Abstract
The degree of freedom of the steering wheel design has improved along with technological development of electronically controlled steering wheel. On the other hand, many steering control design has been developed aimed at driveability in extreme driving area with vehicle dynamics. This paper assumes an urban driving, explains characteristics of driver's steering action with conventional steering system in low speed and large amount steering situation, and get relations between driver's steering action and steering reaction torque on low gear ratio steering system in order to propose the method of steering control design which actualizes stability of steering and decrease of the amount of steer handling simultaneously.
