered

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    I just tried the new March 761 at the newly released Hockenheimring and it is quite bad there. So it seems to affect most cars and tracks.
     
  10. danove_b

    danove_b Registered

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    I fired up rfactor1 that I haven't used for over a year just to check this behavior. The AI in rfactor1 doesn't do this!
     
  11. whitmore

    whitmore Registered

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    Aeyrton Senna driving style on steroids.
     

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