1996-02-01

Requirements of a Tire Model for Practical Cornering Simulations of Vehicles 960179

This paper presents the requirements of a tire model used to realistically simulate the cornering maneuvers of passenger cars during driving/braking maneuvers such as J-turn, lane change, slalom, etc In order to overcome the limits of present tire models, new concept is employed. This study examines a force transfer from the contact patch to the wheel as well as a force generation at the contact patch A new definition of slip ratio suitable for vehicle dynamics analysis and closely comparable with are mechanics is introduced A new slip angle is additionally defined in order to conveniently formulate the transient response of a cornering tire Longitudinal force, lateral force and self-aligning moment are semi-analytically formulated as functions of the characteristic parameters of tire compliances, friction and contact pressure

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