Optimal LPV control of an Active Suspension System

Optimal LPV control of an Active Suspension System

  • Development and Optimal LPV control of an Active Suspension System Actuated by Linear Motors
  • 108E089 - TUBITAK - 1001
  • Principle Investigator: Ibrahim B. Kucukdemiral, Researcher: Akın Delibaşı
  • 2008 - 2011

The project entitled Development and Optimal LPV control of an Active Suspension System Actuated by Linear Motors with a Grant 108E089 addresses the design and application problem of a novel quarter-car active suspesion prototype system actuated by linear motors together with a linear parameter varying type optimal controller which treats the actuator saturation phenomenon. The constructed system in laboratory consists of two main blocks which are cascaded one above the other. The computer controlled subjacent block is used as a vibrator which simulates the desired road-profile for the topmost system. On the other hand, the topmost system is used as a prototype for the active/pasive quarter-car suspension system. Both systems can be real-time controlled through a Quanser Q8 data acquisition and control card in connection with MATLAB/SIMULINK. The application of various active and passive controllers such as optimal H?, robust and optimal H?, Optimal Linear Parameter Varying L2 controller which focuses on the nonlinearity originated from the actuator saturation, Homogenous-Polynomial- Parameter-Dependent (HPPD) L2 controller which focuses on the nonlinearity originated from the actuator saturation are also examined on the designed system. Besides, the performances of the aforementioned controllers are also tested on real road profiles which were obtained by using an estimation technique developed by the project team. Experimental results clearly demonstrate that the designed controller techniques for LPV systems are very successful.

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Akin Delibasi
Associate Professor of Control & Automation Engineering

My research interests include convex optimization, adaptive optics and switch systems