Gain-scheduled integrated active steering and differential control for vehicle handling improvement


BAŞLAMIŞLI S. Ç., Kose I. E., Anlas G.

VEHICLE SYSTEM DYNAMICS, vol.47, no.1, pp.99-119, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 1
  • Publication Date: 2009
  • Doi Number: 10.1080/00423110801927100
  • Journal Name: VEHICLE SYSTEM DYNAMICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.99-119
  • Keywords: active steering, active differential control, linear parameter varying systems, gain scheduling, OUTPUT-FEEDBACK CONTROL, DYNAMICS, SYSTEMS
  • Hacettepe University Affiliated: Yes

Abstract

This paper presents a gain-scheduled active steering control and active differential design method to preserve vehicle stability in extreme handling situations. A new formulation of the bicycle model in which tyre slip angles, longitudinal slips and vehicle forward speed appear as varying vehicle parameters is introduced. Such a model happens to be useful in the design of vehicle dynamics controllers scheduled by vehicle parameters: after having expressed the parametric bicycle model in the parametric descriptor form, gain-scheduled active steering and differential controllers are designed to improve vehicle handling at 'large' driver-commanded steering angles. Simulations reveal the efficiency of the selected modelling and controller design methodology in enhancing vehicle handling capacity during cornering on roads with varying adhesion coefficient and under variable speed operation.