Tyre management in a formula car: recognise wear, drive more smoothly, plan the stint, and what rules and research support on tyres, temperature and strategy.
The honest answer: Tyre management means driving so that your grip lasts the whole stint instead of using it up in the first laps. A tyre wears from lap to lap, that is physics. You only decide how fast.
Research supports this: the grip of a tyre drops from lap to lap, and because it keeps changing, drivers have to keep updating their feel for the grip. With new tyres you can carry more speed into a corner than with worn ones [3]. Locking the wheels speeds up the wear [3].
The regulations set the frame for Formula 1: tyres must be used as supplied, cutting, grooving or solvents are forbidden [2]. They may be heated only with approved tyre blankets, every other heating method is forbidden, except driving [2]. Every car carries tyre pressure and temperature sensors [2]. And in the race you must use at least two different dry-weather compounds, unless you run wet or intermediate tyres [1]. So the tyre is not just material, it is part of your strategy.
Scientifically, there is no study showing how much lap time which amount of tyre saving costs. How you drive to save tyres is coaching practice and carries no source number.
Drive a stint with a constant line and note the lap times. If they rise over several laps without you driving slower, the tyre is wearing. Watch for understeer, oversteer and vibrations at the steering wheel [4].
Milestone: You recognise wear before the lap time tips.
You gain lap time through gentle, even inputs, not through force. The textbooks advise not to pounce on the throttle and not to slam on the brakes [4]. This applies even more when the tyre gets tired.
Milestone: Your steering and pedal traces in the data are smooth, without spikes.
A locking wheel grinds a spot flat and makes the tyre wear faster [3]. Brake with reserve, especially late in the stint.
Milestone: A whole stint without a locking wheel.
Apply the throttle in a measured way as soon as the car straightens. Spinning wheels heat the tyre unnecessarily. That is practice.
Milestone: You accelerate without wheelspin that you feel in the rear.
Agree with your engineer how long you run a compound and when you change. In Formula 1 three dry compounds are available per competition, and in the dry you must use at least two different ones [1].
Milestone: You know the target lap and the fallback plan for your stint.
Plan a buffer in. Whoever pushes the compound to the last lap has no reserve left in a yellow-flag phase, a Safety Car phase or after an own mistake. That is coaching practice.
Say aloud during the stint how much grip you feel right now, for example on a scale of one to ten. Racing driver textbooks describe exactly this exercise to sharpen the feel for grip [4]. After a few stints you see how your feel matches the data.
You drive so that the tyres keep enough grip over the whole stint. Grip drops from lap to lap, which is normal [3]. You only control how fast that happens.
Grip falls from lap to lap as the tyres wear [3]. Locking wheels speed up the wear [3]. How fast it happens depends on tyre, track and driving style.
In the dry at least two different compounds, unless wet or intermediate tyres are used [1]. Whoever fails to do so is disqualified [1].
No. Only tyre blankets are permitted, every other heating method is forbidden, except driving the car [2]. A tyre may not be treated either [2].
That depends on track and car. We found no study on it and name no number. Measure it in the stint: compare a reference lap with a saving lap.
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