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- 저자 : 이태영(Taeyoung Lee) (검색결과 77 건)
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이태영,이경수,이찬규,이재완,Lee, Taeyoung,Yi, Kyongsu,Lee, Chankyu,Lee, Jaewan 한국자동차안전학회 2012 자동차안전학회지 Vol.4 No.1
This paper discusses the evaluation of the safety impact of the Adaptive Cruise Control (ACC) system in Korea. To evaluate the safety impact, this paper suggests an analysis method by using the test scenario and field operational test data. The test scenario is composed to represent the main component factor of the ACC system and ACC related accident situation such as rear-end collision, lane-change, and road-curvature, etc. Also, from the field operation test data, the system's potential to increase the safety can be measured ideally. Besides, field operational testdata was used to revise the expected safety impact value as Korean road conditions. By using the proposed evaluation method, enhanced safety impact of the ACC system can be estimated scientifically.
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이태영,이경수,이재완,Lee, Taeyoung,Yi, Kyongsu,Lee, Jaewan 한국자동차안전학회 2013 자동차안전학회지 Vol.5 No.1
This paper presents a development of the Advanced Emergency Braking (AEB) Algorithm for passenger vehicles. The AEB is the system to slow the vehicle and mitigate the severity of an impact when a rear end collision probability is increased. To mitigate a rear end collision, the AEB comprises of a millimeter wave radar sensor, CCD camera and vehicle parameters of which are processed to judge the likelihood of a collision occurring. The main controller of the AEB algorithm is composed of the two control stage: upper and lower level controller. By using the collected obstacle information, the upper level controller of the main controller decides the control mode based not only on parametric division, but also on physical collision capability. The lower level controller determines warning level and braking level to maintain the longitudinal safety. To decide the braking level, Last Ponit To Brake and Steer (LPTB/LPTS) are compared with current driving statues. To demonstrate the control performance of the proposed AEBS algorithm's, closed-loop simulation of the AEBS was conducted by using the Matlab simlink and CarSim software.
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싱가포르 도시계획체계와 디자인가이드라인의 특징에 관한 연구
이태영,Lee, Taeyoung 인천대학교 도시과학연구원 2022 도시과학 Vol.11 No.1
Even if Korea has established various legal guidelines as well as plans for the purpose of systematic management of urban citycapes, various problems have been pointed out, such as a decrease in operational efficiency because the legal framework is not clearly defined and the guidelines do not fully reflect regional characteristics. In the midst of this, Singapore is being mentioned as a representative example of enhancing international competitiveness by forming an outstanding urban cityscape through successful urban planning and operating system. Therefore, this study aims to suggest a direction for the improvement of Korea's urban planning and design guidelines by investigating and analyzing the characteristics of Singapore's urban planning system and design guidelines. As a result of the research and analysis, it was concluded that Singapore's urban planning system was based on the unified planning and management system. In particular, the Singapore Urban Design Guidelines provide differentiated guidelines to maintain and strengthen regional characteristics based on linkage with higher-level plans as detailed practical guidelines, and were operated as flexible guidelines reflecting the changes of the times and the needs of members of society. It also provides a direction for the improvement of the Korean urban design system, such as to increase the executionablity of the plan and the efficiency of operation by utilizing various guidance and support policies, rational and simplified deliberation procedures, and allow a platform that enhances the accessibility and convenience of related information.
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이태영(Lee Taeyoung),차웅석(Wung-Seok Cha),김남일(Nam-Il Kim) 한국의사학회 2009 한국의사학회지 Vol.22 No.1
Complementary/alternative medicine has been developed in extremely diverse forms reflecting inter-state historical, cultural differences. As Korean Medicine is institutionally accepted to the same status of Western Medicine, the concept of complementary/alternative medicine needs to be realigned. Data-basing academic level Web Service DBpia, the trend of research in the field of complementary/alternative medicine was analyzed by focusing on 144 treatises listed in the Korean Journal. As the result, we could subgroup treatises as those of concept, category, current status, institutions, details, and miscellany. The treatises related to the answers to “What is Complementary/alternative medicine” apply to the category of ‘concept’ Likewise in category are listed the treatises covering range and kinds of medicine. In ‘category’, ‘current status’, the discussions about the direction of Complementary/alternative medicine pending and treatises dealing with clinical applications are covered. In ‘institutions’, treatises on policy-making are enlisted. In ‘details’ ,treatises applied on specific diseases were sub-grouped. Others not otherwise covered enlisted in the list of “Miscellany”.
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이태영(Taeyoung Lee),이경수(Kyongsu Yi),김장섭(Jangseop Kim),이재완(Jaewan LEE) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
This paper presents a Development of the Advanced Emergency Braking System (AEBS) for Commercial Vehicles. To avoid or mitigate a collision, the AEBS is defined as activate braking system which detect a potential forward collision and automatically decelerate the vehicle. The AEBS control algorithm was developed, taking these definitions into account. The AEBS control algorithm consists of three parts: the obstacle detection part, the main controller part and the braking actuating part. To detect obstacles ahead, a CCD camera and laser/ladder sensors are used. By using the detected obstacle information, the main controller decides the control input. The main controller for the AEBS is composed of the two control stages: upper and lower level controllers. The main controller not only determines when to pre-warn to avoid the obstacles ahead of the vehicle, but also calculates the desired deceleration for longitudinal safety. When the control algorithm calculates the desired deceleration, the braking actuating part calculates the desired brake pressures. To validate the proposed AEBS algorithm, a longitudinal vehicle model was developed by using the real vehicle’s test data.
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확률적 운전자 모델 개발을 위한 운전자 주행 특성 분석
이태영(Taeyoung Lee),이경수(Kyongsu Yi),정창현(Changhyun Jeong) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.5
본 논문은 확률적 운전자 모델 개발을 위한 운전자의 주행 특성 분석에 대한 논문이다. 실제 운전자를 표현할 수 있는 운전자모델을 개발함에 있어서, 운전자의 인식오차와 실수 요소가 운전자를 나타내기 위한 상태변수에 적용된다면 실제 운전자의 확률적 분포를 나타내는 운전자 모델을 구성할 수 있다. 따라서, 다양한 주행상황에서 수집된 실제 운전자의 주행데이터를 분석하였다. 이러한 분석을 통하여 기존의 정적 운전자 모델을 기반으로 한 확률적 운전자 모델을 개발하다. 확률적 운전자 모델의 상태변수는 정적 상태변수와 오차상태변수로 구성되며, 실제 운전자의 주행패턴과 마찬가지로 인식, 판단, 행동 부분으로 구성하였다. 이렇게 구성된 확률적 운전자 모델을 검증하기 위하여, 동일한 도로에 대하여 수집된 실제 주행데이터와 시뮬레이션 결과를 비교한다. This paper presents an analysis of the driving characteristic for development of a stochastic driver model. If proper human cognition/error mechanisms are included in driver model’s states, it is possible to reproduce real driving behavior. In order to develop the stochastic state for the driver model, driver’s characteristics was analyzed by using the manual driving data. For example, relations between vehicle and preceding vehicle, connection of the time gap and clearance, acceleration distribution with respect to the vehicle velocity were defined as composition of the mean value term and its distribution term. By using this analysis, states for the stochastic driver model were defined as combination terms of the nominal states and error states which are caused by human perceptual limitation, time delay, and distraction, etc. The stochastic driver model is composed of 3 parts: ‘recognition’, ‘decision’ and ‘action’. Consequently, the stochastic driver model can generate the driver’s stochastic characteristics in longitudinal and lateral dynamics. Finally, to validate the stochastic driver model, comparison between simulation results of the stochastic driver model and manual driving data was conducted.
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