Active/semi-active suspension control using magnetorheological actuators

Mansour Karkoub, Mohamed Zribi

Research output: Contribution to journalArticle

61 Citations (Scopus)


Magnetorheological dampers, which are semi-active devices that use MR fluids to produce controllable forces, can be used as smart actuators to reduce the vibrations of mechanical systems. The advantage of these actuators is the low power input requirements and the high output force they produce. An analytical study is performed in this article to examine the effectiveness of this type of actuator in suppressing the vibrations of a passenger car suspension system. A half-car model including passenger dynamics subjected to road disturbance is used. Two MR dampers attached to the front and back axles are used as actuators. An optimal control scheme is used to control the overall suspension system such that the vibrations of the passenger seats as well as the chassis of the car are greatly reduced or eliminated. The simulation results show that properly controlled MR dampers are effective means for vibration suppression for passenger cars.

Original languageEnglish
Pages (from-to)35-44
Number of pages10
JournalInternational Journal of Systems Science
Issue number1
Publication statusPublished - 15 Jan 2006
Externally publishedYes



  • Active suspension
  • Magnetorheological dampers
  • Optimal control
  • Passenger comfort

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Theoretical Computer Science
  • Computer Science Applications

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