In-Tyre Sensors Induced Benefits on Sideslip Angle and Friction Coefficient Estimation

Paper #:
  • 2015-01-1510

Published:
  • 2015-04-14
DOI:
  • 10.4271/2015-01-1510
Citation:
Sabbioni, E., Ivone, D., Braghin, F., and Cheli, F., "In-Tyre Sensors Induced Benefits on Sideslip Angle and Friction Coefficient Estimation," SAE Technical Paper 2015-01-1510, 2015, doi:10.4271/2015-01-1510.
Pages:
10
Abstract:
Aim of this study is to analyze the benefits of the measures provided by smart tyres on tyre-road friction coefficient and vehicle sideslip angle estimation. In particular, a smart tyre constituted by 2 tri-axial accelerometers glued on the tyre inner liner is considered which is able to provide the measures of the tyre-road contact forces once per wheel turn. These measures are added to the ones usually present onboard vehicle (steer angle, lateral acceleration and yaw rate) and following included into an Extended Kalman Filter (EKF) based on a single-track vehicle model. Performance of the proposed observer is evaluated on a series of handling maneuvers and its robustness to road bank angle, tyre and vehicle parameters variation is discussed.
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