How is the optimal braking speed for a car determined?

Normally, the car must be kept within theoretical speed before entering the corner, otherwise an uncontrollable oversteer will occur, and the result will be a struggle to get out of the car line to the side full of tire rubber, and then lose a lot of time. Of course, this requires the driver to be able to keep the car on the line at the sign of losing control, and to regain four-wheel grip before the crucial moment of timing, the point of acceleration out of the corner. In many corners that aren't stop and go, it's not that you have to oversteer the whole time, but that it's easier to adjust the angle of entry when braking.

After all, relying too much on oversteer can cost you speed in the corner and delay acceleration out of the corner, but if used correctly you can brake later than other drivers, enter corners faster and exit corners with the same point, while not losing as much time as your tyre grip slips, and you can be more comfortable with late braking to overtake or defend. <>

Determining the braking speed is essentially a matter of finding the right braking point. There are only two opportunities to survey the road and pass through each stage of the rally, even if it is repeated use, it is only two or three more, and it is impossible to repeatedly practice to find the brake point, and can only judge the braking timing by the driver's technical experience and feeling, so it is not too much, let's talk about the track race. The first is track walking, that is, stepping on the track.

The track is open to the riders before the race, and at this time the riders walk and of course there are also bicycles and motorcycles to walk around the track in order to get a complete view of the track. Although the racers have already done countless test runs on the simulator, after all, it is only a simulation, and it is up to you to see for yourself how the track will be. The reason why it is called "full view" is because the field of vision is limited when you are in the car, and you cannot accurately observe the curve.

After this process, the driver has a certain understanding of the corners of the entire track, including the degree of urgency, the approximate braking point, etc. The next step is to keep trying. Let's start by assuming that external variables – fuel load, tire wear, etc. – remain constant.

Racers first rely on their own experience to find a braking point, you can use the billboards on the side of the track, distance signs, etc. as a reference, a corner, whether the braking point is early or late or just right is basically understood. If this lap is early, the next lap will be late, and if it is still early, it will be later; If the first lap is earlier and the second lap is late, then the third lap is earlier than the second lap and later than the first lap, much like the idea of dichotomy in mathematics. Then there are the external variables.

The less oil is used, the later it can be, and the worse the tires are, the sooner it gets. The reason why there are practice sessions in races like F1 is not to familiarize the drivers with the track, but to test the impact of tires and fuel on the performance of the vehicle as much as possible. The oil carrier is okay, but tire wear is simply impossible to simulate.

With a large amount of data, the driver can decide the location of the brake point according to the actual situation. <>