Automated Guided Vehicle (AGV) is commonly used in manufacturing plant, warehouse, distribution center, and terminal. AGV is self-driven vehicle used to transport material between workstations in the shop floor without the help of an operator, and AGV includes a material transfer system located on the top and driving system at the bottom to move the vehicle as desired. For navigation, AGV mostly uses lane paths, signal paths or signal beacons. Various predominant sensors are also used in the AGV. However, in the conventional AGV, there is a problem of not turning or damaging nearby objects or AGV in a narrow space. In this paper, a new driving system is proposed to move the vehicle in a narrow space. In the proposed driving system, two sets of the combined steering-drive unit are adopted to solve the above problem. A prototype of AGV with the new driving system is developed for the comparative analysis with the conventional AGV. In addition, the experimental result shows the improved performance of the new driving system in the maximum speed, braking distance and positioning precision tests.

1. 서 론
2. 듀얼 Steering Drive(SD) 장치 개발
    2.1 종래의 싱글 SD 유닛을 갖는 주행장치의구조와 회전성능
    2.2 제안되는 듀얼 SD 유닛을 갖는 주행장치의구조와 회전성능
3. 결과 및 고찰
    3.1 최소 직각적재 통로 폭에 의한 회전성능 비교
    3.2 기타 성능측정 결과
4. 결 론
References

• Chang-Yeon Won(국립 한밭대학교 기계공학과) | 원창연
• Seon-Mo Kang(㈜엠텍) | 강선모
• Yoon-Eui Nahm(국립 한밭대학교 기계공학과) | 남윤의 Corresponding Author