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A Semi-Empirical Tire-Model Including the Effects of Camber

Svendenius, Jacob LU and Gäfvert, Magnus (2004) In Report TFRT 7611.
Abstract
This report presents the addition of camber to a previously published semi-empirical tire model by the same authors. The model combines empirical models for pure braking, cornering and cambering to a model for simultaneous braking, cornering and cambering. It is based on brush-model tire mechanics and aims to offer an easy-to-use accurate model for vehicle handling-simulations. The proposed model is a method to extract and rescale the adhesion and sliding forces from empirical pure-slip tire models to account for the combined-slip condition. The combined-slip self-aligning torque is described likewise. Cambering affects the natural path of the tire carcass on the road surface and deforms the threads to produce an additional force in the... (More)
This report presents the addition of camber to a previously published semi-empirical tire model by the same authors. The model combines empirical models for pure braking, cornering and cambering to a model for simultaneous braking, cornering and cambering. It is based on brush-model tire mechanics and aims to offer an easy-to-use accurate model for vehicle handling-simulations. The proposed model is a method to extract and rescale the adhesion and sliding forces from empirical pure-slip tire models to account for the combined-slip condition. The combined-slip self-aligning torque is described likewise. Cambering affects the natural path of the tire carcass on the road surface and deforms the threads to produce an additional force in the lateral direction. Thereby, the proportions of the sliding and adhesive forces changes. The model is computationally sound and efficient and does not rely on any additional parameters that depend on combined-slip data for calibration. It can be used in combination with virtually any empirical pure-slip model. The report also contains a validation of the combined slip behavior towards measurement data from a Jeep Cherokee equipped with Goodyear-wrangler tires. (Less)
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author
organization
publishing date
type
Book/Report
publication status
published
subject
keywords
Tire model, Camber, Combined slip, Tire forces, Brush model
in
Report TFRT
volume
7611
publisher
Department of Automatic Control, Lund Institute of Technology (LTH)
ISSN
0280-5316
language
English
LU publication?
yes
id
390e8609-a558-4347-ad31-2ee3ea107a41 (old id 8602629)
date added to LUP
2016-02-15 18:57:20
date last changed
2016-04-16 03:53:05
@techreport{390e8609-a558-4347-ad31-2ee3ea107a41,
  abstract     = {This report presents the addition of camber to a previously published semi-empirical tire model by the same authors. The model combines empirical models for pure braking, cornering and cambering to a model for simultaneous braking, cornering and cambering. It is based on brush-model tire mechanics and aims to offer an easy-to-use accurate model for vehicle handling-simulations. The proposed model is a method to extract and rescale the adhesion and sliding forces from empirical pure-slip tire models to account for the combined-slip condition. The combined-slip self-aligning torque is described likewise. Cambering affects the natural path of the tire carcass on the road surface and deforms the threads to produce an additional force in the lateral direction. Thereby, the proportions of the sliding and adhesive forces changes. The model is computationally sound and efficient and does not rely on any additional parameters that depend on combined-slip data for calibration. It can be used in combination with virtually any empirical pure-slip model. The report also contains a validation of the combined slip behavior towards measurement data from a Jeep Cherokee equipped with Goodyear-wrangler tires.},
  author       = {Svendenius, Jacob and Gäfvert, Magnus},
  institution  = {Department of Automatic Control, Lund Institute of Technology (LTH)},
  issn         = {0280-5316},
  keyword      = {Tire model,Camber,Combined slip,Tire forces,Brush model},
  language     = {eng},
  series       = {Report TFRT},
  title        = {A Semi-Empirical Tire-Model Including the Effects of Camber},
  volume       = {7611},
  year         = {2004},
}