Identification of cornering stiffness during lane change maneuvers

The aim of designing an integrated sensor monitoring platform is to monitor all existing sensors and to estimate the vehicle state variables centrally in order to provide the other function components with information about the actual system state and the vehicle dynamics. One essential part of that platform is to describe the vehicle dynamics as precisely as possible with the help of mathematical models. The cornering stiffness of tires plays an important role in the description of the lateral dynamics. The goal of this contribution is to develop a method for identifying the cornering stiffness coefficients. The identified coefficients are inserted into the corresponding models. Then, investigations of the identification method and the adapted models are carried out in a virtual vehicle. Finally, test results using this virtual vehicle are demonstrated and discussed.