Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Development of HST electronic control system for combine (II)- Outdoor tests for control Characteristics -

콤바인 HST 전자제어시스템 개발- 제어특성 실외시험 -

  • Seo, Sin-Won (Dept. of the Bioindustrial Machinery, Chungnam National University) ;
  • Huh, Yun-Kun (Dept. of the Bioindustrial Machinery, Chungnam National University) ;
  • Lee, Je-Yong (Dept. of the Research Institute, Mido Tech Ltd.) ;
  • Lee, Chang-Kyu (Dept. of the Research Institute, LSmtron Co. Ltd.) ;
  • Bae, Keun-Soo (Dept. of the Bioindustrial Machinery, Chungnam National University)
  • 서신원 (충남대학교 생물산업기계전공) ;
  • 허윤근 (충남대학교 생물산업기계전공) ;
  • 이제용 ((주)미도테크 연구소) ;
  • 이창규 ((주)LS엠트론 연구소) ;
  • 배근수 (충남대학교 생물산업기계전공)
  • Received : 2011.01.05
  • Accepted : 2011.03.09
  • Published : 2011.03.30
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Abstract

I/An electro-hydraulic transmission having advantages of convenience, safety, simple linking and high power, and an electronic control system were designed and fabricated. In this study, characteristics of the control system were investigated through outdoor tests for evaluation of installation of the system on a combine. Major findings were as followings. 1. Experiment for performance evaluation of the control system was conducted on concrete road. With steering lever in neutral position, driving HST swash plate and left/right wheel speed increased in proportion to driving lever angle. In case of steering control, steering swash plate angle changed in proportion to steering lever angle. This should cause increase in outer wheel speed, but it was observed that HST swash plate was controlled toward neutral to maintain the speed before steering. As a result, speed before steering was maintained despite the change in outer wheel speed by steering HST swash plate angle change. 2. It was observed that the HST system enabled steering with outer wheel maintained at constant speeds while inner wheel speed decreased, which was more stable than conventional mechanical links. In addition, for the selected 5 criteria, experiment showed satisfactory results and it was judged that installation on real vehicle would be feasible. 3. The control system showed response property of appropriate forward/reverse movement and lift/right steering, without causing any problems during experiment on concrete. Result of response property experiment on field operation also showed appropriate control over forward/reverse movement and left/right steering.

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References

  1. Rural Development Administration. 2009. Agricultural machinery demand forecast and trends.
  2. Kim SJ, Jin JH, Chung SJ, Pyo JH, Song JG. 2006. A study on development of actuator for active front steering. Spring Conf. Proc. 2: 728-733. Korea Society of Automotive Engineers.
  3. Kim TG, Son SJ, Ryoo YJ, Kim ES, Lim YC. 2001. Steering control for autonomous electric vehicle using magnetic fields. Journal of the Korean Sensors Society 10(2): 134-141.
  4. Pang DY, Lee SC. 2004. Handle torque response and PD control with road wheel impulse input of column drive electric power steering system. Journal of Engineering Research 35: 141-147.
  5. Kitano M, Jyozaki H. 1975. Transac study on steerability of tracked vehicles (Part 1) -Track skid and turning radiustions. Transactions of the Society of Automative Engineers of Japan 1(9): 51-57.
  6. Kitano M, Kuma M, Kinou A. 1975. Transac study on steerability of tracked vehicles (Part 2) -Effects of center of gravity on steerability spelling. Transactions of the Society of Automative Engineers of Japan 2(10): 54-60.
  7. Sunwoo MH, Lee YK, Lee JI. 1998. A study on the development of an electronic control unit and the fault detection algorithm for a motor driven steering column. Proceedings of the KIEE Fall Annual Conference 2: 448-450.
  8. Hidaka S. 2002. Development of forced differential steering control system. Journal of the Japanese Society of Agricultural Machinery 64(2): 111-116.
  9. Wong JY. 1984. An introduction to terramechanics. Journal of Terramechanics 21(1): 5-17. https://doi.org/10.1016/0022-4898(84)90004-1
  10. Wong JY. 1986. Computer aided analysis of the effects of design parameters on the performance of tracked vehicles. Journal of Terramechanics 23(2): 95-124. https://doi.org/10.1016/0022-4898(86)90017-0
  11. Seo SW. 2010. Development of HST electronic control system for combine (Ι). CNU Journal of Agricultural Science 37(2): 295-302.