EPS와 완전차량모델의 동시시뮬레이션 기술에 관한 연구

The Electric Power Steering (EPS) mechanism proves to be a bright prospect among passenger vehicles ensuring better vehicle safety and fuel economy. This paper describes the development of concurrent simulation technique and simulation integration technique for analysing EPS control system with a dynamic vehicle system. A full vehicle model from CarSim interacting with EPS control algorithm from Matlab Simulink was concurrently simulated with a sinusoidal input condition. The hand wheel torque and steering wheel angle were evaluated and compared with proving ground experimental data. The comparisons from concurrent simulation show a effective way to develop and validate the control algorithm. This concurrent simulation capability was employed for EPS performance evaluation and calibration as well as for vehicle handling performance integration and synthesis.