Design, Development, and Technical Evaluation of an Automatic Controlling System for Repositioning of Rotary Tiller Soil Shield

Document Type : Research Paper

Authors

1 Former student of Department of Biosystems Engineering, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran

2 Assistant Professor, Department of Biosystems Engineering, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran

Abstract

Abstract: In the present study, an electro-hydraulic system for repositioning the soil shield of a rotary tiller was designed, developed, and evaluated to make it automated for performing variable rate tilling operation. The reposition of the soil shield was studied in the opening and closing stages from 0° to 80° and vice versa, with a 10° and 20° increment under laboratory and field conditions, respectively. Under laboratory conditions, the speed average of soil shield reposition in the opening and closing stages were 102.0±9.2 and 79.0±8.7 deg/s, with the time average in opening and closing stages of 0.11±0.02 and 0.15±0.01 s, respectively. The correlation coefficients between the requested position for the soil shield and the position created by the hydraulic actuator under laboratory conditions in both opening and closing states were R2 = 0.99 (RMSE = 0.7 deg). Under field conditions, the speed average of the soil shield reposition at three travel speeds of 2.6, 3.5, and 4.8 km/h in the opening stage were 97.7, 99.1, and 99.1 deg/s and in the closing stage were 77.3, 78.3, and 78.7 deg/s, respectively. The correlation between the requested position for the soil shield and the position created by the hydraulic actuator in both opening and closing states were R2 = 0.99 (RMSE = 1.2 deg) and R2=0.99 (RMES=1.3 deg), respectively. The soil shield repositioning system can be performed in less than 0.3 s in-field, making it an effective and practical tool for performing variable rate tillage.

Keywords

References

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Iranian Journal of Biosystems Engineering
Volume 53, Issue 2
September 2022
Pages 177-194

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History

  • Receive Date: 30 October 2021
  • Revise Date: 17 March 2022
  • Accept Date: 01 June 2022

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