Adaptive LQR Control Strategy for Active Suspension System

Paper #:
  • 2011-01-0430

Published:
  • 2011-04-12
DOI:
  • 10.4271/2011-01-0430
Citation:
Soliman, A., "Adaptive LQR Control Strategy for Active Suspension System," SAE Technical Paper 2011-01-0430, 2011, https://doi.org/10.4271/2011-01-0430.
Pages:
9
Abstract:
In this study, LQR control design is presented for the control of a vehicle active suspension system. Seven degrees of freedom, full vehicle model is used. LQR control system is prepared as well as adaptive LQR control system (gain scheduling strategy) to study the effect of each control system using the active suspension on ride performance. The acceleration and dynamic tyre load are evaluated. For the time domain analysis, different road conditions are considered in order to reveal the performance of the two controllers. The simulation results showed that adaptive LQR control system gives a better ride performance compared with LQR control system. Also, the comparison between these control strategies are discussed.
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