Here's another great example of what kind of data can be acquired from the CAN bus.
This is me losing the car a little bit after crossing a wet patch in an otherwise dry corner:
Data:
Green line: Accelerator
Cyan line: Steering wheel angle
Purple line: Combined acceleration (from the CAN bus, unfiltered)
Orange line: Yaw speed a.k.a. rate of vertical rotation (degrees per second)
As you can see from the data, around 1229.5s I hit the wet patch and the car briefly lost ~50% of its grip. I then pressed the throttle too much and, despite counter-steering, the car started to enter a spin. I then counter-steered way too much, and lifted the throttle — which of course made the car snap to the outside. Luckily, I was able to quickly correct my mistake and tuck the car back in the correct direction, avoiding the walls.
Now I need to change my pants and go find a skidpad
