We investigated the sensitivity of an observer based on a tire model using simulation in linear and nonlinear regions. In the linear region, we investigated the influence of vehicle speed by doing the same simulation at three speed levels. In the nonlinear region, the simulation condition was set such that the vehicle became unstable. In the linear region, steering input and cornering stiffness have a relatively large effect on the estimation error because these quantities determine tire side force. In the nonlinear region, the road surface's friction coefficient becomes a crucial factor. In both the regions, the observer is sensitive to yaw rate and longitudinal speed.
Sensitivity analysis of side-slip angle observer based on a tire model
Empfindlichkeitsanalyse eines Schräglaufwinkel-Beobachters auf Basis eines Reifenmodells
Vehicle System Dynamics ; 44 , 7 ; 513-527
2006
15 Seiten, 8 Quellen
Article (Journal)
English
Sensitivity analysis of side-slip angle observer based on a tire model
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