타이어 특성인자에 따른 차량 전복 동특성 해석에 관한 연구

Single vehicle accidents sometimes lead to vehicle rollover. Rollover is defined as a vehicle rotation of 90 degree or more around its longitudinal axis. In this paper, the multi-body vehicle dynamic model has been constructed to investigate vehicle rollover propensity. The vehicle dynamic model consisted of body, suspension, steering, power-train, brake, tire, road, and driver subsystems. The whole vehicle parameters, each vehicle's part parameter, part connecting elements such as spring, damper and bush, and tire characteristic factors were measured by an experiment to accomplish accurate rollover analysis. With the developed vehicle dynamic model, rollover characteristic analysis due to tire characteristic factors, such as cornering stiffness and cornering force peak has been carried out.