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이정기,용기중,김자륭,엄성복,Lee, Jung-Ki,Yong, Geejoong,Kim, Cha-Ryung,Eom, Seong-Bok 한국자동차안전학회 2018 자동차안전학회지 Vol.10 No.3
Greenhouse gas is the big issue of the whole world. So foreign countries, EU, USA, Japan, China and Korea made the policy for reducing greenhouse gas. For calculation of reduction, it is necessary to know the quantity of current greenhouse emission per year in Korea. It is not reflected real driving condition for measuring the Fuel economy and greenhouse gas. The subject of this study is to figure out the characteristics which influence on greenhouse gas in real driving condition. And final goal is applying the policy greenhouse emission reduction.
NOVC형식 하이브리드 자동차의 최고 출력측정방법 연구
김주원,용기중,Kim, Joowon,Yong, Geejoong 한국자동차안전학회 2018 자동차안전학회지 Vol.10 No.2
UNECE/WP29/GRPE/EVE has recently defined that the power of a hybrid electric vehicle is the system power. Although a method for measuring the maximum power of a hybrid electric vehicle is presented by KATRI, it does not consider charging and discharging characteristics of traction batteries. This study provides a maximum power measurement method which reflects the charging and discharging characteristics of traction batteries in NOVC-HEVs (Not Off Vehicle Charging-Hybrid Electric Vehicles). Both methods are compared with regard to the output measurement results.
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.
용부중,용기중,신재호,류기현,Yong, Boojoong,Yong, Geejoong,Shin, Jaeho,Ryu, Kihyeon 한국자동차안전학회 2016 자동차안전학회지 Vol.8 No.3
As motorcycles are getting more widely used recently, motorcycle accidents are gradually increased every year. Although most accidents are caused by human factors, the importance of motor vehicle safety standards cannot be underestimated indeed. A variety of regulations related to motorcycle safety have been issued in many countries such as EU, U.S., and Australia, etc. In order to harmonize the international safety standards, it is necessary to develop or enhance the Korean Motor Vehicle Safety Standards (KMVSS) for motorcycles. In this study, motorcycle safety standards for an exterior rear-view mirror and a tire are investigated. Actual test procedures are expected in sequential studies according to the results provided herein. Also, the findings in this paper can be utilized to ensure the KMVSS for a safer driving.
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.
자동차 안전기준 중 구동축전지 출력시험 개정을 위한 연구
차지훈(Jihun Cha),김경삼(Gyungsam Kim),정혁(Hyuk Jung),최동석(Dongseok Choi),이슬기(Seulki Lee),이광범(Kwangbum Lee),권해붕(Haeboung Kwon),용기중(Geejoong Yong) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Increasing needs about how to evaluate maximum power of traction battery lead R&D of power test procedure for traction battery by supporting of MLTM(Ministry of Land, Transport and Maritime Affairs). To be adopted KMVSS, This power test procedure would be specific, possibly repeatable and anti-design-regulatable. As a first step for this R&D, other power test procedure for traction battery had been studied even though module level test procedure not a pack level. Traction battery"s dynamic power performance pattern had been also studied. On this paper, the power test procedure Ver. 1.0 developed by this R&D is evaluated by commercialized traction battery.
신재곤(Jaekon Shin),용기중(Geejoong Yong),신재승(Jaeseung Shin),김성범(Sungbum Kim),김성섭(SungSub Kim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The Broadband electromagnetic radiation generated by the vehicle can be measured using a vehicle-to-antenna spacing 10m or 3m, two alternative reference antenna distance are permissible 10m or 3m from the vehicle in the European Specification(EEC and ECE), but can be used only 10m method in the SAE and CISPR Specification until a recent date. Generally the difference between the limit for the radiated emissions measured at 10m antenna distance and 3m antenna distance is10dB in theory, but test result is very different according to the test vehicle and test frequency. We can find multiple antenna positions are required if the length of the vehicle is greater than 3dB bandwidth of the antenna for the 3m measurement distance
이정기(JungKi Lee),용기중(GeeJoong Yong),이종현(JongHyun Lee),이광범(KwangBum Lee),홍윤석(YunSeog Hong),이현우(HyunWoo Lee),정혁(Hyuk Jung),임종순(JongSoon Lim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
The effective use of vehicle have a energy savings and a reduction of greenhouse emission cause for a greenhouse effect. For the high cost of fuel and the effectuation of The Kyoto Protocol, we should achieve the vehicle Fuel economy and CO₂ emission test according to the variable vehicle weight and should announce the effectiveness that fuel economy and CO₂ emission depend on the driving method and circumstance to the driver.
커먼레일 디젤자동차의 난방성능 향상을 위한 보조냉각수펌프적용에 관한 실험적 연구
이정화(JungHwa Lee),용기중(GeeJoong Yong),이종현(JongHyun Lee),이광범(KwnagBum Lee),김희준(HeeJun Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
The automotive thermal management is responsible for maintaining engine warmup and passenger compartment temperatures, which promote passenger comfort in Common Rail Direct Injection. High efficient engine which is recently developed has been insufficiency heat capacity and the problems of defrosting and thermal comport of passenger. Electric auxiliary heating systems is required to improve the heating performance of cabin temperature. Keeping up a comfortable environment in the cabin, it should increase the coolant flow rate of heater core during low ambient temperature conditions. Therefore, purpose of this study is to evaluate the Auxiliary Water Pump for improving heat performance through management of the coolant flow rate in CRDI which implemented with Positive Temperature Coefficient.