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궤도차량 반능동 현수 제어기의 ECU-in-the-loop Simulation
손영일(Sohn. Young-Il),나혁민(Na. Hyuck-Min),송병석(Song. Byung-Suk) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, an ECU-in-the-loop simulation system is const겨cted in order to verify the performance of a semi-active suspension controller for tracked vehicles. This system consists of a real-time vehicle simulation model based on multi-body dynamics formulation, semi-active in-arm suspension unit model, real-time simulation hardware where the simulation model is downloaded, and prototype ECU hardware and software which adopt the skyhook control algorithm to improve the vehicle motion especially in cross-country driving. Real-time hardware-in-the-loop simulation results show the control functions in ECU has a proper performance.<br/> <br/>
손영일(Young-Il Sohn),김승균(Seung-Gyun Kim),이상문(Sang-Mun Lee),고영진(Young-Jin Ko),이경돈(Kyung-Don Lee) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
In order to develop an active suspension for 6-wheeled vehicle, control simulations are carried out in this paper. The vehicle has 6 wheels with type of trailing arm suspension. Vehicle model is built using a multi-body dynamics simulation software. Based on this model, we connect Matlab/Simulink - a computer-aided control system design tool - to this model, making a co-simulation system. Sky-hook damping control and near constant force suspension control are used as main control strategies. Under single bump road profile, we compare the performances of these two algorithms. Furthermore, required maximum torque, rpm, and power under the road profiles are calculated using control simulation results.
GECM과Al및Ti간의갈바닉부식에미치는양극산화및열산화의영향
김영식 ( Young Sik Kim ),장현영 ( Hyun Young Chang ),손영일 ( Young Il Sohn ),유영란 ( Young Ran Yoo ),임현권 ( Hyun Kwon Lim ) 대한금속재료학회 ( 구 대한금속학회 ) 2010 대한금속·재료학회지 Vol.48 No.6
Graphite epoxy composite material (GECM) shows high specific strength and its application in the aerospace industry is gradually increasing. However, its application would induce galvanic corrosion between GECM and metallic materials. This work focused on the effects of anodizing and thermal oxidation on galvanic corrosion in a 3.5% NaCl solution between GECM and aluminium and titanium. In the case of anodized aluminium, galvanic corrosion resistance to the GECM was greatly improved by the anodizing treatment regardless of area ratio. In the case of anodized titanium, the anodizing by a formation voltage of 50V increased corrosion resistance of titanium in galvanic tests. Thermal oxidation of titanium also improved corrosion resistance of Ti to GECM.
이진수,김백남,손영모,이종원,임경일,Lee, Jin Soo,Kim, Baek Nam,Sohn, Young Mo,Lee, Jong Won,Im, Kyung-Il 대한소아감염학회 2001 Pediatric Infection and Vaccine Vol.8 No.1
기생충 감염이 거의 없는 최근, 저자들은 5세 여아에서 소아에서는 드문 광절열두조충 감염을 경험하였기에 문헌 고찰과 함께 보고하는 바이며, 생선회의 소비가 급증하고 쉽게 사먹을 수 있는 시장의 형성으로 환자의 증가가 예상되어 전국민적인 보건교육과 함께 비특이적 소화기 증상을 가진 환아에 대한 소아과 의사들의 자세한 문진과 의심이 요구된다고 본다. We experienced one rare case of Diphyllobothrium latum infection in childhood. It was proved by collection of worm after praziquantel treatment. Human diphyllobothriasis is chiefly caused through eating raw or unproperly cooked fish such as trout or salmon. This case was a 5-year old girl residing in Seoul, from whom a kind of pseudophyllidean tapeworm was detected in the feces. She would often eat sushi(raw fish) and had abdominal pain, but not revealed any sign of anemia. Obtained chain of worm segments that sized $0.25{\times}1.25cm$ was compatible with D. latum. Including the present 31 cases, total number of human D. latum infections proven by worms in Korea becomes 32 cases, and total number of child D. latum infections proven by worms in Korea becomes 4 cases.
카메라 기반 레이저 포인터 시스템의 실시간 처리와 상호작용 개선을 위한 제안
임종관(Jong Gwan Lim),손영일(Young Il Sohn),파록 샤리피(Farrokh Sharifi),권동수(Dong Soo Kwon) 한국HCI학회 2008 한국HCI학회 학술대회 Vol.2008 No.2
For reliable real-time interaction in a camera-tracked laser pointer system, a new idea is proposed and its feasibility is tested in this paper. In order to improve response time in the system and remove useless visual overload, the function of a laser pointer in the system is divided, the Region of Functional Interest is defined and subsequently its new interactions are introduced. Finally the experiments to measure reliability, accuracy, latency and usability are conducted and the results are presented. 본 논문에서 카메라 추적 기반 레이저 포인터 시스템의 실시간 상호작용을 개선하기 위해 새로운 아이디어를 제시하고 그에 대한 타당성을 분석한다. 영상정보에 기반한 해당 시스템의 반응시간을 향상시키고, 청중에게 성가신 시각정보의 남용을 방지하기 위하여 레이저 포인터의 기능을 이원화 하였다. 이를 위해 기능성 관심 영역을 정의하고 이에 따른 새로운 상호작용을 소개하였다. 끝으로 위 아이디어에 기반한 시스템의 성능을 점검하는 실험을 진행 하여 신뢰도, 정확도, 잠복기 및 유용도 측면에서 성능을 측정하였다.
[동력전달계부문] 하이브리드 연료전지 자동차의 HILS 응용
김영렬(Youngryul Kim),손영일(Young-il Sohn),송병석(Song Byung-Suk),하종배(Ha Jong-Bae),이각섭(Lee Gak-Sup) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper describes the real time simulation environment in order to develop and verify the power control algorithm for a hybrid fuel cell vehicle. All power systems involving VCU(vehicle control unit) are applied as a real hardware. On the other hand, the driver model and the longitudinal vehicle dynamics model are applied as a software. The driving load of vehicle obtained from the longitudinal dynamics is implemented by dynamometer.<br/> For carrying out Hardware-in-the-loop simulation test, the standard driving cycle applies FUDS(Federal Urban Driving Schedule) cycle and the power control algorithm of fuel cell system applies thermostat type and power follower type. From that, the fuel economy of both 10kw fuel cell and 25kw fuel cell is compared.