Stability of Hydractive CRONE Suspension

Abstract Road vehicles are equipped with electronic control systems of ever-increasing complexity for the control of various functions including suspension. Hydractive CRONE suspension is a new hydropneumatic suspension defmed as a hybrid system. The stability of Hydractive CRONE suspension is demonstrated. Multiple Lyapunov functions, where mechanical energy is considered as a Lyapunov function, have been tried and rejected. Now, two other tools are considered and validated. One uses the maximum principle for the analysis of hybrid system stability. The other uses a single global Lyapunov function in a time-continuous approach