Design of anti-roll bar systems based on hierarchical control

Balázs Varga, Balázs Németh, P. Gáspár

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This paper proposes the modelling and control design of active anti-roll bars. The aim is to design and generate active torque on the chassis in order to improve roll dynamics. The control system also satisfies the constraint of limited control current derived from electrical conditions. The dynamics of the electro-hydraulic anti-roll bar are formulated with fluid dynamical, electrical and mechanical equations. A linear model is derived for control-oriented purposes. Several different requirements and performances for the control influence the hierarchical handling of the control design. In the hierarchical architecture, a high level improves chassis roll dynamics via a gain-scheduling linear quadratic (LQ) control, while a low level guarantees the input limitation and produces the necessary actuator torque by a constrained LQ control. The operation of the designed anti-roll bar control system is illustrated through simulation examples.

Original languageEnglish
Pages (from-to)374-382
Number of pages9
JournalStrojniski Vestnik/Journal of Mechanical Engineering
Volume61
Issue number6
DOIs
Publication statusPublished - 2015

Fingerprint

Chassis
Torque
Control systems
Electric current control
Actuators
Scheduling
Hydraulics
Fluids

Keywords

  • Anti-roll bar
  • Automotive control application
  • Gain-scheduling
  • Hydraulic actuator
  • LQ

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Design of anti-roll bar systems based on hierarchical control. / Varga, Balázs; Németh, Balázs; Gáspár, P.

In: Strojniski Vestnik/Journal of Mechanical Engineering, Vol. 61, No. 6, 2015, p. 374-382.

Research output: Contribution to journalArticle

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