On the Design of an Active Roll Control System for a Luxury Car

Abstract

The handling responses of an actively suspended large car to ramp steering wheel inputs are calculated. The car is fitted with rotary actuators in the anti-roll bars at front and rear, operating under displacement control and stimulated by the output from a lateral acceleration sensor, constituting an active roll control system. The study is closely associated with an earlier one and the system model utilized is the same. New results are generated. They show the influences of changing the speed of response of the flow control valve and the sampling frequency of the digital control scheme. More complete energy consumption computations are reported. The results add significantly to those already published. The viability, in terms of performance capabilities, of roll control systems of this nature is confirmed and, taken together with the earlier results, the present work defines more closely the design needs of this type of system.