Tire Wear in car physics

[DaveO]

I'm exploring the possibilities of tire wear in the car physics. Now I do know you can control tire wear in track physics for each track.

But now for a car model, I'm not certain exactly which line in physics controls increasing or decreasing tire wear. I'm focusing digging into the friction, and also longitudinal and latitude but I'm not seeing anything real worthy in these sections. Does anyone know the correct area for tire wear?

[DaveO]

Now I do know that by increasing or decreasing tire pressure you can change how your tire wear is effects in the garage area. But wouldn't grip in the above post that I mention also show this type of effect? My problem is I'm not seeing that in testing.

So if someone could point me in the right direction to the parameters, would be very helpful..

[Blaxman]

I think these values you mentioned are for grip. For tire wear... the only way I know is on track physics. Not sure what might happen if you paste the track.val lines into the car physics though. Maybe it works for the purpose you want.....

[Blaxman]

Also on track... you can set the tire compounds (that would take a role on the wear too). It's all kinda tied together.

[DaveO]

Jun 14, 2011 16:08:05 GMT 2 Blaxman said:

I think these values you mentioned are for grip. For tire wear... the only way I know is on track physics. Not sure what might happen if you paste the track.val lines into the car physics though. Maybe it works for the purpose you want.....

Yea you are correct you can change tire wear in track physics. But for each car model there should be a way to change each type of cars tire wear, by increasing it or decreasing it. In my first post, yes those parameters do cover grip. But from what I can figure out it has something to do with grip and also rolling resistance, friction and maybe force distribution?

[Cholerix]

Tire wear in Heat is related only to tire temperatures. The higher temps go, the faster the tire wears out. So the question basically is how to affect the heating. There's a lot of things affecting the heating, tire pressure is one of these. Most of these things are rather a matter of how to setup the car in garage.

But from mod testing I found that the most effective way to control heat and thus tire wear was via the attribute "friction". Since grip is controlled already by several other functions, I had always wondered what that "friction" value really was about. Especially since I couldn't feel much effect from playing around with even extreme settings. My guess is that "friction" simply controls the speed-related heating of the tires

From tutorial:
The parameter friction doesn't affect grip, but how fast the tires will heat up.
resistance affects how much longitudinal friction will affect the car's acceleration and speed

[DaveO]

Jun 14, 2011 17:22:31 GMT 2 Cholerix said:

Tire wear in Heat is related only to tire temperatures. The higher temps go, the faster the tire wears out. So the question basically is how to affect the heating. There's a lot of things affecting the heating, tire pressure is one of these. Most of these things are rather a matter of how to setup the car in garage.

But from mod testing I found that the most effective way to control heat and thus tire wear was via the attribute "friction". Since grip is controlled already by several other functions, I had always wondered what that "friction" value really was about. Especially since I couldn't feel much effect from playing around with even extreme settings. My guess is that "friction" simply controls the speed-related heating of the tires

From tutorial:
The parameter friction doesn't affect grip, but how fast the tires will heat up.
resistance affects how much longitudinal friction will affect the car's acceleration and speed

Right, tire wear is controlled in heat by tire temps, and you can control that in the garage area by fine tuning your car for example by your tires PSI values, then by watching the tire temps, of the inner and outer core.

I understand about the speed coming into play for tire wear. So basically it's focusing on the friction settings.. Now to test it out at different speeds.. Now this is the fun part..

Now one final question: Now everything is related to a circular path, now wouldn't torque or braking or lets say big braking forces also come into play? Or am I digging to much, and should just focus on friction?

[Blaxman]

The usual is more heating, more wearing. Spinning the tires (or car) or locking them up while braking is tire consuming for sure.

But, depending on track physics, you can get your tires worn even if they are not overheated yet. I worked a lot on this for some oval tracks.

[DaveO]

Thanks everyone for there ideas and support in this thread. After a lot of trial and error the last two nights starting to see some good results with tires tonight.

Thanks again!