Vehicle Shimmy Modeling With Pacejka's Magic Formula and the Delayed Tire Model
Mi Tian, Gábor Stépàn, Dénes Takács, Nan Chen
Abstract
Abstract This paper investigates a three-degrees-of-freedom (DoF) shimmy model of vehicle front wheels with steering system and dependent suspension. The contact models of rigid ground and elastic tire are analyzed from the viewpoint of predicting shimmy. Pacejka's magic formula and the delayed tire model are compared by means of stability charts in various parameter domains. Conclusions are obtained regarding the advantages and disadvantages of the use of the delayed tire model.
Topics & Concepts
Speed wobbleAutomotive engineeringTreadControl theory (sociology)Suspension (topology)Slip (aerodynamics)Computer scienceEngineeringStructural engineeringMathematicsPhysicsClassical mechanicsAerospace engineeringMaterials scienceComposite materialControl (management)Pure mathematicsHomotopyNatural rubberArtificial intelligenceVehicle Dynamics and Control SystemsSoil Mechanics and Vehicle DynamicsMechanical Engineering and Vibrations Research