Energy Flow of a Plug-In Electric Vehicle under the New European Driving Cycle
Publication: Journal of Energy Engineering
Volume 147, Issue 6
Abstract
In order to obtain comprehensive fuel consumption of parts and systems in the energy transmitting process of plug-in hybrid electric vehicles, this work carried out an experimental study on energy flow of vehicles and made a comparison of vehicle performance and efficiency under different start states and state of charge (SOC) levels. The results show that the SOC has a major influence on equivalent fuel consumption against the way a vehicle starts, including cold and hot starts when the high-voltage battery has a low SOC level. Conversely, the start method plays a more important role in fuel efficiency for vehicles with high SOCs. In addition, the efficiency of engine and electric networks was also investigated. The results suggest that the highest brake thermal efficiency of 36% occurs when the vehicle is at a hot start and low SOC. This low SOC must be higher than the minimum limit. Also, motor efficiency increases with the increase of the SOC.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
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Published In
Journal of Energy Engineering
Volume 147 • Issue 6 • December 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Nov 17, 2020
Accepted: Apr 19, 2021
Published online: Sep 22, 2021
Published in print: Dec 1, 2021
Discussion open until: Feb 22, 2022
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