Abstract
This research deals with the detailed analysis of tire cornering characteristics. At first, we assume the required elements to express the tire characteristics for vehicle dynamics. Based on the elements, we focus on the difference of the distribution of the contact pressure for the lateral direction between tire testing machine and vehicle. Using the pressure distribution, uniformity of tire for the direction of circumference is considered in the contact area of tire, because the uniformity has an influence on the tire characteristics. In addition, we measured the distribution of the contact pressure for each rib in order to clarify the influence of the load and air pressure. As the results, it is shown that the influence of the circumferential uniformity does not affect the load change. Furthermore, it is shown that the shape of the pressure distribution of the tire testing machine varies depending on load and air pressure. However, it is found that the shape of distribution for pressure on the vehicle doesn't change.
