On-center handling characteristics of MDPS system for environmental vehicle

As the needs of motorization in vehicle system increase, studies on the motor driven power steering system (hereinafter referred to as MDPS (motor driven power steering) are actively in progress. Being combined with the current trend for the protection of environment and energy-saving, MDPS will be the main stream of future power steering systems and an intense target of technology innovation. This paper focuses on a computer simulations and experimental results using a real car to evaluate on-center characteristics on MDPS. A comparison between conventional hydraulic power steering system and MDPS for environmental vehicle that is hybrid electric vehicle is also addressed.