Reduced multiobjective control of active vehicle suspensions in an HiL framework

This paper designs an H₂ controller with pole placement for a half-vehicle suspension system, reduces the controller order nearly by half and implements it in a digital signal processor. The mixed H₂ and pole placement control strategy, together with controller order reduction, makes the controller hardware implementation reliable and easy. The reduced controller, assessed by both software simulations and hardware-in-the-loop experiments, effectively improves vehicle ride comfort while satisfying the constraints on suspension travel, tyre deflection and actuator force.