An LMI based model predictive control scheme with guaranteed /spl Hscr//sub /spl infin// performance and its application to active suspension

In the framework of LMI optimization, we present a robust MPC scheme that is guaranteed to achieve closed-loop /spl Hscr//sub /spl infin// performance for linear systems with control and output constraints. The main ingredient is the introduction of a dissipation constraint combined with on-line minimizing the /spl Hscr//sub /spl infin// performance level. Simulation results for a realistic active vehicle suspension show that the proposed scheme has the capability of automatically relaxing the performance level in order to obey hard time-domain constraints, while enhancing it when sufficient 'reserves' in the dissipation constraint have been accumulated so as to improve performance.

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