Hi. I have tire data from the TTC from 2005. I'm looking at the pacejka coefficients provided by Stackpole.
I've entered the coefficients and equations for the Hoosier 18x6-10 43101 @12psi tire into matlab and plotted. I'm having trouble getting my lat force vs Slip angle plot to match their plot. I'm getting a plot that has a similar shape curve, but the lateral forces are about 5 times greater on my plot than on the one provided in the documentation.
They define slip angle in radians and forces in Newtons. But they also have a dFz term in the equations that isn't defined anywhere that I can see. What is dFz supposed to be? Actual wheel load minus Nominal wheel load? That's what I've got and it's not working..
edit: this thread refers to dfz = (Fz-Fzo)/Fzo. I did that and it made the plot even worse..
Also does anyone know if there a way to convert their coefficients into the more common a0, a1... coefficients?
Thanks in advance.