ABSTRACT
The formerly developed tire model which describes the tire transient response of side force and aligning moment under the time-varying vertical load was implemented to the vehicle dynamics simulation software (IPG CarMaker) and the influence of tire side force transient property on the vehicle behavior was investigated. The vehicle responses with/without tire transient property on sinusoidally undulated road surfaces were simulated and compared. It was seen that the average lateral acceleration of the vehicle to the sinusoidal steering wheel angle input decreases on undulated roads of rather long wavelength (3m) for both cases, but when the wavelength becomes shorter (1m), the average lateral acceleration increases only in the case that the transient property is considered. Also the steady state turning behavior of the vehicle on undulated roads was shown.
