드라이브 ㆍ 컨트롤 (Journal of Drive and Control)

  • 제15권3호
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  • Pages.36-42
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  • 2018
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  • 2671-7972(pISSN)
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  • 2671-7980(eISSN)
유공압건설기계학회 (The Korean Society for Fluid Power and Construction Equipment)
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SimulationX를 이용한 트랙터 PST 변속 충격 최소화 연구

Minimization of Shifting Shock of Tractor PST using SimulationX

  • Eom, Tae Ho (Department of Construction Machinery Engineering, Inha University) ;
  • Lee, Chul-Hee (Department of Mechanical Engineering, Inha University)
  • 투고 : 2017.12.22
  • 심사 : 2018.08.17
  • 발행 : 2018.09.01
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초록

Agricultural tractors require frequent shifting to improve operation efficiency, and PST (Powershift Transmission) is considered as a suitable transmission. However, due to the inherent characteristics of the PST, shocks arise during shifting, which imparts a negative effect on the operator. Therefore, in order to improve the transmission performance of the tractor PST, researches on various methods including the hydraulic system circuit, the engine input speed control, and the mechanical system of the transmission are steadily being conducted. In this study, in order to reduce the impact of PST on a shift based on SimulationX software, we analyzed the characteristics of the input signal of PCV (Pressure Control Valve) through sensitivity analysis and verified the simulation model through actual vehicle test. Optimization was performed for minimizing the shift shock for some of the parameters of the input signal at constant temperature and RPM conditions.

키워드

참고문헌

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피인용 문헌

  1. Simulation of Design Factors of a Clutch Pack for Power-Shift Transmission for an Agricultural Tractor vol.20, pp.24, 2018, https://doi.org/10.3390/s20247293