Abstract
This paper presents a control algorithm for Steer-by-Wire (SBW) system. SBW system consists of two parts. One is steering wheel system and the other is front wheel system. Front wheel system is the tie-rod actuating type. The steering wheel motor and the front wheel motor are modelled using Bond graph method and controlled. The control algorithm of the steering wheel system used the torque map to generate reactive torque and transfer information of the road to the driver. In tie-rod actuating type, there are two motors, independent actuating. In development the tie-rod actuating type SBW system, the Ackerman constraint was used for control the two motor to improve stability and maneuverability. The validity was verified by full car model.
Keywords:T-SBW System (Tie-rod Actuating Steer-by-Wire System), Torque Map, Ackerman Constraint, Stability, Maneuverability, Bond graph modeling