Simplified vehicle model validation through test track experimental data - An SUV case study analysis
Palavras-chave:
Vehicle dynamics, Tire model, Bicycle model, Vehicle model validationResumo
The vehicle development process benefits from modeling as a tool for investigating ways to improve
performance and efficiency. Vehicle modeling also enables virtualization of vehicle development, aiming to reduce
costs through virtual simulation of use cases. However, the process of conceiving a vehicle requires a systematic
and structured approach that encompasses validation. Complex models can result in increased development costs
and reduced computational efficiency. In this study, a modified three-degree-of-freedom (bicycle) model is pro-
posed to describe vehicle’s lateral dynamics. As important as the vehicle model, a good representation of tire
dynamic through tire models also play an essential role in representing general vehicle dynamics. In this work, tire
force generation is described by Paceijka’s Magic Formula. The reliability of the model proposed is ensured by
comparing it with test track data from a real SUV vehicle, with estimated inertia data. The model output exhibited
correlation with the actual data.
