Hello , I have assumed that my tyre model obeys to a differential first order equation as follows :
dFij/dt = tau*(-Fij(t)+Fij_0(t))
with i = x,y(longitudinal,lateral) and j = f,r (front, rear) wheels and Fij_0 is an empirical quasi-static model of tyre force (dugoff,pacejka...) In my case I identified this force to dugoff model with a set of input-output measurements.
I don't know how to determine the tau coefficient knowing that I am considering lateral and longitudinal dynamics.
Thank you.