Regeneration of the road profile to compensate tyre nonlinearity for virtual testing. (1st September 2004) - Sohn, Jeong-Hyun
In vehicle driving simulations, modelling the tyre precisely is not easy due to the nonlinear effects of tyre deformation. Instead of precise tyre modelling, this paper proposes to regenerate the road profile, which preserves the measured wheel accelerations with a linear tyre model in computer simulations. Frequency response functions between the road and the wheel are used to regenerate the road profile. The error function between the experimental results and the simulation results is defined, and a new road profile is generated by iteration to reduce the error function. From the full car example, the proposed method in this paper shows very good results, and thus the new method seems well suited in virtual driving simulations.