Abstract
Drive-by-Wire (DBW) technologies improve conventional vehicle performance and a Steer-by-Wire (SBW) system is one of the DBW technologies. The control algorithm of the SBW system was designed in this paper. The first aim of the control algorithm is controlling the steering wheel assist motor to make the real vehicles steering feel and for a vehicle designer to adjust the steering feel as he finds necessary.
The second aim is controlling the front wheel assist motor to improve vehicles maneuverability and stability by using understeer and oversteer propensity of a vehicle. A Hardware-In-the-Loop-Simulation (HILS) system was constructed to validate the SBW system control algorithm. By using the HILS system, a number of simulations in various situations can be performed easily and the development cost can be reduced.