| A New Equation for Fuel Economy of Internal Combustion Engine Vehicles in Republic of Korea Based on 5-Cycle Test
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| Mansu Noh 1, JungMo Lee 1, Dongyun Lim 1, Jin Han Ahn 1, Kibum Kim 2 |
1Vehicle Energy Effi ciency Center, Korea Energy Agency
2School of Mechanical Engineering , Chungbuk National University |
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| ABSTRACT |
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The vehicle fuel economy rating system in South Korea has adopted the US 5-cycle fuel economy system since 2012 to provide consumers with comprehensive information. However, due to resource constraints, derived 5-cycle equations have been utilized to approximate 5-cycle test results using the 2-cycle test. This study examines the accuracy of derived 5-cycle fuel economy equations for 20 recent vehicle models in Korea and updates them based on the correlation between 5-cycle and 2-cycle fuel consumption. The updated equations are expected to refine fuel economy ratings for up to three models, ensuring the label's reliability.
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| Key Words:
5-cycle fuel economy, Derived 5-cycle fuel economy, Fuel economy label, Conventional internal combustion engine vehicle, Automotive Engineering
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Corresponding Author.
Kibum Kim , Email. 
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