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이중순(Joongsoon Lee),곽효연(Hyoyean Kwak),강병무(Byungmu Kang) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
It is necessary to develope the active safety system in terms of driver's safety and convenience. In this paper, we were developed the non-contact type of window safety system operated by the initial value of feedback control such as the output signal of photo sensor. It was designed based on the control algorithm with an improved load sensitivity. Therefore, compared with the existing system, it is possible to prevent the occurrence of a mull-function. Also, it has a convenient functions of the window such as an auto up/down and closing, and has a response times better. It can be installed the various types of common vehicles that have the different movement distance and speed of window. In conclusion, the developed system may be adapted the vehicle commercially.
공학자의 문제해결능력 향상을 위한 실험계획 및 분석을 적용한 교육과정의 설계 -기계공학계열의 학과를 중심으로-
이중순(Joongsoon Lee),곽효연(Hyoyean Kwak) 한국공학교육학회 2008 공학교육연구 Vol.11 No.1
복합․융합화 능력을 겸비한 인재를 양성해야 하는 시대적 요구에 부응하여 공학자의 창의적 문제해결 능력 함양은 공학교육의 중요한 새로운 교육목표이 다. 이 연구는 공학교육에 있어 실험계획 및 분석을 고려한 교육과정이 창의적 문제해결 능력을 뒷받침할 수 있는 중요한 요소임을 지적하고 이것을 효과 적으로 도입할 수 있는 교육과정의 설계에 그 목적을 두고 있다. 이를 위하여, 먼저 실험계획 및 분석의 교육주제 에서 기대되는 학습 성과와 공학자의 기본적인 공학 능력과의 연관성을 알아보았다. 그리고 전통적으로 산업에서 큰 비중을 차지하고 있는 기계공학계열학 과의 현재 공학 교육과정에서 운영중인 실험계획 및분석의 교육내용에 대한 현황을 조사하였고, 또한 해당 공학 전문가들의 주요 활동분야들 중의 하나인 연구논문의 작성에서 나타난 실험계획 및 분석에 관련된 지식의 활용 실태를 분석하였다. 마지막으로, 이러한 실증적 사례를 근거로 공학자의 기본 자질인 창의적 문제해결 능력 향상을 위한 하나의 수단으로서 효과적인 실험계획 및 분석의 교과를 도입한 공학교육 과정의 모듈을 개발하였다. The purpose of this paper is to design the curriculum by considering the experimental design and analysis for enhancing an engineer s creative problem-solving ability. This ability is one of the important objectives in modern engineering education. To achieve this purpose, first, it is suggested that the experimental design and analysis, a specific area of engineering education, is highly relevant to the creative problem-solving ability, one of the basic engineering competencies and of the final goals in engineering education. And also, the curriculum already introduced the experimental design and analysis in departments of mechanical engineering of universities are surveyed and reviewed. 59 papers are also analyzed to know how engineers applicate the knowledge of the experimental design and analysis to their activities. Finally, the module of engineering education curriculum introduced the experimental design and analysis to enhance effectively the engineer s creative problem-solving ability is suggested.
이중순(Joongsoon Lee),손일문(Ilmoon Son),강병무(Byungmu Kang),박원호(Wonho Park) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
This paper describes the development of the engine electronic control system simulator such as intake & exhaust system, Ignition system, injection system for engine electronic control parts, hybrid vehicle system simulator, chassis electronic control system and common rail direct injection system for high technology vehicle part. Each system simulator is composed of hardware simulator including of teaching materials and it will be providers the special solution of education system that most teachers, learners and research-development engineer.
광폭면 분무를 위한 2유체 노즐의 분무 특성에 관한 연구
이중순(Joongsoon Lee) 한국자동차공학회 2008 한국자동차공학회 지부 학술대회 논문집 Vol.2008 No.11
The purpose of this paper is to develop the twin-fluid atomizer having excellent performances. To develop this atomizer, the spray characteristics of how wide areas can be painted efficiently by one time spraying were studied in this paper. Spray phenomena are affected by the many factors determining the spray field such as the injection pressure of air assist, the injection pressure and viscosity of liquid paint, the open time of needle valve, the dimension of nozzle, and so on. In this study, the results that these factors affect on spray characteristics are as followings; The optimum spraying pressure of air assist was 1.5~2.0 ㎏f/㎠, and the appropriate injection pressure of liquid paint was 1.0 ㎏f/㎠. In these situations, the setting up pressures must be corrected because a decompression occurred when operating valves. The open of needle valve must be controlled to inject gas for 1~2 seconds after injecting liquid. This operating of the needle valve was necessary to avoid the affect of liquid column and to prevent the droplet deposit. The spray tip penetrations was gained form the experimental equations, and the effective spray angle was 85°±5° just when the injection pressure of air was appropriate. The distribution of spray areas was 350±50㎜. because of the injection pressure of air, the its distance from spray tip, and the needle vale lift.
RI 방식 CNG 엔진의 분사시기가 연소특성에 미치는 영향
박종상(Jongsang Park),진종무(Jongmoo Jin),하동흔(Dongheun Ha),염정국(Jungkuk Yeum),이중순(Joongsoon Lee),정성식(Sungsik Chung) 한국자동차공학회 2007 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
The prior study for RI(radical ignition) method was carried out in the experimental ways using a CVC(constant volume combustor) and applying the basic results from the CVC to a real engine. The rapid combustion and the expansion of the combustible lean limit of RI method were realized by the 0.45% sub-chamber volume of the overall combustion chamber in the CVC. But the gasoline fueled RI engine showed the severe problem of high cycle variation due to the difficulty of the residual gas scavenge in the sub-chamber from the former cycle. To solve this problem, CNG fuel was directly supplied into the sub-chamber instead of the port fuel injection. A DI Diesel Engine with the same specifications used in a previous study was modified to a RI-CNG Engine, and injection pressure was constantly kept at 6㎫ by a regulator. This study was performed to investigate the effects of injection timings on the combustion and performances of the RI-CNG Engine. The excess air ratio was varied from 1.0 to the lean limit at the condition of 50% throttle open rate and 1700rpm. The combustion characteristics of the RI-CNG engine such as in-cylinder pressure, indicated thermal efficiency, cycle-by-cycle variation, combustion duration and emissions were investigated.