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안국현(Kukhyun Ahn),이진원(Chinwon Lee),임원식(Wonsik Lim),박영일(Young Il park),이장무(Jang Moo Lee) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_2
It's important to have a precise model of the clutch damper to simulate the entire powertrain model and predict the response of the system In this paper we developed a new model in which the spring used in the clutch damper is divided into a finite number of elements. The model takes many unique properties of arc-shaped springs into consideration and is anticipated to be more precise than conventional simple models. With that model we could present two meaningful results we can utilize afterwards. One is the simulation concerning the peak torque transmitted via clutch damper and another is that shows the characteristics of the clutch damper.
HEV 의 연비, 배기 가스 성능 향상을 위한 주행 전략 개발
안국현(Kukhyun Ahn),윤원석(Wonseok Yoon),박영일(Yeong-il Park),이장무(Jang Moo Lee) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Two of primary performances of diesel hybrid electric vehicles are enhanced fuel economy and reduced NOx emission. Achieving the two goals at the same time is difficult because the optimal operating regions for improving each performance indices are divided into two distinct regions in the case of diesel engines. In this paper, two attempts were made to achieve both goals by introducing a weighted sum optimization problem and an inequality constrained optimization problem when developing optimal control strategies. The ways to solve the problems were developed and the respective results from two attempts were compared.<br/>
이진원(Chinwon Lee),안국현(Kukhyun Ahn),임원식(Wonsik Lim),박영일(Yeong ll Park),이장무(Jang Moo Lee) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_2
A torque converter is one of key component in an automatic transmission, and many new researches on a torque converter have been conducted for last 10 years. These researches include visualizations of flow field and computational fluid dynamic techniques. This paper presents relative sensitivities of design parameters using these research results and orthogonal array. The results prove that particles of design experience accumulated for many years are still valid.<br/>