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International Journal of Automotive Technology > Volume 25(1); 2024 > Article
International Journal of Automotive Technology 2024;25(1): 1-12.
doi: https://doi.org/10.1007/s12239-024-00001-1
Reduction in Chassis Dynamometer Test Time for Evaluating Energy Economy and Range of Light-Duty Battery Electric Vehicles
Man Su Noh 1, Da Eun Kim 1, Jin Han Ahn 1, Ki Bum Kim 2
1Vehicle Energy Effi ciency Center , Korea Energy Agency
2School of Mechanical Engineering , Chungbuk National University
PDF Links Corresponding Author.  Ki Bum Kim  , Email. kimkb11@chungbuk.ac.kr
ABSTRACT
In response to the climate crisis, nations are working to reduce emissions and improve energy effi ciency, particularly in the transportation sector through the adoption of electric vehicles. However, the current offi cial test methods for evaluating battery electric vehicle (BEV) energy economy and single-charge driving range are time-consuming, creating challenges for testing institutions and delaying the release of new models. The objective of this study is to compare the energy economy and single-charge driving range of BEVs using the diff erent test methods, the full depleting test (e.g., multi cycle test (MCT), short multi cycle test, short multi cycle test plus) and partial depleting test (e.g., short process test (SPT)), with the aim of reducing the testing time on the chassis dynamometer. As a result of testing with three BEVs with diff erent battery capacities, the test duration on the chassis dynamometer could be reduced by up to 85% compared to the MCT that is authorized test method by government. Each test has diff erent repeatability, and SPT has a higher deviation from the MCT test results than other test methods. Overall, the study can provide reliable research outcomes conducive to the future improvement of offi cial energy economy and single-charge driving range test standards for BEVs in each country.
Key Words: Battery electric vehicle · Energy economy · Range · Full depleting test · Partial depleting test
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