Abstract
In this research, a method of designing an EPS control that achieved an excellent steer feeling without using an actual vehicle was examined. Firstly, evaluation functions to evaluate steer feeling theoretically were set. And it was described that the steer feelings such as "Inertia feeling" and "Viscous feeling" could be expressed by the evaluation functions. Secondly, a target characteristic that made the steer feeling excellent was determined on the evaluation function, and control methods to theoretically achieve this target characteristic was described. Finally, the designed control had been installed in an EPS vehicle. As a result, it was confirmed that the steer feeling in an actual vehicle was excellent with no "Inertia and viscous feeling".
