Performance of Robust μ Synthesis Control for Mechatronic Suspension System

Abstract:

The main goal of using mechatronic suspensions is to improve the ride comfort and handling performance. In this work, a robust linear controller for such a system was designed based on the μ synthesis method. The performance of a model two degree of freedom quarter car with parameter perturbations, subjected to road disturbances, was simulated and the time domain responses were analyzed. The simulation results indicate that the robust controller improved the vibration isolation performance of the mechatronic suspension system, despite the presence of parameter perturbations and exogenous disturbances. When compared to both LQG active control and to a passive suspension system, the μ synthesis controller also showed super or performance.

• Periodical: Applied Mechanics and Materials (Volume 471)
• Pages: 247-252
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.471.247
• Online since: December 2013
• Authors: Wajdi S. Aboud, Sallehuddin Mohamed Haris
• Keywords: Active Suspension μ Synthesis, LQG, Mechatronic Suspension, Robust Control

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