• Transactions of the Korean Society of Automotive Engineers
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• v.15 no.2
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• pp.182-186
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• 2007

This paper studied performance characteristics of hybrid automotive to replace existing fossil fuel vehicles. Specially, about power split type HEV that is T-HEV's drive system when a vehicle drives at steady speed, monitored both output of each engine, motor and generator and battery SOC (state of charge) and analyzed performance characteristic of power transmission system and electricity power parts. This study shows those that acquired and analyzed information from signals between HCU and each controller of actual T- vehicle. From this study, it is confirmed that each conditions of EV and HEV drive can be a improvement with respect to the fuel efficiency of vehicles.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.970-971
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• 2008

본 논문은 하이브리드 전기자동차를 위한 에어컨 압축기용 구동 드라이브에 대해 연구하였다. 전기자동차의 경우 열악한 환경에서 구동되기 때문에 센서리스 타입은 필수적이며, 고효율화와 고집적화를 위해서 매입형 영구자석 전동기 IPMSM (Interior Permanent Magnet Synchronizing Motor)을 사용하였다. 본 논문에서 사용된 IPMSM은 비정현적인 역기전력과 입력전류를 가지기 때문에 기존 IPMSM의 센서리스 방식은 불가능하다. 이를 해결하기 위해 최소차원의 관측기를 구성하고 속도함수에 의한 가변차단주파수에 의한 강인한 필터회로를 이용한 새로운 제어 알고리즘을 제안하였다.

• The Journal of the Convergence on Culture Technology
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• v.5 no.1
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• pp.377-384
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• 2019

To cope with severe global warming and environmental pollution problem regulations on automobile emissions and fuel efficiency has been tightened around the world. Therefore zero emission vehicles which do not use fossil fuels such as electric vehicles have attracted attention by government and both industry and academia at developed countries. In the market, electric vehicles are being selected from more and more consumers because of technological advances and policy support. Recently another zero emission vehicle, hydrogen fuel cell vehicle, is drawing attention and is expected to become deployed widely. This paper reviews technology, current status and global trends of zero emission vehicle. The economical analysis of zero emission vehicles are also presented.

• 한국전기화학회:학술대회논문집
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• 2005.04a
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• pp.25-25
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• 2005

• Bulletin of Korea Environmental Preservation Association
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• s.397
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• pp.40-43
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• 2012

현대자동차는 글로벌 환경이슈인 기후변화에 대응하기 위해 공장 부문과 본사 서비스, 판매, 연구소 등 건물부문에서 사업장 온실가스 배출량을 감축하기 위해 노력하고 있다. 한편 제품의 $CO_2$ 배출량을 줄이기 위해서는 기존 차량의 연비를 개선하는 동시에 하이브리드, 전기자동차 수소연료전지차 등 친환경 자동차를 개발하고 있다.

• Proceedings of the KIPE Conference
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• 2012.07a
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• pp.140-141
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• 2012

본 논문은 새로운 역률보상회로를 적용한 플러그인 하이브리드 전기 자동차 탑재형 완속 충전기(On-Board Charger, OBC)를 제안한다. 제안하는 완속 충전기용 역률보상회로 (Power Factor Correction, PFC)는 기존의 부스트 컨버터를 기본으로 하는 역률보상회로와 동일한 개수의 회로 부품과 입 출력전압 관계를 가진다. 회로 구조상 전파 정류된 DC 전압을 저장하는 입력 커패시터와 입력 인덕터의 에너지가 저장되는 출력 커패시터가 직렬 결합되어 DC-link 전압을 형성하므로 출력 커패시터의 동작전압(Working voltage)을 낮출 수 있어 단가절감이 가능하다. 제안된 역률보상 회로를 적용한 플러그인 하이브리드 전기 자동차 탑재형 완속 충전기에 대한 동작 특성을 해석하고 시뮬레이션을 통해 타당성을 검증한다.

• Environmental and Resource Economics Review
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• v.32 no.3
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• pp.167-190
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• 2023

This study analyzes the potential demand for automobiles based on fuel type using survey data in Korea. The dependent variable of the model is the future desired fuel type, including gasoline, diesel, hybrid, electricity, and hydrogen. The main explanatory variables are the respondent demographic characteristics, key reasons for choosing vehicle fuel type and environmental awareness extracted via principal component analysis (PCA). Using a multinomial logit (MNL) model, we find that respondents who consider fuel economy and infrastructure increase the demand for a hybrid car but decrease the demand for electric and hydrogen vehicles. The denial-types increase the demand for gasoline (petrol) and diesel (light oil), and decrease the demand for electric vehicles. The anxiety-types increase the demand of hybrid vehicles, and decrease the demand for electric vehicles. In contrast, in the case of pro-types, the demand for diesel (light oil) hydrogen vehicles decreased.

• 한국전기화학회:학술대회논문집
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• 2003.10a
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• pp.19-19
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• 2003

• Transactions of the Korean Society of Automotive Engineers
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• v.23 no.5
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• pp.508-514
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• 2015

In this paper, the powertrain efficiency is analyzed for the input split type hybrid electric vehicle. For considering the powertrain loss, the power loss models of planetary gear and motor are applied. And, the mathematic equations of powertrain speed and torque are found by using the lever analogy. With the above models and equations, the powertrain efficiency is analyzed for the 0 to 180 km/h vehicle velocity range. From the analysis results, it is found that the transmission efficiency with the power loss of planetary gear is smaller maximum 2.1% than the transmission efficiency without the power loss of planetary gear.

• Transactions of the Korean Society of Automotive Engineers
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• v.10 no.5
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• pp.121-128
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• 2002

In this paper, the fuel economy of plug-in type hybrid electric vehicle is investigated through simulation. For the simulation study, 2 shaft type parallel hybrid powertrain is chosen and its operation modes are described. The operation algorithm which yields operation points of minimal fuel cost is suggested. Dynamic model fur operation of HEV and simulation procedure is described. Simulation results of fuel economy is compared to non plug-in type HEV as well as conventional vehicle. With total driving distance of 37km and full usage of 2kwh of electric energy stored in battery pack, plug-in type HEV shows 28-30% improved fuel economy compared to non plug-in type HEV and 86-93% improved fuel economy compared to conventional vehicle.