Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors

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 f...

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Main Authors: Francesco Mocera, Valerio Martini, Aurelio Somà
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/5/1944
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author Francesco Mocera
Valerio Martini
Aurelio Somà
author_facet Francesco Mocera
Valerio Martini
Aurelio Somà
author_sort Francesco Mocera
collection DOAJ
description 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.
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spelling doaj.art-68eca22e394c4b02841fbe85c21e7d062023-11-23T22:59:46ZengMDPI AGEnergies1996-10732022-03-01155194410.3390/en15051944Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural TractorsFrancesco Mocera0Valerio Martini1Aurelio Somà2Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, ItalyIn 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.https://www.mdpi.com/1996-1073/15/5/1944tractorhybrid electric tractorelectric vehiclegreen technologyfuel efficiencysustainability
spellingShingle Francesco Mocera
Valerio Martini
Aurelio Somà
Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors
Energies
tractor
hybrid electric tractor
electric vehicle
green technology
fuel efficiency
sustainability
title Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors
title_full Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors
title_fullStr Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors
title_full_unstemmed Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors
title_short Comparative Analysis of Hybrid Electric Architectures for Specialized Agricultural Tractors
title_sort comparative analysis of hybrid electric architectures for specialized agricultural tractors
topic tractor
hybrid electric tractor
electric vehicle
green technology
fuel efficiency
sustainability
url https://www.mdpi.com/1996-1073/15/5/1944
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AT valeriomartini comparativeanalysisofhybridelectricarchitecturesforspecializedagriculturaltractors
AT aureliosoma comparativeanalysisofhybridelectricarchitecturesforspecializedagriculturaltractors