Abstract
Steering is one of the key systems for having good vehicle maneuvering. In order to simultaneously satisfy various requests for steering performance, it is necessary to design properly transfer characteristics of the steering component parts. It has been working on to clarify the relationship between the steering performance and the characteristics of the steering component parts, and to establish a process that can be designed quantitatively the characteristics of the elements. In this paper, a physical model that represents the steering performance is proposed. Then, a design method to achieve the target performance of the steering elements corresponding to the type of steering system performance is described.