Active control of vibrations transmitted through a car suspension
by Jean-Gabriel Roumy, Benoit Boulet, Dany Dionne
International Journal of Vehicle Autonomous Systems (IJVAS), Vol. 2, No. 3/4, 2004

Abstract: Among the major sources of ambient noise inside the passenger compartment of an automobile are the road-induced vibrations transmitted to the frame. A reduction of these vibrations' magnitude can be achieved through the addition of feedback-controlled actuators between the suspension attachment points and the car frame. In this paper, a model of a ¼ car suspension (suspension associated to a single wheel) is derived from experimentally acquired data. The structure's modal parameters are extracted from frequency response data, and are used to obtain a state-space realisation. The performance of controller design techniques such as LQR and H_∞ is assessed through simulation.

Online publication date: Fri, 04-Feb-2005

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