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Electro-Hydraulic Shuttle Transmission and Control for Tractors with Non-Electronic Engine
Technical Paper
2018-01-0390
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Recently, emerging technological developments in powertrain were mostly accompanied with electronics for efficient and precise control of various powertrain systems like engine, transmission, hydraulics, etc. Agricultural tractors are of no exception to this context. Most of the higher horsepower tractors above 50 HP are equipped with modern transmission systems such as Power-shuttle, Power-shift etc. having their wet clutch transmission and diesel engine controlled by an Electronic Control Unit. This is possible only with an engine that receives and provides electronic signals. Whereas a tractor with mechanical (non-electronic) engine is of predominant use in the Indian farm lands due to their low cost and immediate availability compared to that of an engine equipped with high-end electronics. Hence, there is a demand for low cost drivetrain with improved controls and without engine electronics. This research work depicts on one such development, where an effective power shuttle transmission system and controls were developed for a non-electronic engine tractor. The multi-plate wet clutch shuttle transmission is electro-hydraulically controlled, thus eliminates the operator fatigue due to frequent clutch pedal application with improved vehicle launch and smooth shuttle shift ability. This research work also address the safety features for protecting and increasing the life of system components like clutch slippage, energy dissipation, power consumption. Additional system protection was also done through fault mode diagnosis via safety features such as anti-stalling, speed cut off shuttling, wrong direction detection, etc with minimal sensors and powertrain components.
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Citation
Rajagopal, M. and M A, V., "Electro-Hydraulic Shuttle Transmission and Control for Tractors with Non-Electronic Engine," SAE Technical Paper 2018-01-0390, 2018, https://doi.org/10.4271/2018-01-0390.Also In
References
- Okamoto , M. , Kinoshita , M. , and Machida , S. The Kubota Power Synchroshift Transmission SAE Technical Paper 881288 1988 10.4271/881288
- McGlade , W. Off-Highway Power Transmission Systems SAE Technical Paper 630322 1963 10.4271/630322.
- Kitao , Y. , Inamori , A. , and Asada , A. Electro-Hydraulic Controlled Transmission for Mid Size Agricultural Tractors SAE Technical Paper 961766 1996 10.4271/961766
- Savaresi , S.M. , Tanelli , M. , Bittanti , S. , Mangili , A. et al. Control of Power-Shuttle Motion-Inverter Proceedings of the 2005, American Control Conference 2 1010 1015 2005 10.1109/ACC.2005.1470092
- Kim , D.C. , Kim , K.U. , Park , Y.J , Huh , J.Y. Journal of Terramechanics 44 1 111 122 2007 10.1016/j.jterra.2006.04.001
- Potter , J. , Marquart , G. , and Kass , J. Power Shifting Reverser and High-Low Units for John Deere Utility Tractors SAE Technical Paper 670734 1967 10.4271/670734
- Zhu , Z. , Gao , X. , Pan , D. , Yu , Z. et al. Study on the Control Strategy of Shifting Time Involving Multigroup Clutches Mathematical Problems in Engineering 2016 2 1 17 2016 10.1155/2016/9523251
- Panzani , G. , Tanelli , M. , Savaresi , S.M. , Pirola , C. et al Transmission Control for Power Shift Agricultural Tractors American Control Conference, 2010 Baltimore 2010