Heavy Multi-Articulated Vehicles with Electric and Hybrid Power Trains for Road Freight Activity: An Australian Context

Joshua Allwright, Akhlaqur Rahman (), Marcus Coleman and Ambarish Kulkarni
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Joshua Allwright: School of Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
Akhlaqur Rahman: School of Industrial Automation, Engineering Institute of Technology, Melbourne, VIC 3000, Australia
Marcus Coleman: Tiger Spider, St. Kilda, VIC 3182, Australia
Ambarish Kulkarni: School of Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia

Energies, 2022, vol. 15, issue 17, 1-19

Abstract: The electrification of vehicles from the automotive and public transport industries can reduce harmful emissions if implemented correctly, but there is little evidence of whether the electrification of heavy freight transportation vehicles (HFTVs), such as multi-articulated vehicles, used in the freight industry could see the same benefits. This work studied heavy multi-articulated freight vehicles and developed a comparative analysis between electric and conventional diesel power trains to reduce their total emissions. Real-world drive cycle data were obtained from a heavy multi-articulated freight vehicle operating around Melbourne, Australia, with a gross combination mass (GCM) of up to 66,000 kg. Numerical models of the case study freight vehicle were then simulated with diesel, through-the-road parallel (TTRP) hybrid and electric power trains over the five different drive cycles with fuel and energy consumption results quantified. Battery weights were added on top of the real-world operating GCMs to assure the operational payload did not have to be reduced to accommodate the addition of electric power trains. The fuel and energy consumptions were then used to estimate the real-world emissions and compared. The results showed a positive reduction in tailpipe emissions, but total greenhouse emission was worse for operation in Melbourne if batteries were charged off the grid. However, if Melbourne can move towards more renewable energy and change its emission factor for generating electricity down to 0.49 kg CO 2-e /kWh, a strong decarbonization could be possible for the Australian road freight industry and could help meet emission reduction targets set out in the 2015 Paris Agreement.

Keywords: electric vehicles; electric power trains; heavy multi-articulated vehicles; energy demand; Australian road freight industry; CO 2 emissions; fuel economy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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