Application of Masing Friction Model to the Improvement of Electronic Power Assisted Steering System in Terms of On-Center Steering Feel

Abstract

Masing friction model is indispensable as the physical model of hysteresis phenomena in vehicle dynamics area, such as ride comfort, noise, and vibration. Another phenomenon in vehicle dynamics area, which is supposed to have much to do with friction is the inferior on-center steering feel of Electronic Power assisted Steering (EPS), compared to that of Hydraulic Power assisted Steering (HPS). The paper proposes a method to improve the on-center steering feel of EPS beyond that of HPS by the application of Masing model to EPS control algorithm.