A study of the cornering force by use of the analytical tyre model

An analytical tyre model for the cornering force (CF) and the self-aligning torque (SAT) is described on the basis of the Fiala model. The CF and SAT come mainly from the shear stress and sliding friction at the tread-road interface. The variations in CF and SAT also change the kinetic conditions for their own generation mechanisms; that is, the contact pressure distribution, the tread-base shape and the relative position of the steering axis within the contact patch are altered. The present model, namely the CF-SAT system model, which includes the conditional changes through the CF and SAT feedback loops, approximates the slip-angle dependence of CF and SAT with high accuracy. Least-squares fit of the measured data with the combined use of the cornering power-self-aligning torque power system model and the CF-SAT system model reveals the equivalent part stiffness, the tread friction coefficient and the transient circumferential distribution of contact pressure. The system models may be useful for both tyre production at tyre makers and the vehicle dynamics simulation at car makers. For the covering abstract see ITRD E127429.

  • Availability:
  • Authors:
    • LUGNER, P (
    • PLOECHL, M (
    • MIYASHITA, N
    • KABE, K
  • Publication Date: 2005

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01014272
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-415-392-632
  • Files: ITRD
  • Created Date: Dec 22 2005 2:08PM