Tire model with dynamic rolling radius

Hi I am desperately searching for a tire model whithin which a dynamic rolling radius is applied based on magic formula. A tire model that I saw on Matlab pages has a fixed rolling radius at 0.3. That should be the nominal tire radius which is not totally what I am looking for. Can someone please suggest a tire model block for simulink that fulfill this requirement?

Thanks in advance

[Birdman]

What is the magic formula?

[Peppe]

Here

https://se.mathworks.com/help/physmod/sdl/ref/tiremagicformula.html

[wuqiang]

Did you get your problems sloved? and now I need a MF-SWIFT to do with my project and need your help

Answer 1

[Arun Mathamkode]

What do you mean by dynamic rolling radius? Do you want to change it during simulation runtime? As per the documentation, the default value of Unloaded tire-wheel radius is 0.3, that means you can change the value of the radius. But the radius will be a fixed value during the simulation.