A multiobjective approach for H2 and H∞ active suspension control

This paper presents a methodology for the multiobjective design of active suspension control. The method is based on existing algorithms of optimal control synthesis with cost function employing some weighting of the primary objectives “user comfort”, “rattlespace” and “road-holding ability´” The optimal H₂ and the central H_∞ controllers are used as two instances of such algorithms. The method leads to (local) Pareto-optimal solutions and allows the direct specification of controller constraints in terms of that primary objectives. An example shows the superiority of the proposed methodology in relation to classical designs