High-performance multibody models of road vehicles: Fully symbolic implementation and parallel computation

The needs for analyzing vehicle dynamics rely on advanced modelling techniques, efficient program implementation and high-level computer environment. To match these requirements, two important assets should characterize modern modelling tools: computer efficiency (indispensable, for instance, for real time control or system optimization) and portability (indeed, multi-domain modelling is more and more required). In the frame of vehicle dynamics, a symbolic multibody approach is proposed in this paper. Vehicle model efficiency, which will be quantified through examples, results from a fully symbolic generation of the dynamical model in recursive form, and the resort to parallel computation techniques. Portability towards other computer environment is also ensured by the symbolic approach, the latter being able to export equations in a very versatile way