Abstract ▼ AI-Helper

In this paper, control algorithm of AFS using SBW simulator has been developed and maintenance of vehicle stability has been proved through it. SBW is a system that steer front wheels using electrical motor without mechanical connection. It was composed three systems; reaction system, steer system, ...

In this paper, control algorithm of AFS using SBW simulator has been developed and maintenance of vehicle stability has been proved through it. SBW is a system that steer front wheels using electrical motor without mechanical connection. It was composed three systems; reaction system, steer system, and control system. Reaction system makes a reaction force to steering wheel base on driver’s steer angle and vehicle velocity. Steer system really steer front wheel base on driver’s steer angle. Control system connects and controls these two systems. Reaction system is possible to make actual reaction force using feedback system. It has steer angle and torque measured by potential meter and torque sensor. Steer system was composed of high capacity motor that make reaction force and load cell that measure reaction force. Torque map about reaction force was made using carsim’s 27DOF vehicle model. For Making reaction force to driver used this torque map. To keep vehicle stability, yaw rate from 2DOF was made reference data. Comparing yaw rate from Carsim’s model with 2DOF, stability of Carsim’s model was defined. AFS algorithm was developed to ensure Carsim’s vehicle stability. AFS algorithm was base on SMC. To keep vehicle stability, additional steer angle was made without driver’s steer angle. These simulator system will be used to verify other control algorithm without SMC.

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