An original feedback control with a reversible electromechanical actuator used as an active isolation system for a seat suspension. Part II: Experimental study

From the theoretical study presented in [1], we investigate the experimenta l feasibility of the active seat suspension to improve ride comfort. The pr ototype of the reversible electromechanical actuator used in the active sea t suspension is presented. First, the kinematic guide with a vertical auto- levelling system is described. Second, the electromechamical actuator and t he power drive transmission are presented. It is noticed that the prototype design is achieved with a systemic approach taking into account the indust rial constraints. Then, the laboratory experimental setup is described. Sev eral tests are performed on the prototype for model validation and performa nce purposes. Correct force feedback control in the actuator is verified. T he real performances of the active seat suspension on a prototype is invest igated for different pertubation inputs. Experimental results clearly show the efficiency of the active seat suspension to improve passenger comfort a nd demonstrate its feasability.