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Motor Torque Distribution Strategy for Different Tillage Modes of Agricultural Electric Tractors

Author

Listed:
  • Yao Yu

    (Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China)

  • Shuaihua Hao

    (Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China)

  • Songbao Guo

    (Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China)

  • Zhong Tang

    (Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China)

  • Shuren Chen

    (Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China)

Abstract

Aiming at the existing single-motor agricultural tractors, which often have a mismatch between power and working conditions and a poor operation effect under different tillage modes, this paper designs a torque allocation strategy for agricultural electric tractors under different tillage modes. Firstly, the torque is divided into basic and compensating, and a calculation model is established. Then, the Particle Swarm Optimization algorithm is used to find the optimal demand torque position, and fuzzy control rules allocate the motor torque in combination with the battery SOC. Finally, the strategy’s effectiveness in different tillage modes is verified by MATLAB/Simulink simulation and bench test. The test results show that the strategy can distribute the motor torque stably according to the load torque change and pedal opening under three PTO transitions and the plowing and rotary tillage modes. The main and speed control motors respond in about 3 s with good real-time performance. The drive wheel torque can reach 1600 N·m during plowing and rotating operation. The PTO torque can reach 60 N·m during the rotating process. The maximum torque of the output shaft can reach 150 N·m with good plowing performance. During all operations, the SOC of the battery shows a steady linear decrease, and the battery discharge has stability.

Suggested Citation

  • Yao Yu & Shuaihua Hao & Songbao Guo & Zhong Tang & Shuren Chen, 2022. "Motor Torque Distribution Strategy for Different Tillage Modes of Agricultural Electric Tractors," Agriculture, MDPI, vol. 12(9), pages 1-22, September.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:9:p:1373-:d:905295
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    References listed on IDEAS

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    1. Wen, Chang-kai & Zhang, Sheng-li & Xie, Bin & Song, Zheng-he & Li, Tong-hui & Jia, Fang & Han, Jian-gang, 2022. "Design and verification innovative approach of dual-motor power coupling drive systems for electric tractors," Energy, Elsevier, vol. 247(C).
    2. Yu Wang & Ling Wang & Jianhua Zong & Dongxiao Lv & Shumao Wang, 2021. "Research on Loading Method of Tractor PTO Based on Dynamic Load Spectrum," Agriculture, MDPI, vol. 11(10), pages 1-14, October.
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    Cited by:

    1. Francesco Mocera & Aurelio Somà & Salvatore Martelli & Valerio Martini, 2023. "Trends and Future Perspective of Electrification in Agricultural Tractor-Implement Applications," Energies, MDPI, vol. 16(18), pages 1-36, September.
    2. 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.

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