Light duty vehicle fuel economy – Comparison of ice, hybrid and electric vehicles based on different driving cycles

Melo, Tadeu Cavalcante Cordeiro de; Botero, Sergio William; Carvalho, Ricardo César Tavares; Villela, Antonio Carlos Scardini; Machado, Guilherme Bastos; Pontes, Amanda Moreira Moraes Ribeiro

doi:10.4271/2018-36-0035

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…As of 1 September 2017, it superseded the NEDC (New European Driving Cycle) light-duty vehicle homologation procedure for type approval tests, and on 1 September 2018, it applied to all new vehicles. Ever since, all new vehicles launched into the European market must be homologated according to the WLTC test procedure [4,5].…”

Section: Review Of the Passenger Vehicle Exhaust Emission Road Testsmentioning

confidence: 99%

Exhaust Emissions and Energy Consumption Analysis of Conventional, Hybrid, and Electric Vehicles in Real Driving Cycles

2020

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One of the environmental aims of the European Union is to achieve climate neutrality by 2050. According to European Parliament data, transport emissions accounted for about 25% of global carbon dioxide emissions in 2016, in which road transport had the largest share (approximately 72%). This phenomenon is particularly visible in urban agglomerations. The solution examples are the popularization of hybrid vehicles and the development of electromobility. The aim of this paper is an assessment of the energy consumption and exhaust emissions from passenger cars fitted with different powertrains in actual operation. For the tests, passenger cars with conventional engines of various emission classes were used as well as the latest hybrid vehicles and an electric car. It enabled a comparative assessment of the energy consumption under different traffic conditions, with particular emphasis on the urban phase and the entire RDE (Real Driving Emissions) test. The results were analyzed to identify changes in these environmental factors that have occurred with the technical advancement of vehicles. The lowest total energy consumption in real traffic conditions is characteristic of an electric vehicle; the plug-in hybrid vehicle with a gasoline engine is about 10% bigger, and the largest one is a combustion vehicle (30% bigger than an electric vehicle). These data may contribute to the classification of vehicles and identification of advantages of the latest developments in conventional, hybrid, and electric vehicles.

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Section: Review Of the Passenger Vehicle Exhaust Emission Road Testsmentioning

confidence: 99%

Exhaust Emissions and Energy Consumption Analysis of Conventional, Hybrid, and Electric Vehicles in Real Driving Cycles

2020

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“…Melo et al [9] compared the fuel consumptions for three types of driving cycles for internal combustion engines, hybrid electric vehicles (HEVs), and electric vehicle (EVs). They described the difference in the fuel consumption between NEDC and WLTC as approximately 9.5-13.5% for internal combustion engines.…”

Section: Introductionmentioning

confidence: 99%

Comparative Evaluation of the Effect of Vehicle Parameters on Fuel Consumption under NEDC and WLTP

Lee

2020

Energies

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Higher speeds, faster acceleration and longer duration need a more realistic driving cycle. As a result, a new test procedure that reflects real-world driving conditions has been applied since 2017, and the previous development environment optimized for NEDC has also changed. In this study, several factors and technologies relating to fuel consumption, such as vehicle weight, tire rolling resistance, drag of aerodynamic, stop–start, and 48 V mild hybrid system, are evaluated as per the new worldwide harmonized light vehicles test procedure (WLTP) and compared with that of the previous European driving cycle (NEDC). The impact of the vehicle weight is increased in case of the WLTP due to faster acceleration compared to that under NEDC. The influence of aerodynamic force is very important as the average and maximum speed are increased. Meanwhile, the impact of idle stop–start technology is lower compared to that under NEDC due to the reduction in idle operation time. The 48-V mild hybrid system is still expected to play a role as a powerful fuel consumption reduction technology under new WLTP by applying energy regeneration, minor torque assist, and extended idle stop–start.

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Comparison between the WLTC and the FTP-75 driving cycles applied to a 1.4 L light-duty vehicle running on ethanol

Mazer

Hatschbach

Santos

et al. 2020

SAE Technical Paper Series

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Light duty vehicle fuel economy – Comparison of ice, hybrid and electric vehicles based on different driving cycles

Cited by 3 publications

References 5 publications

Exhaust Emissions and Energy Consumption Analysis of Conventional, Hybrid, and Electric Vehicles in Real Driving Cycles

Exhaust Emissions and Energy Consumption Analysis of Conventional, Hybrid, and Electric Vehicles in Real Driving Cycles

Comparative Evaluation of the Effect of Vehicle Parameters on Fuel Consumption under NEDC and WLTP

Comparison between the WLTC and the FTP-75 driving cycles applied to a 1.4 L light-duty vehicle running on ethanol

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