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레벨 4 자율주행자동차의 제작 안전 가이드라인에 대한 고찰
이광구,우현구,Lee, Gwang Goo,Woo, Hyungu 한국자동차안전학회 2021 자동차안전학회지 Vol.13 No.3
Since automated driving system (ADS) has great potential to innovate various fields of automobile and mobility industries, major countries are establishing safety standards for autonomous vehicles to support technology development. However, in order to prevent technology development from being hampered by the safety standards for technologies still under development, safety guidelines are applied until the technologies are mature. For example, the safety 'guideline' for level 4 ADS was published in December 2020 by the Ministry of Land, Infrastructure and Transport of Korea, while the safety 'standards' for level 3 ADS was promulgated in December 2019. In this study, the domestic safety guideline for level 4 ADS is analyzed with the guidelines of major advanced countries in terms of safety elements. As it takes a lot of time before the safety standards of level 4 ADS is introduced, it is expected that the safety guideline will be updated several times. As necessary considerations when updating the safety guideline, industry acceptance, harmonization between safety elements, validation methods of system performance, and the user options are discussed.
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이륜자동차의 주행저항 결정 기법이 WMTC 연비 측정에 미치는 영향
이광구,용부중,용기중,Lee, Gwang Goo,Yong, Boojoong,Yong, Geejoong 한국자동차안전학회 2018 자동차안전학회지 Vol.10 No.1
There are some ambiguities of the information on the fuel economy provided to the consumers because the standard and the detailed regulations for the fuel economy of the two-wheeled vehicle have not been established in Korea. Since Korea has been a signatory of World Forum for Harmonization of Vehicle Regulations since 1998, it is possible to remove the ambiguities by adopting the WMTC (Worldwide-harmonized Motorcycle Test Cycle) measurement method for the fuel economy of the two-wheel vehicle. As a preliminary study on the WMTC mode fuel economy, road loads measured by coast down method and table method were compared for the two types of two-wheeled motorcycles on sales in domestic market. In the same model, it was confirmed that the deviation of WMTC mode fuel efficiency was below -5% between products. On the other hand, the difference of WMTC fuel economy exceeded 5% between the coast down method and table method.
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유럽과 한국의 이륜차 엔진 성능 시험 규정에 대한 비교 연구
이광구,용기중,Lee, Gwang Goo,Yong, Geejoong 한국자동차안전학회 2016 자동차안전학회지 Vol.8 No.3
As a preliminary research to provide amendment for the engine performance test regulation of two-wheeled vehicles, the engine performance data are investigated in terms of maximum torque, rated power, and engine speed of motorcycles on sales in Korean market. Based on the engine performance database officially published to consumers, some forecasted problems are discussed when the maximum torque and the rated power are measured under the present test standards. EU and Korea regulations on engine performance test are carefully compared in terms of the accuracy of measurement devices, test procedures including data acquisition method, and allowable range of rated power measurement. Complementary items are discussed to eliminate ambiguities in the present regulation and to construct rational regulation system.
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이광구 한국청정기술학회 2014 청정기술 Vol.20 No.4
The potential mitigation of greenhouse gas (GHG) is studied in the Pohang steel industrial complex (PHSIC). Thetotal GHG emission in 2010 is estimated to be in the range from 4,174,000 to 4,574,000 tCO2-eq in PHSIC. To meet the targetproposed by the government, it is needed to reduce 552,000 tCO2-eq at minium by 2020. To estimate the potential amount ofGHG reduction, the technologies used in the voluntary carbon reduction projects are applied to 51 companies which are subject toGHG target management. From the viewpoint of technological availability and payback period, the fuel conversion and wasteheat recovery have an advantage in the short term with a possibility to reduce 160,000 tCO2-eq. In the mid term, the thermaltechnologies in steel and iron industry have the potential to cut 229,000 tCO2-eq, while the electrical technologies have thepotential of 125,000 tCO2-eq reduction. The gap between the target GHG mitigation and potential reduction using the short andmid term technologies is about 38,000 tCO2-eq, which should be compensated by the fundamental process innovation and theimplementation of the most cutting-edge technologies including renewable energy. 포항철강산업단지의 온실가스 잠재 감축량에 대한 연구를 수행하였다. 2010년 기준 철강산단의 온실가스 배출량은4,174,000~4,574,000 tCO2-eq로 추정되고, 정부의 온실가스 감축 목표를 달성하기 위해서 2020년까지 최소 552,000 tCO2-eq의 온실가스 감축이 요구된다. 온실가스 잠재 감축량을 추정하기 위하여, 자발적 온실가스 감축사업에 등록된 사례 기술들을 온실가스 목표관리제도 대상으로 지정된 51개 기업의 공정에 적용하였다. 기술적 용이성과 투자비 회수기간 측면에서분석한 결과, 연료전환과 폐열회수를 이용하여 단기적으로 160,000 tCO2-eq를 감축할 수 있는 것으로 예상된다. 중기적으로는 철강금속 산업 분야에 적용 가능한 열 부문과 전기 부문 기술을 이용하면 각각 229,000과 125,000 tCO2-eq를 감축할 수 있을 것으로 예상된다. 온실가스 예상 목표 감축량 대비 중․단기 기술로 달성할 수 없는 차이(38,000 tCO2-eq)에 대해서는 장기적으로 근본적인 공정 혁신과 최신 설비 및 신재생에너지 기술 도입을 통한 감축 노력이 필요하다.
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이광구,용부중,우현구 사단법인 한국자동차안전학회 2020 자동차안전학회지 Vol.12 No.4
As a sales volume of autonomous vehicle continually grows up, regulations on this new technology are being introduced around the world. For example, safety standards for the Level 3 automated driving system was promulgated in December 2019 by the Ministry of Land, Infrastructure and Transport of Korean government. In order to promote the development of autonomous vehicle technology and ensure its safety simultaneously, the regulations on the automated driving systems should be phased in to keep pace with technology progress and market expansion. However, according to SAE J3016, which is well known to classify the level of the autonomous vehicle technologies, the description for classification is rather abstract. Therefore it is necessary to describe the automated driving system in more detail in terms of the ‘Level.’ In this study, the functions and characteristics of automated driving system are carefully classified at each level based on the commentary in the Informal Working Group (IWG) of the UN WP29. In particular, regarding the Level 4, technical issues are characterized with respect to vehicle tasks, driver tasks, system performance and regulations. The important features of the autonomous vehicles to meet Level 4 are explored on the viewpoints of driver replacement, emergency response and connected driving performance.
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