Does AC calculate the downforce F1 cars produce?

I was driving the f1 car on nurburgring and at about 200kmh I went over a bump and rear just entered into a no grip zone (probably elevated) and it threw the whole car. it happened in an instant.

at 200kmh an f1 car produces more downforce than its own weight. basically it should not jump at all at high speeds. neither have we ever seen that in f1. the only time f1 cars jump is when they brake into big kerbs at very low speeds.

so does ac calculate the huge downforce f1 car produces at high speeds? I am guessing not, because even with the lotus f1 when riding over small bumps, I hear the rev's jumping, indicating the tyres are losing contact for fractions of a second.

thoughts?

 

It does, open the Wings App and be amazed.

 

As said above enable dev apps & check out the wings app. See if your diffuser is stalling

 

Actually sometimes even before it happens.

 

I'm in love with you Aristotelis ! (Even if I'm not fully passionate for those F1 cars or similars by the way...)

 

Someone should do a compendium on how AC works and what it simulates.
Basically just find all Aris's posts and put them together :-D

 

That was too easy:
https://www.assettocorsa.net/forum/index.php?search/7358366/

 

It gives error, @Berniyh. But I think it is quite obvious what you have done there

 

Yeah, searches have a short life.

 

Damn,
I wish Aristoteles would have been my physics teacher in high school. I actually would have paid attention to him.
And I have ADD...

 

Can you explain in a little more detail? Your one word answer is too easy to understand

 

Just curious, the AC physic engine can simulate the ground effect produced with miniskirts despite the most modern generated by diffusers (like in F1s from 1979 to 1982 before the ban)?

http://soundcloud.com/carlogosamo

 

AC does simulate small flaps (even moving ones in case of the Porsche 908), fins and other extra elements. If necessary the code was adjusted to take that into account.
So even if the engine cannot do it currently (which I doubt), I'm pretty sure they would get it working.

There is actually at least one car in AC that is said to make use of "ground effect", at least according to Wikipedia:

Now the article obviously is about the 956 and not the 962 that is in the game, but the cars were quite similar, so surely that phrase would be the same for the 962.
But I don't know if the effect is comparable to that of the F1 cars (e.g. Lotus 78) at the time.

 

But if I remember right, 952/962 got no miniskirts, I suppose an emulation of how miniskirts interacts with ground and bumps (with conseguent variation of downforce produced, a very well know problem of the F1 wing cars) needs specific (and complex) physic calculations, I don't think AC engine can do that, actually.

http://soundcloud.com/carlogosamo

 

Can't comment on AC's physics but I can comment on real-life physics. The vertical component of the reactive force of a tyre against a bump is proportional to speed. At high speed a little bump with the right angle can create huge vertical forces. In fact a large enough bump can create such severe forces that it can break the car' suspension before there is even time to push it airborne (car is sandwiched between downforce and bump force). To unsettle the car you don't need to go airborne. If you do a free body diagram of the tyre when hitting the bump, you will see that any vertical reactive force of tyre-against-bump will subtract from your available grip.

Again can't comment on AC's physics but here go some thoughts on the real phenomena. Following from the above, any change in grip translates into a change in contact torque at the wheel's axle, which makes its way all the way to the engine. A change of engine torque has to affect the engine rpm's in some way. If you could measure real wheel speed at the wheel, I anticipate you would see tiny changes in wheel speed as you pass over transients (if you sample quick enough). I assume the car's drive train does have a bit of slack (summation of little play in gear engagement, universal joints, compliance in tyre's rubber, etc) which adds some more to the rpm jumping when going through those transients. A good way to prove any of this could be finding a Youtube video of a F1 car passing through bumps at high speed and checking whether the engine rpm's change or not. I'm too lazy to look for a video right now.

 

Thank you @Aristotelis , I know what a miniskirts does (thanx for the refresh anyway) it's just for that reason I've supposed that was a lot of calculation and not achievable for that simracing generation.Many thanx for your reply and your hard work!

http://soundcloud.com/carlogosamo

 

Cars have miniskirts?!!! So they must be female.

I knew it!