Influence of testing surface on tire lateral force characteristics – Einfluss der Prüfoberfläche auf die Reifenseitenkraft-Eigenschaften

Abstract

An accurate representation of tire lateral forces is vital for vehicle dynamics simulation. At early stage of a vehicle project, the data used to build up a vehicle's simulation model are mostly sourced from component test rigs. Widely used tire test rigs, such as a Flat Track, inner drum or outer drum, are usually equipped with sand paper surfaces to simulate as close as possible the tire/road interface forces. Extending the approach of [1] this study presents the analysis and discusses the results of real road tests in comparison with indoor flat track tests. For deeper insight, a detailed friction analysis was used for both surfaces based on the mobile friction test rig "LiRep" from FKA Aachen.