Robust Controller Design for Vehicle Semi-Active Suspensions with Electroheologocal Dampers

This paper presents a novel design for Demand

Dependent Active Suspension (DDAS) focusing on vehicle

rollover control. Active suspensions take credit for improving

ride comfort and handling performance, but to use active

suspension in vehicle rollover control has not been widely

investigated. The proposed active suspension design consists of

four double direction hydraulic actuators, hydraulically

interconnected, and it can actively tilt the vehicle against its roll

motion by supplying a required restoring moment, which is over

the competence of passive or semi-active suspension. Based on a

real vehicle fitted with DDAS, the experimental investigation

validates the effectiveness of DDAS in vehicle rollover control.