Abstract
In this paper, the development of a hydraulically interconnected suspension (HIS) system model and the integration of this model into a four degree-of-freedom half-car system is briefly introduced. The appropriate frequency response functions are derived in order to simulate the system response to a stochastic road profile. The sprung mass vertical and roll accelerations, the dynamic normal tyre force, and the suspension deflection are considered in the frequency domain up to 20 Hz. The simulated responses of two equivalent half-car models with conventional independent suspensions are also provided for comparison. The results indicate that HIS systems provide a potentially viable method by which to partially overcome the ride/handling compromise.
Keywords: Vehicle dynamics, ride comfort, suspension modelling, interconnected suspension, simulation