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Evaluation of Ride Performance of Active Inerter-Based Vehicle Suspension System with Parameter Uncertainties and Input Constraint via Robust H ∞ Control

Author

Listed:
  • Keyvan Karim Afshar

    (Department of Process Control, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

  • Roman Korzeniowski

    (Department of Process Control, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

  • Jarosław Konieczny

    (Department of Process Control, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

Abstract

In this study, we investigate a robust H ∞ controller for a quarter-car model of an active inerter-based suspension system under parameter uncertainties and road disturbance. Its main objective is to improve the inherent compromises between ride quality, handling performance, suspension stroke, and energy consumption. Inerters have been extensively used to suppress unwanted vibrations from various kinds of mechanical structures. The advantage of inerter is that the realized ratio of equivalent mass (inertance relative to the mass of the primary structure) is greater than its actual mass ratio, resulting in higher performance for the same effective mass. First, the dynamics and state space of the active inerter-based suspension system were achieved for the quarter-car model with parameter uncertainties. In order to attain the defined objectives, and ensure that the closed-loop system achieves the prescribed disturbance attenuation level, the Lyapunov stability function, and linear matrix inequality (LMI) techniques have been utilized to satisfy the robust H ∞ criterion. Furthermore, to limit the gain of the controller, some LMIs have been added. In the case of feasibility, sufficient LMI conditions by solving a convex optimization problem afford the stabilizing gain of the robust state-feedback controller. According to numerical simulations, the active inerter-based suspension system in the presence of parameter uncertainties and external disturbance performs much better than both a passive suspension with inerter and active suspension without inerter.

Suggested Citation

  • Keyvan Karim Afshar & Roman Korzeniowski & Jarosław Konieczny, 2023. "Evaluation of Ride Performance of Active Inerter-Based Vehicle Suspension System with Parameter Uncertainties and Input Constraint via Robust H ∞ Control," Energies, MDPI, vol. 16(10), pages 1-20, May.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:10:p:4099-:d:1147296
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    References listed on IDEAS

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    1. Jarosław Konieczny & Marek Sibielak & Waldemar Rączka, 2020. "Active Vehicle Suspension with Anti-Roll System Based on Advanced Sliding Mode Controller," Energies, MDPI, vol. 13(21), pages 1-27, October.
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