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배준영(J.Y.Bae),심재진(J.J.Shim),김영범(Y.B.Kim),이두형(D.H.Lee) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_1
Mostly, A ride comfort of vehicle is influenced by vertical accelerations. This study is focusing on development a semi-active suspension system with Continuously variable damper(HS-SH type), only using absolute velocity of sprung mass without using the relative velocity while having lower system prices and a little energy requirement. In this paper, the system is realized in consideration to control strategy (sky-hook control, hybrid filter, etc.) and has been proved to have improvement of ride comfort effect by Quarter car and Vehicle test, respectively.<br/>
배준영(J.Y.Bae),김영범(Y.B.Kim),이두형(D.H.Lee),심재진(J.J.Shim) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently. Active suspension system with low-band type for passenger cars is developed to improve both ride comfort and handling. In this study. the height control with mode evaluation controller is proposed to resolve the problems such as maintaining vehicle posture. a sensitive speed and variable height adjustment. the results of test have confirmed that height of vehicle can be converged to a goal region.<br/> <br/>
승용차용 능동제어식 현가시스템의 개발(2); 실차 성능실험 및 결과
황요하(Y.Hwang),홍예선(Y.S.Hong),이종민(J.Lee),배준영(J.Y.Bae) 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Test results on prototype car equipped with active suspension system is reported. Control theory is explained first. Simulation for feasibility and parameter tuning, control module test using hydraulic exciter and test run. and performance evaluation of the test car are reported successively. Emphasis was put on modification of control theory which caused many unexpected problems in actual implementation.<br/>
1/4車 시험기를 이용한 능동현가계의 제어에 관한 연구
김영범(Y.B.Kim),배준영(J.Y.Bae),이두형(D.H.Lee),심재진(J.J.Shim) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Generally, active suspension system is divided with low band active suspension system and full active suspension system. This active suspension system is reported system which is satisfied with ride and handling by control of the vehicle motions( bounce, pitch and roll). Presently, a study of active suspension system is also within the country proceeding actively, Therefore, this paper describes the test results of gain variation using sky-hook control theory suggested by Karnopp.<br/>
회귀분석을 이 용한 ITO 코팅유리기판의 표면균일도와 운전변수의 상관관계 분석
김면희(M.H. Kim),이상룡(S.R. Lee),이태영(T.Y. Lee),배준영(J.Y. Bae) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
In recent year, OLED(organic light emitted display) is used as the next generation device of FPD. OLED have been replacing the flat panel display device such as LCD, STN-LCD and TFT because this device is more efficient, economic and simple than those FPD devices, and this need not backlight system for visualization. The performance and efficiency of OLED is related with surface defect of ITO coated glass substrate. The typical surface defect of glass substrate is nonuniformity and bad surface roughness. ITO coated glass substrate is destroied for inspection about surface roughness and non-uniformity. Generally detection of the defects in the surface for ITO coated glass substrate is dependent on operator"s experience. In this research, relationship between working parameter and surface non-uniformity is studied using regression analysis.