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Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors

Author

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  • Francesco Mocera

    (Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy)

  • Valerio Martini

    (Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy)

  • Aurelio Somà

    (Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy)

Abstract

In this work, a comparative numerical analysis between the performance of a conventional specialized orchard tractor and those of three different hybrid electric tractor configurations is presented. The aim was to compare several powertrain configurations in the same working scenarios derived from field measurements. Peak power capabilities and endurance were numerically tested with specific load scenarios involving both transportation mission profiles and field activities with external implements powered through the power take off of the tractor. The proposed hybrid architectures were configured with the same battery-based energy storage system to perform the comparison with the same energy storage capabilities. Two parallel, two series and one electro-hydraulic hybrid configuration were modeled and tested through simulations. The parallel ones excelled in peak power performance, whereas the series configurations had the highest fuel savings. The electro-hydraulic configuration was proposed as an alternative able to allow for a downsized engine but also for the introduction of the Continuously Variable Transmission (CVT) functionality, which is always an interesting feature for such working machines.

Suggested Citation

  • Francesco Mocera & Valerio Martini & Aurelio Somà, 2022. "Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors," Energies, MDPI, vol. 15(5), pages 1-22, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:5:p:1944-:d:765920
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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.
    2. Francesco Mocera & Aurelio Somà, 2020. "Analysis of a Parallel Hybrid Electric Tractor for Agricultural Applications," Energies, MDPI, vol. 13(12), pages 1-16, June.
    3. Mengnan Liu & Liyou Xu & Zhili Zhou, 2016. "Design of a Load Torque Based Control Strategy for Improving Electric Tractor Motor Energy Conversion Efficiency," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-14, April.
    4. Dimitrios P. Platis & Christos D. Anagnostopoulos & Aggeliki D. Tsaboula & Georgios C. Menexes & Kiriaki L. Kalburtji & Andreas P. Mamolos, 2019. "Energy Analysis, and Carbon and Water Footprint for Environmentally Friendly Farming Practices in Agroecosystems and Agroforestry," Sustainability, MDPI, vol. 11(6), pages 1-11, March.
    5. Seung-Yun Baek & Yeon-Soo Kim & Wan-Soo Kim & Seung-Min Baek & Yong-Joo Kim, 2020. "Development and Verification of a Simulation Model for 120 kW Class Electric AWD (All-Wheel-Drive) Tractor during Driving Operation," Energies, MDPI, vol. 13(10), pages 1-15, May.
    6. Diju Gao & Wei Zhang & Aidi Shen & Yide Wang, 2017. "Parameter Design and Energy Control of the Power Train in a Hybrid Electric Boat," Energies, MDPI, vol. 10(7), pages 1-12, July.
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    1. Salvatore Martelli & Francesco Mocera & Aurelio Somà, 2023. "Carbon Footprint of an Orchard Tractor through a Life-Cycle Assessment Approach," Agriculture, MDPI, vol. 13(6), pages 1-22, June.
    2. Ugnė Koletė Medževeprytė & Rolandas Makaras & Vaidas Lukoševičius & Sigitas Kilikevičius, 2023. "Application and Efficiency of a Series-Hybrid Drive for Agricultural Use Based on a Modified Version of the World Harmonized Transient Cycle," Energies, MDPI, vol. 16(14), pages 1-16, July.
    3. Valerio Martini & Francesco Mocera & Aurelio Somà, 2022. "Numerical Investigation of a Fuel Cell-Powered Agricultural Tractor," Energies, MDPI, vol. 15(23), pages 1-19, November.
    4. 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.

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