In part one of tyre temperature modelling series last month, we talked about the two temperature metrics to watch for in a tyre: internal and surface temperature, and what they look like.
We then discussed the effects of internal tyre temperature and pressure, and how that affects grip. This month, we are going to look at the effects of tyre surface temperature on grip, and how you can model it.
To put where tyre surface temperature modelling fits into context, we need to take a step back and consider when the traction circle radius is a function of load only. I often refer to this as a 2D tyre model, a typical correlation of which is shown in figure 1.
A 2D tyre model is an excellent first cut toward obtaining a very useable and effective tyre model. You can also get a fair way down the road with this, particularly with a model you are using for DiL. In
