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노만수,김다은,안진한,김기범 한국자동차공학회 2024 International journal of automotive technology Vol.25 No.1
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.
외기온도 및 충전방식에 따른 전기자동차 1회충전 주행거리, 충전특성 및 연비 분석 연구
노만수(Man Su NOH),박현창(Hyun Chang PARK),노경완(Kyung Wan RHO) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6
In order to increase more high energy efficient electric vehicles, the government introduced customers the labelling scheme on the electric vehicles to provide information about range and energy economy. Nevertheless, in the case of electric vehicles, the characteristics are easily changed by depending on the outside temperature conditions and the charging methods. Therefore, this study showed the changes of the electric vehicles in terms of the range, charging efficiency, and energy economy according to seasonal characteristics and charging methods. In addition, the results of this study are able to be helpful to prepare an efficient operation plan for the electric vehicle owners.
Vehicle In the Loop 개발단계 전장부품을 장착한 전기 플랫폼 차량의 에너지효율 검증 연구
노만수(Man Su NOH),박현창(Hyun Chang PARK),노경완(Kyung Wan RHo) 한국자동차공학회 2022 한국자동차공학회 학술대회 및 전시회 Vol.2022 No.11
In order to achieve the 2030 NDC target for reducing greenhouse gas emissions in South Korea, electric vehicle’s sales are expected to be keep rising. Electric vehicles are effective in reducing greenhouse gas emissions, but it can threaten to South Korea vehicle part companies with low technology in terms of market competitiveness. In order to protect the domestic industry, it is necessary to support the technology development of the vehicle parts industry. It were verified through various test modes that energy economy, range, and powertrain efficiency of electric platform vehicles developed to support the technology development of domestic vehicle parts manufacturers.
외기온도에 따른 전기자동차 에너지 소비 및 배터리 저항 특성 분석 연구
노만수(Man Su NOH),박현창(Hyun Chang PARK),노경완(Kyung Wan RHO) 한국자동차공학회 2022 한국자동차공학회 지부 학술대회 논문집 Vol.2022 No.5
The Republic of Korea has implemented energy economy labeling for electric vehicles since 2012. The energy economy of vehicle can vary depending on various conditions. Electric vehicle has a significant change in energy economy depending on ambient temperature due to its chemical characteristics and air conditioning system different from that of the internal combustion engine vehicle. In this study, energy economy characteristics were analyzed through Multi Cycle Test at -7℃, 10℃, 25℃ and 35℃ ambient temperatures. The changes in energy economy in city, highway and combined of electric vehicles were compared. In addition, high voltage batteries, which are main components of electric vehicles, measured current and voltage according to changes in ambient temperature, and analyzed high voltage battery resistance characteristics according to ambient temperature