The most basic control algorithm of the electric power steering system in the Korean refrigerating cart CoCo was first commercialized as a prototype in 2022 after the Motor Driven Power Steering (Electric Power Steering) was verified and applied to automobiles. In order to overcome the heavy load of small machines such as refrigerating carts weighing 750Kgf, the driver's great power is required, which can cause muscle skeletal disorders, causing many female drivers to complain of pain, and recently applied electric steering technology because it was urgent. In this study, we study a control algorithm that complements the stability of the existing control algorithm applied to the electric power steering device for electric carts and analyze and verify the steering performance of refrigerated carts through analysis using MATLAB/SIMULINK.

Abstract
1. 서 론
2. 전동카트 시스템 구성부품
3. 전동카트의 EPS 제어로직
    3.1 기본 어시스트 제어
    3.2 요 댐핑 제어
    3.3 토크 댐핑 제어
    3.4 복원 제어
4. 시뮬레이션 환경 구축
5. 조향 성능 해석
    5.1 시뮬레이션 결과 해석
    5.2 실험 결과 해석
6. 결 론
후 기
References

• 장봉춘(Professor, Dept. of Mechanical Engineering, Geyongkuk National University) | Bongchoon Jang Corresponding author