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전공식 콘트롤 밸브 Positioner 용 Magnet Unit의 해석
김성재(S. J. Kim),김지원(J. W. Kim),조순철(S. T. Chung),정선태(S. Jo),유형근(H. -K. Yoo),전찬구(C. -G. Jeon),고택범(T. -B. Koh) 한국자기학회 1997 韓國磁氣學會誌 Vol.7 No.6
We analyzed an important part of control valve, magnet unit, which is used to control the fluid. Magnetic circuit which is composed of magnet and yoke is analyzed using finite element method. Then, flux density and coil force were calculated and compared with those of measured. According to the simulation results, the gap field, force constant, and permeance coefficient were 3~5 kG, 27.5 N/A, 22.1, respectively, which corresponded resonably well with the measured values. We also obtained reluctance factor of 1.1 and fringing factor of 1.4 by simulation.
정연구(Y.K.Jeong),김동룡(D.R.Kim),장운성(E.S.Jang),문필수(P.S.Moon),김건상(K.S.Kim),황덕배(D.B.Hwang),오경규(K.K.Oh),고택범(T.B.Koh) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_1
A new steering angle sensor which is composed of multi-turn angular potentiometer and encoder has been developed. This sensor can detect absolute steering angle over the range from -540 degree to +540 degree and output encoder signal which can be used as a control input signal. Applied to 4WS vehicle this sensor shows good performance and it also gives important information to ECU for checking its failure state.<br/>