Mixed H2/H∞ with Pole-Placement Control Design Outline for Active Suspension Systems

Abstract:

This paper consider the control of active automotive suspensions applying Mixed (H2/H∞) state-space optimization techniques. It is well known that the ride comfort is improved by reducing vehicle body acceleration generated by road disturbance. In order to study this phenomenon, Two Degrees of Freedom (DOF) in state space vehicle model was built in. However, the H∞ control method attenuates the agitation effect on the output while H2 is employed to improve the input of the controller. Linear Matrix Inequality (LMI) technique is employed to calculate the dynamic controller parameters. The outcome of the simulation revealed that ride comfort for the vehicle upgraded adequately by applying mixed H2/H∞ Control method for active suspension system, and also the mixed H2/H∞ Control method was more effective than the H∞ Control method.

• Periodical: Applied Mechanics and Materials (Volume 663)
• Pages: 152-157
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.663.152
• Online since: October 2014
• Authors: Aghil Shavalipour*, Sallehuddin Mohamed Haris
• Keywords: LMI Approach, Mixed H2/H∞ Control, Pole-Placement, Quarter Car Suspension System

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