Abstract: Based on the integrated models of ‘vehicle-seat-people’， an integrated vehicle seat and suspension robust H_∞ integrated control strategy was proposed by using linear matrix inequalities (LMI) technique. An H_∞ state feedback controller of integrated vehicle seat and suspension was designed， with the PSD of vertical body acceleration chosen as the controlled outputs and the limits of dynamic suspension deflection， relative dynamic tire load， and integrated control force chosen as the constrained outputs. The MATLAB simulation was employed in the paper， and the simulation results confirm the feasibility and effectiveness. The analysis results provide a fundamental basis for the study of active control suspension system.

Key words: integrated control, active seat suspension, robust H_∞ control, active vehicle suspension, linear matrix inequalities, vehicle