The paper analyzes four recent major studies to assess advanced technology vehicles. These analyses differ greatly concerning their perception of the energy benefits of advanced technology vehicles, leading to great uncertainties in estimating full-fuel-cycle (or 'well-to-wheel') greenhouse gas (GHG) emission reduction potentials and/or fuel feedstock requirements per mile of service. Advanced vehicles include, but are not limited to, advanced gasoline and diesel internal combustion engine (ICE) vehicles, hybrid electric vehicles (HEVs) with gasoline, diesel, and compressed natural gas (CNG) ICEs, and various kinds of fuel-cell based vehicles (FCVs), such as direct hydrogen FCVs and gasoline or methanol fuelbased FCVs. The focus is on variations in estimates of vehicle gasoline-equivalent fuel energy use, glider and powertrain masses, and the powertrain effectiveness as a new surrogate measure for tank-towheel vehicle efficiency is introduced. It is concluded that, while the degree of uncertainty across studies is considerable, it is not as great as a summary investigation and direct comparison implies. The investigation suggests that there are logical and systematic reasons for variations among the studies. Further studies are required to improve both assessment and understanding of technical potentials of these advanced technologies, and to narrow the range of uncertainty currently present.
Assessing tank-to wheel efficiencies of advanced technology vehicles
Bewertung der Tank-Rad-Effizienz von Fahrzeugen mit fortgeschrittener Antriebstechnik
2003
19 Seiten, 11 Bilder, 11 Tabellen, 20 Quellen
Conference paper
English
Assessing Tank-to-Wheel Efficiencies of Advanced Technology Vehicles
SAE Technical Papers | 2003
|Assessing tank-to-wheel efficiencies of advanced technology vehicles
Automotive engineering | 2003
|2003-01-0412 Assessing Tank-to-Wheel Efficiencies of Advanced Technology Vehicles
British Library Conference Proceedings | 2003
|2003-01-0412 Assessing Tank-to-Wheel Efficiencies of Advanced Technology Vehicles
British Library Conference Proceedings | 2003
|Tank-to-wheel preliminary assessment of advanced powertrain and alternative fuel vehicles for China
Automotive engineering | 2007
|