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Signaling lamp용 1W LED 방열모듈 설계
강현우(Hyunwoo Kang),박종현(Jonghyun Park),박인흠(Inheum Park) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
LEDs are new light source for the automotive lighting. However some technical problems exist for application of the LED lighting. The thermal management of LED’s junction temperature is one of the fundamental technologies of LED signaling lamp to ensure basic specification in many aspects. This paper suggested thermal design method of the 1W LED cooling module.
황보영(Bo-Young Hwang),이혁민(Hyuk-Min Lee),박인흠(Inheum Park) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Automotive light guides have been used to express the unique identity of car makers through improvement of the design degrees of freedom and cost savings can be achieved by distributing light over a wide area using small number of light sources by light guide optical system. The objective of this study is to optimize light guide design conditions using DFSS (Design For Six Sigma) methods for luminance uniformity of automotive light guides. By using DFSS methods, major design factors are selected and optimized design conditions of them are decided. Also, the evaluation method of luminance uniformity is established by analyzing light guide products actually applied to the mass production of vehicles. The feasibility is demonstrated with the optical simulation. By applying these conditions to design light guides, the design time is greatly reduced and the luminance uniformity is substantially improved.
야간 보행자 사고예방을 위한 Spot 조명 시스템의 연구
방명극(Myung-Gug Bang),이혁민(Hyuk-Min Lee),이현수(Hyunsoo Lee),이홍석(Hongsuk Lee),안병석(Byoungsuk Ahn),박인흠(Inheum Park) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Most pedestrian accidents occur when the pedestrian crosses the road at night. In order to reduce the pedestrian accidents, presence of the pedestrian should be informed to a driver. Therefore, the lighting system which supporting the driver to recognize the pedestrians on the road in advance is needed to reduce the pedestrian accidents. There is the ‘Night Vision System’ already being applied to prevent accidents with pedestrians in high-end vehicles. The current system uses Far-Infrared(FIR) and Near-Infrared(NIR) theory to detect pedestrians shows the object through the monitor or cluster but this can be dangerous because the driver would have to look at two different areas, straight forwards at the road and monitor simultaneously. We have developed a system where the driver would not have to disperse his sight and could be alerted of the presence of the pedestrian by the system that brings attention on the object automatically. We have decided to name this system “Spot Light System”. In this study, we developed the spot light system that notifies the driver of pedestrian on the road. Near-Infrared(NIR) sensor and irradiation equipment achieve the image ahead of the vehicle. After the image processing work, a headlamp Electronic Control Unit(ECU) detects a located pedestrian and operates the spot lamp to illuminate the detected pedestrian.