H∞ Output Feedback Control for Vehicle Seat Suspension subject to Parameter Perturbations

Considering the parameter perturbations of seat suspensions, an H∞ output feedback controller is established based on the theory of uncertainty, linear matrix inequality and H∞ optimal control. The result of numeric simulations testifies that the controller effectively isolates the drivers from external exciting and improves the ride comfort when plant subjects to parameter perturbations, even if only the seat frame acceleration acts as measuring output.