ANDECS COMPUTATIONAL EXPERIMENTING WITH THE IAVSD CAR-SUSPENSION BENCHMARK ILTIS

摘要

Nonlinear vehicle system dynamics plays an important role in the development and the assessment of active suspension control systems. The current way of designing active suspension control systems mostly uses simplified models, in order to to apply analytical synthesis methods or to achieve low complexity of the controller when using such methods. However, advanced vehicle design require methodologies, that can deal with more complex vehicle models, as a step towards integrated design. Multi-objective control design is such a methodology, that is open to cope with any controller structure and arbitrary kind of models. In this case study the usefulness of this methodology is investigated by designing an actively controlled vehicle suspension with and without preview for the IAVSD benchmark model ILTIS. The full nonlinear model is used for design. The 'nonlinear' results are compared to the results of a 'linear' design, based on linearized vehicle models.