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논문 기본 정보

자료유형
학술저널
저자정보
Hyeon-Ho Jeon (Chungnam National University) Taek-Jin Kim (TYM) Wan-Soo Kim (Chungnam National University) Yeon-Soo Kim (Chungnam National University) Chang-Hyun Choi (Sungkyunkwan University) Yong-Hyeon Kim (Gint) Yong-Joo Kim (Chungnam National University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.48 No.3
발행연도
2021.9
수록면
597 - 606 (10page)

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초록· 키워드

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Due to the characteristics of the farmland in Korea, forward and reverse shift is the most used. The fatigue of farmers is caused by forward and reverse shifting with a manual transmission. Therefore, it is necessary to improve the convenience of forward and backward shifting. This study was a basic study on the development of a current control system for forward and reverse shifting of agricultural tractors using proportional control valves and a controller. A test bench was fabricated to evaluate the current control accuracy of the control system, and the stability of the controller was evaluated through CPU (central processing unit) load measurements. A controller was selected to evaluate the stability of the proportional valve controller. The stability evaluation was performed by comparing and analyzing the command current of the controller and the actual current measured. The command current was measured using a CAN (controller area network) communication device and DAQ (data acquisition). The actual current was measured with a current probe and an oscilloscope. The control system and stability evaluation was performed by measuring the CPU load on the controller during control operations. The average load factor was 12.27%, and when 5 tasks were applied, it was shown to be 70.65%. This figure was lower than the CPU limit of 74.34%, when 5 tasks were applied and was judged to be a stable system.

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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