http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
지능형 차량 도로 스시템에서 종적 차량 군집제어에 관한 연구
원문철(M.C.Won) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_1
A real time control algorithm for the longitudinal spacing control of vehicle platoone in IVHS is simulated. The longitudinal vehicle dynamics including engine. brake. torque converter. wheels. and tire slip are modeled as linear and non-linear elements. The engine and brake control algorithms based on multiple surface sliding control include adaptive observers and filters that condition measurement signals. The control law used for the real time experiment of four car platoon is simulated for four car and ten car platoon systems. The car to car communication time delays of vehicle velocities and accelerations ars included in the simulation. The simulation results of the four car platoon in general agree with the experimental results.<br/>
원문철(MOON-CHEOL WON),홍성국(SEONG-KUK HONG),정윤하(YUN-HA JUNG),김선영(SUN-YOUNG KIM),손남선(NAM-SUN SON),윤현규(HYUN-GYU YOON) 한국해양공학회 2008 韓國海洋工學會誌 Vol.22 No.3
his study discusses the design of an automatic berthing control algorithm for ships with a bow thruster and a stern thruster, as well as a rudder. A nonlinear mathematical model for the law speed maneuvering of ships was used to design a MlMO (multi-input multi-output) nonlinear control algorithm. The algorithm consists of two parts, the forward velocity control and heading angle control. The control algorithm was designed based on the longitudinal and yaw dynamic models of ships. The desired heading angle was obtained by the so-called "Line of Sight" method. An optimal control force allocation method for the rudder and the thrusters is suggested. The nonlinear control algorithm was tested by numerical simulations using MATLAB, and showedgood tracking performance.
트로틀 앵글 제어에 의한 내연기관의 토오크 및 속도의 비선형 제어
원문철(M.C.Won),강병배(B.B.Kang),박문수(M.S.Park),김태영(T.Y.Kim) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_2
A nonlinear engine torque and speed control algorithm using throttle angle control is developed with an engine load torque estimation algorithm. Three 3-dimensional nonlinear engine maps as a part of the nonlinear control algorithm are obtained from steady state engine dynamometer tests. An electric throttle actuator is developed using a stepper motor and a 8 bit micro-processor. The speed control and external load estimation algorithm are tested via engine speed control experiments, and show good performance enough for using various engine torque and speed control applications.<br/>
적응 순항 제어(ACC) 차량의 제어 알고리즘 및 실시간 수치실험 프로그램 개발
원문철(M.C.Won),강연준(Y.J.Kang) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_2
Adaptive Cruise Control(ACC) is one of key features of Intelligent Transportation System(ITS). In ACC, the steering is done by a driver, but the engine throttle valve and the brake are controlled electronically. The relative velocity and distance from the preceeding vehicle are measured by radars or image processing units and relevant vehicular spacing is maintained in ACC control systems. In this study, vehicle longitudinal dynamics are modeled to simulate vehicle longitudinal maneuver and to design longitudinal controllers for ACC vehicles. The control algorithm is designed based on the modeled vehicle longitudinal dynamics using a non-linear sliding mode control method. To verify the performance of the control algorithm, a real time numerical simulation program is developed on a Silicon Graphics workstation using C-language. A real time graphic program is also developed and integrated with the numerical simulation program.<br/>
고장진단 기능을 갖는 선박 횡동요 감요 장치 용 제어시스템 개발
원문철(Moon-Cheal Won),류상현(Sang-Hyun Ryu),최광식(Kwang-Sik Choi),정윤호(Yun-Ho Jung),류재문(Jae-Moon Lew),지용진(Yong-Jin Ji) 한국해양공학회 2010 韓國海洋工學會誌 Vol.24 No.3
This paper summarizes the development of an ART control system panel with a touch screen and sensors to measure the roll and roll rate of ships. The control system hardware consists of two micro-processors, analog and digital I/O circuits, various relay circuits, etc. Sensor fusion and moving cross algorithms are implemented to accurately estimate the roll angle and roll period. In addition, the control system adapts a fault detection algorithm to inform users of ART system faults. A touch screen in the control panel can display the ART system states and faults. The performance of the developed system was verified on real sea trials.
해저 집광차량의 위치 추정을 위한 확장 칼만 필터 알고리즘
원문철(MOON-CHEOL WON),차혁상(HYUK-SANG CHA),홍섭(SUP HONG) 한국해양공학회 2005 韓國海洋工學會誌 Vol.19 No.2
This study deals with the development of the extended Kalman filter(EKF) algorithm for the localization of underwater mining vehicles. Both simulation and experimental studies in a test bed are carried out. For the experiments, a scale down tracked vehicle is run in a soil bin containing cohesive soil of bentonite-water mixture. To develop the EKF algorithm, we use a kinematic model including the inner/outer track slips and the slip angle for the vehicle. The measurements include the inner and outer wheel speeds from encoders, the heading angle from a compass sensor and a fiber optic rate gyro, and x and y coordinate position values from a vision system. The vision sensor replaces the LBL(Long Base Line) sonar system used in the real underwater positioning situations. Artificial noise signals mimicking the real LBL noise signal are added to the vision sensor information. To know the mean slip values of the tracks in both straight and cornering maneuver, several trial running experiments are executed before applying the EKF algorithm. Experimental results show the effectiveness of the EKF algorithm in rejecting the sensor measurements noise. Also, the simulation and experimental results show close correlations.