Traction Circle

Traction Circle


Hey everybody Matt Covert here from howtobecomearacecardriver.com.
I’m going to start this video a little differently. I’m going to go ahead and put the subscriber
link right up here and I’m going to leave up here through the whole video. Because I
think this one video is the most valuable one that I’ve made yet. And I just want to
give you a link to subscribe and never miss another video like this ever again. Super
valuable content. So let’s get right on into it. We’re going
to talk about traction circle. Alright? And this is one of my favorite concepts cause
it’s totally going to blow your mind wide open. If you haven’t seen the traction ratios
video that’s kind of a precursor to this one. So go back and watch that one before you get
into this. Understanding traction circle is going to
make you faster. It’s going to give you a really cool mind blow, that really cool ah
ha moment. It totally did for me when I learned this a while ago. And you’re going to be able
– let me make sure I say this right, because this is really cool, OK? You’re going to see
why tires can produce more tires more grip under combination forces than they can in
any one direction. And I’m really excited to share this with you so let me show you
a really neat visual. This is a traction circle. This represent
all the different forces – potential forces in any direction. So this is a theoretical
car. Let’s say it can brake at one G. And it can turn in either direction at one G.
And it can accelerate at one G. And it can do any of these things at any time by themselves.
Alright? The old school theory of driver, which I talked about in the traction ratios
video, is that when you approach the corner you would brake at a hundred percent. And
then you would corner at a hundred percent. And then throttle at a hundred percent. You
didn’t mix these together. So what that would look like if you plotted
it you would start on the brake and then you would come all the way over here. And then
you would come off and then back on the throttle. And it would look kind of like that. The actual
faster way is to mix these forces together. So you’re braking into the corner and then
you’re trading off forces as you’re cornering and then you’re trading off forces again as
you’re under acceleration. I want to show you why that’s faster. Let’s
make a plot here. So let’s say that a – going into a corner you’ve started to turn in and
you release the brakes to about .8 Gs so you’re not using the whole force, OK? And you’re
also trading off some of this braking force for cornering force. Let’s say you use half
a G of cornering force. Alright? So let’s – let me mark these up here. So you’ve got
eight, point eight Gs, braking. And point five of lateral. So let’s just make a little
annotation here. Alright? I want you to note – and I’m just going to repeat this – that
the force in any one direction is only as good as one G. OK? But I want you to add these together. And
this is the really important part. This is the payoff. You’ll know – notice that when
combining forces you’re using a total force of 1.2 Gs. Which is higher than a tire can
produce in any one direction. So by combining these forces you’re really tapping into a
really bizarre mathematical anomaly that allows you to corner at a higher rate than you can
in any one direction. And that’s why it’s faster to mix these forces together. I’m super pumped about this concept. I really
ran with this and implemented this into my racing program a while ago. And it really
paid off. It really is amazing, alright? So that subscription link is still up here.
I want you to click it and get on my list because there are always new videos coming
out and this is really cool stuff that people just don’t talk about enough. It’s all racecar
driving theory that is absolutely going to make you faster if you implement it into your
program. Alright? So go ahead and hit that subscription
button. I’m super excited. I’m going to make another video and I’ll be back soon from howtobecomearacecardriver.com.

Only registered users can comment.

  1. Good video Matt. Like the philosophy behind it. It's 1.3g's though, just busting on you a little. And this is something to work with next track outing. Thanks for keeping these coming and free.

  2. 1.2 g? or 0.94g (=(square root( sqr(0.8)+sqr(.5))), I think just pythagoras. How is the calculation? Please help.

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