Abstract
A new state estimation methodology is presented and validated to be applied to complex multibody systems modeled in Adams $${^{\circledR }}$$ . Traditional state observers are developed to be applied to explicit mathematical models. Given the complexity of some special multibody systems, particularly in vehicle dynamics, simplifications are needed to be able to apply this control technique. Nevertheless, tridimensional multibody systems are usually completely modeled in multibody dynamics simulation software, such as Adams $${^{\circledR }}$$ from MSC Software, for simulation, analysis and optimization, including highly nonlinear dynamic elements, such as the tires and the silent blocks in vehicle dynamics. Therefore, applying state observers to these non-explicit models is a real need in order to continue improving control systems on these systems. The methodology being presented and validated is a first step in this direction.
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