EPS 필터 설계 방법 연구

EPS is an Electric Power Steering system using a electric motor to assist the power to the steering system. To control the motor an EPS control algorithm should be designed and a filter design is necessary to reduce the system noize and resonance frequency when dealing with sensor signal processing. This research paper built up a steering system model and an EPS control logic and studied on filter design method. The steering system model was simplified and a transfer function was calculated. The natural frequency of steering system was found by bode plot and the frequency was used to design a torque stability filter. Also through the filter design it is found that how the filters effected on the system responses.