A special class of autonomous linear switched systems is considered, where: (a) the allowed mode switches are described by an automaton where to each state is associated a dynamics, and to each transition a switch; (b) the interval between two consecutive switching times is bounded from below. The optimal control with quadratic performance index over infinite time horizon is considered. The decision variables are the switching times and the mode sequence, under the following constraints: the mode sequence has finite length; an automaton restricts the possible switches within adjacent locations, with a cost associated to each switch; the time interval between two consecutive switches is greater than a fixed quantity. A state-feedback solution is computed off-line through a numerical procedure. The method is extended to the case of infinite number of switches. The proposed approach has been applied to design a semi-active suspension system for road vehicles. A hybrid model of the quarter-car semi-active suspension system has been considered, where each linear dynamics corresponds to a given value of the damping coefficient. The results of some numerical simulations are presented and the comparison with both passive and active suspensions is also shown.
Optimal control of hybrid automata: design of a semiactive suspension
Optimalwertregelung eines hybriden Automaten: Entwurf der quasiaktiven Radaufhängung
Control Engineering Practice ; 12 , 10 ; 1305-1318
2004
14 Seiten, 9 Bilder, 2 Tabellen, 25 Quellen
Aufsatz (Zeitschrift)
Englisch
Semiactive Suspension Design with an Optimal Gain Switching Target
Online Contents | 1999
|Semiactive Suspension Design with an Optimal Gain Switching Target
Taylor & Francis Verlag | 1999
|Semiactive suspension design with an optimal gain switching target
Tema Archiv | 1999
|Semiactive suspension design with an optimal gain switching target
Kraftfahrwesen | 1999
|Design of a Predictive Semiactive Suspension System
Taylor & Francis Verlag | 2004
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