Working with Data – Session1

So if you read ultimate speed secrets by Ross Bentley, he starts with vision, then goes to vehicle dynamics, then cornering, then putting it all together where you need to think about the line, corner entry, corner exit, and mid-corner. So… how do you practice intentionally to work on all of this? I started by just working on vision, and hands, then started with corner entry, and have now been focusing on corner exit, working with data is the only way I can “know” that its working.

A lot of the guys at the track talked about using Harry’s LapTimer (HLT) on their phones to record their track data, so that is where I started. First I just used the app by itself without a mount, and just picked up my speed, GPS, and G-forces. After doing some research, and asking around I decided to upgrade my setup slightly by adding a higher frequency GPS receiver, and an OBDII sensor. Harry’s site has a link to compatible accessories. After I was able to get data into the app, it was a question of how to get it out, and analyze. After more research I figured out that you can export .vbo files out of HLT to dropbox which are compatible with Circuit Tools. This is a nice little inexpensive setup that is pretty powerful. Now the real question, what to do with it?

Luckily, Courtney is awesome, and we setup a morning to work with just data, so here is what we did:

Data Acquisition Experimentation Exercises Session 1:

Drive 2 laps for warm up. 
Set baseline on 3rd lap. 

4-9 Different Braking Techniques
10-11 Hands
12. Cool down

We captured all of the laps using HLT, and then analyzed them in Circuit Tools, it was easy to see what worked, and what didn’t, and translate that to vehicle dynamics, a really amazing, and powerful lesson. 
Here is the video of the session

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