A study on load dependent controller performance for mechatronic suspensions

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The purpose of mechatronic suspensions, or also known as active suspension systems, is to improve ride comfort and road handling. It is proposed that a switching adaptive control scheme be used in an active suspension setup. In the proposed switching control scheme, different controllers are to be activated under different load conditions. In this research, an analytical investigation into the response of a two degree-of-freedom quarter car suspension model, subjected to a bump road disturbance was performed. Both passive and active systems were studied in time domain analysis. The system was simulated under no load, half load and full load sprung mass load conditions. For the active system, different controller gains were used for each sprung mass load. Each of the gains was tuned using LQR and LQG optimization. The performance of the mechatronic suspension showed significant improvements over the passive system. However, the performance of the active suspension controllers, under the respective load conditions for which they were tuned, showed noticeable variations.

Original languageEnglish
Pages (from-to)611-616
Number of pages6
JournalInternational Review of Mechanical Engineering
Volume6
Issue number3
Publication statusPublished - 2012

Fingerprint

Mechatronics
Controllers
Active suspension systems
Time domain analysis
Railroad cars

Keywords

  • Body acceleration
  • LQG
  • LQR
  • Multiple model adaptive control
  • Suspension deflection
  • Switching control
  • Tyre load

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

A study on load dependent controller performance for mechatronic suspensions. / Aboud, Wajdi S.; Mohamed Haris, Sallehuddin.

In: International Review of Mechanical Engineering, Vol. 6, No. 3, 2012, p. 611-616.

Research output: Contribution to journalArticle

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