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Engine ECU_ILS적용 상용차량의 연비 및 배출가스 평가시스템 개발
고영진(Youngjin Ko),김태준(Taejun Kim),박경민(Kyungmin Park),노윤식(Yunsik Ro),문남수(Namsoo Moon),오승용(Seungyong Oh) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Jeonbuk Institute of Automotive Technology(JIAT) has recently developed a Hardware-in-the-Loop(HIL) testing system for Engine ECU of Hybrid Electric Vehicle(HEV). The objective of this project was to develop an evaluation system for fuel economy and exhaust emission evaluation of commercial hybrid electric vehicles appling ECU_ILS technology. This system was previously applied to conventional vehicles. To develop an engine and vehicle, there is a need for a system that can evaluate power performance such as dynamometer and exhaust gas analyzer but a lot of times and expenses are spent. In contrast, a model based development environment provides a less expensive alternative which controlled repeatable tests can be performed in much shorter time periods. Therefore, HILS system environment that can consider the behavior of actual vehicles for evaluation of control logic, fuel consumption and exhaust gas is required. This developed system can analyze and evaluate fuel injection rate, fuel injection time, fuel consumption and exhaust gas using map like actual vehicle test on road. Also, this system is expected to be able to analyze the effects of vehicles behavior and control logic development of peripheral device in relation to engine and vehicles. This HIL system can be used to develope the system that can evaluate fuel economy and exhaust gas by control strategy of commercial hybrid vehicle systems in the future.
AMT의 과도응답 특성 구현을 위한 동적시스템 모델링에 관한 연구
고영진(Youngjin Ko),조상현(Sanghyun Cho),박경민(Kyungmin Park),문남수(Namsoo Moon),임명택(MyungTaeck Lim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
This paper presents shifting characteristics and transient response of automated manual transmission(AMT). In order to analyze the transient response characteristics, an AMT model is developed by considering the clutch control and shift control strategy. the development for the AMT model and clutch engagement model are required to design a model-based control system before the experimental verification. In addition, transient response during clutch engagement operation depends primarily on the modeling methodology in the simulation environment. In this paper, the dry clutch model to describe the stick-slip transition mode and the transmission model to describe the neutral gear shifting is introduced and compared with each other.
고영진(Youngjin Ko),윤기준(Keejoon Yoon) 한국스포츠교육학회 2022 한국스포츠교육학회지 Vol.29 No.2
본 연구의 목적은 중등학교 체육수업 기반 건강교육 실천 양상을 탐색하고 이를 바탕으로 효과적인 건강교육 방향 설정을 도출하는 데 있다. 52명의 체육교사가 연구에 참여했으며, 개방형 설문(n=52), 심층면담(n=4), 문헌분석으로 자료를 수집했다. 수집된 자료는 귀납적 범주분석 기법을 활용하여 분석되었다. 연구 결과는 다음과 같다. 첫째, 체육교사는 건강을 가장 중요한 신체활동 가치로 인식하고 있었다. 둘째, 건강교육은 체계적으로 실천되고 있지 않았다. 셋째, 체육교사의 체육수업 기반 건강교육 설계 및 실천 전문성이 부족했다. 건강을 가장 중요한 가치로 인식하지만 건강교육이 체계적으로 진행되지 않은 현상을 학교체육 담론, 정책 및 사업 운영, (예비)체육교사교육 측면에서 살펴보고 효과적인 건강교육 방향 설정에 대해 논의했다. The purpose of this study was to explore the aspects of how health education(HE) based on physical education(PE) lessons are practiced in secondary schools. A total of 52 PE teachers participated in this study. Open-ended questionnaire and in-depth interviews were conducted. Data collected were analysed through categorical themes analysis. To ensure the integrity of the study, triangulations, identification of participants, and peer review were employed. The results of the study are as follows. First, the participants considered the health management skills as the most important goal. Second, the participants used a range of pedagogies for HE which were unsystematic. Third, the participants had low level of skills to design and practice HE through PE. PE discourses, policies, PE teacher education related to HE in secondary schools in the last two decades in South Korea were discussed to fully understand the phenomena emerged in the findings.