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Energy Assessment of Different Powertrain Options for Heavy-Duty Vehicles and Energy Implications of Autonomous Driving

Author

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  • Sebastian Sigle

    (German Aerospace Center (DLR), Institute of Vehicle Concepts, 70569 Stuttgart, Germany)

  • Robert Hahn

    (German Aerospace Center (DLR), Institute of Vehicle Concepts, 70569 Stuttgart, Germany)

Abstract

Heavy-duty vehicles (HDVs) are responsible for a significant amount of CO 2 emissions in the transport sector. The share of these vehicles is still increasing in the European Union (EU); nevertheless, rigorous CO 2 emission reduction schemes will apply in the near future. Different measures to decrease CO 2 emissions are being already discussed, e.g., the electrification of the powertrain. Additionally, the impact of autonomous driving on energy consumption is being investigated. The most common types are fuel cell vehicles (FCEVs) and battery-only vehicles (BEVs). It is still unclear which type of powertrain will prevail in the future. Therefore, we developed a method to compare different powertrain options based on different scenarios in terms of primary energy consumption, CO 2 emissions, and fuel costs. We compared the results with the internal combustion engine vehicle (ICEV). The model includes a model for the climatization of the driver’s cabin, which we used to investigate the impact of autonomous driving on energy consumption. It became clear that certain powertrains offer advantages for certain applications and that sensitivities exist with regard to primary energy and CO 2 emissions. Overall, it became clear that electrified powertrains could reduce the CO 2 emissions and the primary energy consumption of HDVs. Moreover, autonomous vehicles can save energy in most cases.

Suggested Citation

  • Sebastian Sigle & Robert Hahn, 2023. "Energy Assessment of Different Powertrain Options for Heavy-Duty Vehicles and Energy Implications of Autonomous Driving," Energies, MDPI, vol. 16(18), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:18:p:6512-:d:1236580
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    References listed on IDEAS

    as
    1. Fontaras, Georgios & Grigoratos, Theodoros & Savvidis, Dimitrios & Anagnostopoulos, Konstantinos & Luz, Raphael & Rexeis, Martin & Hausberger, Stefan, 2016. "An experimental evaluation of the methodology proposed for the monitoring and certification of CO2 emissions from heavy-duty vehicles in Europe," Energy, Elsevier, vol. 102(C), pages 354-364.
    2. Carlo Cunanan & Manh-Kien Tran & Youngwoo Lee & Shinghei Kwok & Vincent Leung & Michael Fowler, 2021. "A Review of Heavy-Duty Vehicle Powertrain Technologies: Diesel Engine Vehicles, Battery Electric Vehicles, and Hydrogen Fuel Cell Electric Vehicles," Clean Technol., MDPI, vol. 3(2), pages 1-16, June.
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    Cited by:

    1. Dilshad Mohammed & Balázs Horváth, 2024. "Assessing the Paradox of Autonomous Vehicles: Promised Fuel Efficiency vs. Aggregate Fuel Consumption," Energies, MDPI, vol. 17(7), pages 1-19, March.

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