Re: [Torcs-devel] Torque curves of car2 and car3-trb1

[Christos D. <ole...@fa...>]

Miguel Martinez wrote:

> My question is: is this an intended behaviour for punishing lazy human 
> drivers and lousy robots? If not, would new torque curves, keeping the 
> general aspects of the originals, be welcome?
> 

We do not play much with torque curves.  From most of the real car data
sheets that I have seen, however, the torque tends to be more or less
flat after a threshold rpm and then drops off relatively fast after the
maximum hp rpm.  In general the curves are not very carefully designed.
Most of the time we tried to match the curves' maximum hp and sometimes
torque values to those of the corresponding real vehicles, but the
overall _shape_ of the curve is probably not very realistic.

As for the placement of the redline, that has much to do with cooling -
I'd expect the torque to drop much faster after the redline though, than
it does in these two examples.

> Finally, an off topic question, if you don't mind. Is there a reason why 
> most cars have turbos assigned in their xml files?

I am not sure that 'most' have turbos assigned.  Certainly some.  I
don't really know which cars have a turbo in reality.  In any case,
currently turbo is just a sound effect.
> 
> Regards to everybody and sorry for a lengthy first post,
> 
> Miguel