Comparing the Sustainability of Different Powertrains for Urban Use
ELECTRONICS(2023)
摘要
The real environment impacts the fuel and energy consumption of any vehicle: technology, physical and social phenomena, traffic, drivers' behaviour, and so on; many of them are difficult to quantify. The authors' methodology was used to test the real impact of vehicles in "standard" urban conditions, and many generations of hybrid powertrains are compared. One of the latest performance indexes is the percentage of time the vehicle runs with zero emissions (ZEV). For example, the hybrid vehicle tested ran up to 80% with no emissions and fuel consumption below 3 L per 100 km. A few energy performance indicators were compared between five vehicles: one battery electric vehicle (BEV), two hybrid gasoline-electric vehicles (HEVs), and two traditional vehicles (one diesel and one gasoline). Their potential to use only renewable energy is unrivalled, but today's vehicles' performances favour hybrid power trains. This paper summarises the most sustainable powertrain for urban use by comparing experimental data from on-road testing. It also evaluates the benefits of reducing emissions by forecasting the Italian car fleet of 2025 and three use cases of the evolution of car fleets, with a focus on Rome.
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关键词
hybrid,electric,sustainability,car fleet forecasting,well to wheel
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