Modelling and design of a pneumatic CRONE suspension architecture for ride comfort

This paper focuses on the development of the pneumatic CRONE suspension consisting of two different suspension architectures and a switching between them. The so called stiff architecture is oriented to the road behaviour. It enables the use of the levelling system, allowing, amongst others, the body control under driver inputs [Bouvin J-L, Moreau X, Benine-Neto A, et al. CRONE body control under driver inputs through heave velocity regulation, 2017 IEEE Vehicle Power and Propulsion Conference (VPPC), Belfort, France; 2017]. The second one, called CRONE architecture, isolates the vibrations from irregularities in the road surface. It provides outstanding performances in terms of body control under road inputs, robustness of body control to sprung mass variations and vibration isolation. It also enables to resolve the dilemma between mass and damping coefficient, inherent to classic suspensions.