Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Development of a Depth and Working Load Control System for Tractor Using a Proportional Valve

비례밸브를 이용한 트랙터 경심 및 부하제어시스템 개발

  • Published : 2006.02.01
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Abstract

Depth and working load control is one of the most important technique in control system for tractor rotary implement automation. Keeping the depth consistent is critical to bring along crops and to improve the efficiency and quality of the following operations. Keeping the load of engine consistent is an essential factor for the efficiency of operation and engine protection of tractor. In this study we investigated the possibility of application of depth and working load control system for tractor using a proportional valve through field tests. Depth control was implemented by the ascent and descent of 3 point linkage for the change of setting depth. There were 4 mm and 5.2 mm control deviations for setting depths of 50mm and 100mm, respectively. Load control was operated appropriately by the ascent and of descent of 3 point link for the change of setting working load. The standard deviations between setting load and engine load were 171 rpm at 1.3 km/h and 164 rpm at 2.3 km/h tractor travel velocity. The results of experiment showed that the characteristics of response was sufficient to be used as the implement depth and working load control system for tractor using proportional valve.

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References

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  1. Development of Tractor Three-point Hitch Control System using Proportional Valve vol.36, pp.2, 2011, https://doi.org/10.5307/JBE.2011.36.2.89
  2. Electro-hydraulic Characteristic Analysis of Arm-type Implement for Three-point Hitch vol.36, pp.5, 2011, https://doi.org/10.5307/JBE.2011.36.5.314