Estimation of dynamical parameters of road vehicles on freeways

An identification method is presented for the parameters of a suspension system where nonlinear components are taken into consideration. Since not all the variables necessary for the identification are measured, some numerical techniques need to be applied, such as a numerical integration of measured signals. It is also shown that the selection of the sampling time might be critical in this type of application. By using the result of this identification an algorithm is given for the road disturbance reconstruction. The road roughness estimation is based on this reconstructed signal. In this paper for classification purposes an autoregressive model structure is used.