Abstract
Road roughness is a significant factor to the ride comfort and the maneuverability of an automobile. In this paper, we propose an estimation method of a road profile from measurement data during running test with an experimental vehicle. The estimation method is based on iterating multibody analysis, and uses multibody vehicle model based on an electric vehicle developed in our laboratory. In order to confirm of the validity of the estimation method, running test was conducted with this electric vehicle. Estimated road profile was compared to an actual road profile, and the accuracy of an estimated road profile was evaluated.
