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Energy Saving Performance of Agricultural Tractor Equipped with Mechanic-Electronic-Hydraulic Powertrain System

Author

Listed:
  • Zhen Zhu

    (Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

  • Yanpeng Yang

    (State Key Laboratory of Power System of Tractor, Luoyang 471039, China)

  • Dongqing Wang

    (State Key Laboratory of Power System of Tractor, Luoyang 471039, China)

  • Yingfeng Cai

    (Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

  • Longhui Lai

    (Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

Abstract

Tractors are usually applied in field operations, road transport, and other operations. Modern agriculture has higher design requirements for tractor powertrains due to the complicated working environments and various operations. To meet the driving requirements of the tractor under multiple operations, a mechanic-electronic-hydraulic powertrain system (MEH-PS) for tractors has been designed according to the characteristics of the hydro-mechanical composite transmission and electromechanical hybrid system. The principle of multiple driven and transmission modes of MEH-PS are introduced, the speed regulation characteristic curve of hydro-mechanical transmission (HMT) is given, and the related power element model, tractor model, and efficiency model are established. The HMT optimal economy transmission ratio control strategy and hybrid rule-based optimization energy management strategy were developed. Take three typical tractor operations for analysis: ploughing, harvesting, and transport. The results show that the engine operating points are mainly distributed in the higher load area, the tractor maintains high system efficiency, and the relative error between simulated and tested fuel consumption is within 5%, which further proves the reliability of the model. The solution also showed lower fuel consumption in all three operations compared to DLG’s announced PowerShift tractors and CVT tractors. Thus, the powertrain system can meet the tractor’s drive requirements under complex operating conditions and maintain high efficiency and is therefore suitable for tractors that need to operate frequently in the field and on the road.

Suggested Citation

  • Zhen Zhu & Yanpeng Yang & Dongqing Wang & Yingfeng Cai & Longhui Lai, 2022. "Energy Saving Performance of Agricultural Tractor Equipped with Mechanic-Electronic-Hydraulic Powertrain System," Agriculture, MDPI, vol. 12(3), pages 1-22, March.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:3:p:436-:d:776189
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    References listed on IDEAS

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    1. Claudio Rossi & Davide Pontara & Carlo Falcomer & Marco Bertoldi & Riccardo Mandrioli, 2021. "A Hybrid–Electric Driveline for Agricultural Tractors Based on an e-CVT Power-Split Transmission," Energies, MDPI, vol. 14(21), pages 1-23, October.
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    5. Li, Xianzhe & Liu, Mengnan & Hu, Chenming & Yan, Xianghai & Zhao, Sixia & Zhang, Mingzhu & Xu, Liyou, 2024. "Parameters collaborative optimization design and innovation verification approach for fuel cell distributed drive electric tractor," Energy, Elsevier, vol. 292(C).
    6. Zifeng Pei & Li Zhang & Haijun Fu & Yucheng Wang, 2025. "New Fault-Tolerant Sensorless Control of FPFTPM Motor Based on Hybrid Adaptive Robust Observation for Electric Agricultural Equipment Applications," Energies, MDPI, vol. 18(8), pages 1-22, April.
    7. Yifan Zhao & Liyou Xu & Chenhui Zhao & Haigang Xu & Xianghai Yan, 2024. "Research on Energy Management Strategy for Hybrid Tractors Based on DP-MPC," Energies, MDPI, vol. 17(16), pages 1-22, August.
    8. Shuai Zhang & Weizhen Wei & Xiaoliang Chen & Liyou Xu & Yuntao Cao, 2022. "Vibration Performance Analysis and Multi-Objective Optimization Design of a Tractor Scissor Seat Suspension System," Agriculture, MDPI, vol. 13(1), pages 1-28, December.
    9. Zhang, Junjiang & Shi, Mingyue & Liu, Mengnan & Wang, Dongqing & Yan, Xianghai & Xu, Liyou & Wu, Yiwei, 2025. "Design method of dual-motor electric tractor drive system based on mass constraint algorithm under uncertainty using mass," Energy, Elsevier, vol. 322(C).
    10. Weijian Liu & Xiwen Luo & Shan Zeng & Li Zeng & Zhiqiang Wen, 2022. "The Design and Test of the Chassis of a Triangular Crawler-Type Ratooning Rice Harvester," Agriculture, MDPI, vol. 12(6), pages 1-17, June.
    11. Ya Li & Xiaohan Chen & Xiaorong Han & Ning Xu & Zhiqiang Zhai & Kai Lu & Youfeng Zhu & Guangming Wang, 2024. "Application of Computer Simulation Technology in the Development of Tractor Transmission Systems," Agriculture, MDPI, vol. 14(9), pages 1-34, September.
    12. Ruochen Wang & Kaiqiang Zhang & Renkai Ding & Yu Jiang & Yiyong Jiang, 2025. "A Novel Hydraulic Interconnection Design and Sliding Mode Synchronization Control of Leveling System for Crawler Work Machine," Agriculture, MDPI, vol. 15(2), pages 1-19, January.
    13. Ganghui Feng & Junjiang Zhang & Xianghai Yan & Chunhong Dong & Mengnan Liu & Liyou Xu, 2024. "Research on energy-saving control of agricultural hybrid tractors integrating working condition prediction," PLOS ONE, Public Library of Science, vol. 19(3), pages 1-26, March.
    14. Zhengkai Wu & Jiazhong Wang & Yazhou Xing & Shanshan Li & Jinggang Yi & Chunming Zhao, 2023. "Energy Management of Sowing Unit for Extended-Range Electric Tractor Based on Improved CD-CS Fuzzy Rules," Agriculture, MDPI, vol. 13(7), pages 1-18, June.
    15. Chengliang Zhang & Changpu Li & Chunzhao Zhao & Lei Li & Guanlei Gao & Xiyuan Chen, 2022. "Design of Hydrostatic Chassis Drive System for Large Plant Protection Machine," Agriculture, MDPI, vol. 12(8), pages 1-16, July.

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