A device that inflate the outer tires during cornering?

[g-force_addict]

Suppose for a moment that such a device could be:
Reliable, Lightweight (for both sprung and unsprung weight), and had a fast enough response.

It would allow cars to get the most out of the tires.

Inflating tires would increase temp, while deflating them would cool them thus you also could control tire temp.
You can also heat tires (i.e. during yellow flags) by inflating them with air (or nitrogen/helium) heated by the engine. Thus avoiding having to zig-zag after the pace car to heat tires.

[Giblet]

Deflating tires means more contact with the asphalt, more rolling resistance, and more heat. The tires need to be at temperature, release the hot gas, then add new cold gas. Plus, the gas is not regular air, so the car would need to carry around a tank.

I don't think it would work

[Ciro Pabón]

Well, you might want to learn about peristaltic valves for tyres. They do inflate the car while in movement. Another very common system used in intercity buses inflates tyres using a regular air pump on board. The first google I get on peristaltic valves is this:

http://mechsters.blogspot.com/2011/03/p ... em_22.html

Most buses in my country use the air pump system. It works pretty quickly.

A truly bad picture of the system used in buses. You can barely see the tube going to the green thing in the middle of the rim


They are very reliable, lightweight and maybe fast enough. They are simple to control, I'd guess.

I guess the idea of heating the tyres with hot gas is not as useful as weaving behind the safety car (it's not that dangerous, I'd say and I find it kind of fun).

You might want to check the difference between temperature rising by friction vs by convection, conduction or radiation of heat through air.

Air is a very poor conductor of heat.

That's the reason why people heat wood by friction (as when you start a fire with a stick) while it is very hard to heat wood by blowing hot air over it.

Imagine me trying to start a fire on a piece on wood simply by hanging it over the hot air that raises from a fireplace (without contact with other pieces of wood). It would take an eternity.

That's also the reason why double window panes are so efficient at keeping your house warm.