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이운성(WoonSung Lee),주문원(MoonWon Choo),최영미(YoungMie Choi) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.2
가상현실 기술이 발전하면서 실제 응용에 적용하려는 시도가 다방면에 걸쳐 시도되고 있다. 특히, 특징 응용영역에 적합한 기능성을 구현함에 있어 가상현실 기술이 적절하게 활용될 수 있음을 여러 연구결과에서 보여주고 있다. 이 연구에서는 이러한 시도의 하나로 운전면허를 취득함에 있어 반드시 거쳐야 하는 운전교습소를 모델링하여 미리 운전면허 취득 환경을 경험하게 함으로써 면허취득에 소요되는 비용을 줄이고 대기오염도 감소시키는 환경 친화적인 응용개발 사례를 구현하고 있다. 이 연구를 바탕으로 기능성게임 개발을 수행할 계획이다.
수륙양용장갑차 시뮬레이터를 위한 실시간 차량 동역학 모델 개발
이지영(JiYoung Lee),이운성(WoonSung Lee),이지선(JiSung Lee) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
A tracked vehicle dynamic model with high efficiency and effectiveness is introduced that has been implemented<br/> on a training driving simulator. The multi-body vehicle model is based on recursive formulation and has been<br/> automatically generated from a symbolic computation package developed by the authors. The model includes a<br/> complete set of subsystems such as chassis, road wheels, suspension, powertrain, and track. An amphibious<br/> capability of an actual tracked vehicle is also simulated realistically enough to maximize training effectiveness of the<br/> simulator. The efficiency and effectiveness of the vehicle dynamic model is demonstrated through simulation.
Brake-By-Wire Hardware-In-the-Loop 시뮬레이션 시스템의 개발
이영송(Youngsong Lee),이운성(Woonsung Lee) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The X-by-wire technology, replacing mechanical components with electrical components, is essential to realizing an intelligent vehicle. The technology has many advantages including component reduction, design freedom increase and safety improvement. Brake-by-wire replaces hydraulic brake systems with electrical components. As a part of the x-by-wire technology, the brake-by-wire technology has been actively researched. The technology has a great advantage of solving manufacturing, maintenance and environmental problems associated with hydraulic systems. However, due to absence of mechanical or hydraulic back-up, the brake-by-wire system must be highly reliable and fault-tolerant. This requires environment in which the system can be developed and tested safely, before applying to an actual vehicle. The environment must be flexible in developing and testing various algorithms, and be faithful in reproducing the actual system. This study thus develops a brake-by-wire hardware-in-the-loop simulation system that can serve as the environment mentioned above. The electro-mechanical brake type has been adopted in this study for developing the system. A preliminary test of the developed system shows its effectiveness. However, the test also shows that the response speed of the system should improve. A follow-up study will be conducted to improve system response, develop a full-scale system, and integrate with a steer-by-wire system.
문희창(Heechang Moon),이운성(Woonsung Lee),김정하(Jungha Kim) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Our goal of this research is developing the tele-operated unmanned vehicle. In case of emergency, it needs the autonomous intelligent functions. Now we are trying to make a miniaturized unmanned vehicle, which is equipped with vision sensor before developing a full scale one. This system is classified by three major components. First, the vision system is composed of small CCD camera, wireless video transmitter and receiver, and host computer. Second, the vehicle control system which is combined with sensors and actuators. In here, we use photo interrupts and 2 DC motors for vehicle velocity and also a potential meter and a RC scrvo motor for steering angle control. Third, we need a communication system, which can transmit vehicle condition data to host computer and receive control value from it Therefore, we designed real time full duplex communication method by using wireless RF modules. Finally, we will make a miniaturized unmanned vehicle by using vision system. And also, we suggest the control method of vehicle and the wireless RF communication method.
충돌 회피를 위한 무인자동차의 제어 및 모델링에 관한연구
김상겸(Sanggyum Kim),이운성(Woonsung Lee),김정하(Jungha Kim) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Detection obstacle and avoidance are considered one of the key technologies on an unmanned vehicle system In this paper, we propose a method of detection obstacle and avoidance and it can be expressed as vehicle control, modeling, and sensor experiments. Detection obstacle and avoidance consist of two parts: one longitudinal control system for acceleration and deceleration ,and a lateral control system for steering control. Each system is used for unmanned vehicle control, which notes its location recognizes obstacles surrounding it, and makes a decision how fast to proceed according to circumstances. During the operation, the control strategy of the vehicle can detect obstacles and perform obstacle avoidance on the road, which involves vehicle velocity. In this paper, we propose a method for vehicle control, modeling, and obstacle avoidance, which are confirmed through vehicle tests.
김영석(Youngsuk Kim),김재석(Jaesuk Kim),이운성(Woonsung Lee) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study, an information transmission device for an Adaptive Cruise Control System has been designed to provide a driver with the system. The driver car, and other cars. A Simulator experiment has been carried out to investigate the effectiveness of the device by measuring headway-time and standard deviation of lateral position. The study shows that the drivers keep longer distance with preceding cars when the information is provided by the device.
오영기(YoungGi Oh),이지영(JiYoung Lee),남형권(HyungKwon Nam),정태영(TaeYoung Chung),이운성(WoonSung Lee) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
This paper describes the development of a real-time motorcycle simulator. This simulator consists of the following<br/> subsystems including a real-time motorcycle simulation system, a 2 DOF motion system, a front 1channel visual<br/> system, an audio system, a control force loading system. System integration and management software, MSManager,<br/> has also been developed for effective communication and data transfer among the subsystems. The<br/> simulator will also be networked with a driving simulator for distributed interactive simulation
차량 시뮬레이터를 이용한 적응순항제어의 사용자 수용성 평가
남형권(Hyoungkwon Nam),이지영(Jiyoung Lee),이운성(Woonsung Lee) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
As an important and relatively easy to implement technology for realizing Intelligent Transportation Systems<br/> (ITS), Adaptive Cruise Control (ACC) has been actively studied. One of the key issues associated with ACC system<br/> development is driver acceptance. The system should not conflict with driving behavior of a driver and further the<br/> driver feels comfortable with the system. The driving simulator, by allowing driver-in-the-loop simulation, is an ideal<br/> research tool for evaluating driver acceptance and usability of driver support systems. A simulator study, however,<br/> should be carefully designed and conducted to obtain meaningful results because human factor issues are always<br/> involved. The objective of this research is to conduct a pilot study for evaluating user acceptance of an ACC using a<br/> driving simulator.