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2025 Vol.52, Issue 4 Preview Page

Engineering

Development and verification of a simulation model for the power transmission system of a 20 kW electric tractor
Dong Wook Kim1
,
Ji Hun Yu1
,
Min Jong Park2
,
Jong Dae Park2*
,
Yong Joo Kim234*
1Department of Tractor R&D Center, LS Mtron, Wanju 55322, Korea
2Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Korea
3Department of Smart Agriculture Systems Machinery Engineering, Chungnam National University, Daejeon 34134, Korea
4Eco-Friendly Hydrogen Electric Tractor & Agricultural Machinery Institute, Chungnam National University, Daejeon 34134, Korea
*Corresponding Author
1 December 2025. pp. 471-480
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Abstract

This study aimed to verify the agricultural working performance of an electric tractor by developing a 1-D power transmission system simulation model using SimulationX (ver. 4.4, ESI ITI GmbH, Germany). A load measurement system was installed on the electric tractor to measure real-time data during plow tillage, including axle torque and the state of charge (SOC) level of the battery. The t-tests were conducted to compare the measured and simulated axle torques and validated the simulation model. The p-values for the front and rear axles were 0.18 and 0.19, respectively, indicating no statistically significant differences. Although the measured and simulated SOC did not perfectly match, the trends showed similar patterns. The divergences in SOC were mainly due to the resolution limitations of the SOC sensor during measurement. Based on both measured and simulated results, the estimated workable time for plow tillage using the electric tractor was approximately 2 hours.

Keywords
electric tractor
load measurement system
plow tillage
power transmission system
SOC level
References
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Information
  • Publisher :Institute of Agricultural Science, Chungnam National University
  • Publisher(Ko) :충남대학교 농업과학연구소
  • Journal Title :Korean Journal of Agricultural Science
  • Journal Title(Ko) :농업과학연구
  • Volume : 52
  • No :4
  • Pages :471-480
  • Received Date : 2025-08-05
  • Revised Date : 2025-08-20
  • Accepted Date : 2025-09-01
  • DOI :https://doi.org/10.7744/kjoas.520406
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