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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on as a courtesy and upon agreement with AVERE.
Open AccessArticle

Fuel Efficiency Benefit for Electrified Vehicles from Advanced Spark-ignition Engine Technologies

Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL, USA
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2013, 6(1), 21-29;
Published: 29 March 2013
PDF [788 KB, uploaded 17 May 2018]


Worldwide fuel consumption regulations are becoming more and more stringent. As a result, car companies are looking at a wide portfolio of component technologies, including engines, transmissions, and electrification. This study examined fuel consumption reductions offered by a collection of advanced spark-ignition (SI) engine technologies using full-vehicle simulations. High-fidelity engine models were developed to simulate Variable Valve Lift (VVL), Turbocharging and Downsizing (T), and Gasoline Direct Injection (DI) technologies in an incremental manner through an accumulative technology pathway. Measurements from these models were used to build full-vehicle simulations for each of the technologies across a spectrum of vehicle powertrain configurations with increased electrification. Each vehicle component was algorithmically sized to meet common performance criteria to ensure uniformity and comparability. The effects of vehicle hybridization and electrification on the technology fuel reductions while transitioning from conventional to mild, full, and plug-in hybrid configurations were investigated. Conventional vehicles were found to attain the highest overall benefits, while mild and full hybrid vehicles attained lower benefits. A negative correlation was found between engine technology benefit and vehicle hybridization. Over the pathway, cycles, and configurations investigated, average benefits for DI were found to be 8.0%; VVL, 3.4%; Turbocharging and downsizing, 9.7%; and downsizing from 1.6 L to 1.2 L, 2.7%.
Keywords: Modelling; Simulation; Efficiency; ICE (Internal Combustion Engine); HEV (Hybrid Electric Vehicle) Modelling; Simulation; Efficiency; ICE (Internal Combustion Engine); HEV (Hybrid Electric Vehicle)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Walton, B.; Rousseau, A. Fuel Efficiency Benefit for Electrified Vehicles from Advanced Spark-ignition Engine Technologies. World Electr. Veh. J. 2013, 6, 21-29.

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World Electr. Veh. J. EISSN 2032-6653 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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