Authors

T. Lüdiger, S. Dünnwald, M. Thewes, J. Nowack, R. Savelsberg, M. Stapelbroek, M. Rudolph, T. Körfer, A. Balazs, L. Virnich, M. Wittler, FEV, Aachen

Year

2026

Print Info

Production/Publication ÖVK

Summary

Decarbonizing heavy-duty road freight requires high asset utilization while charging infrastructure, grid connections, and policy boundary conditions continue to evolve. Battery-electric vehicles (BEVs) are the preferred solution when reliable depot or corridor charging is available, but uneven rollout can limit long-haul feasibility. This creates a practical transition window in which BEV-derived range-extended electric
vehicles (REEVs) can preserve electric traction while hedging range and uptime through an on-board generator when charging availability is incomplete. Using a representative 40t tractor–trailer and long-haul and regional missions, this paper compares REEV concepts against BEVs and plug-in hybrid electric vehicles (PHEVs). The assessment applies regulatory-relevant utility-factor logic combining chargedepleting
and charge-sustaining operation and complements it with TTW/WTW energy and CO₂ perspectives. While the analysis is framed by European Union (EU) boundary conditions, the evaluation logic is transferable to other regions if those boundary conditions are adapted. Beyond the comparison results, the paper consolidates the decision-relevant technical enablers, challenges, and future solution directions for HDREEV
series implementation, including battery right-sizing, 400/800 V and Si/SiC power electronics choices, continuous-duty generator operation, system integration including charging interfaces, and predictive energy management. Outcomes remain sensitive to energy prices, charging conditions, and regulatory or toll parameters.

ISBN

978-3-9504969-5-6

DOI

https://doi.org/10.62626/4rmm-fkgd Copy link

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