Improvement of low-frequency comfort through the design of CRONE-SkyHook suspension systems

This paper deals with vehicle dynamics and focuses on Global Suspension Control. The aim is to improve low-frequency comfort, defined in the frequency range [0; 5] Hz, of an active suspension system. Therefore, an analysis and design approach is proposed on a functional scale. A target behavior of the equivalent open-loop, seen from the angle of low-frequency comfort, is generalized using CRONE-SkyHook (CSH) approach. The controller implemented on the validation model is therefore deduced. Simulation results show that requirements in terms of body handling under road solicitations and filtering are reached.