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Electronically Controlled Viscous Cooling Fan Clutch in the Vehicle
이만형,김명국,박형규,이길수,전호환 한국정밀공학회 2011 International Journal of Precision Engineering and Vol. No.
This paper presents on the development of an electronically controlled viscous cooling fan clutch actuator. Improvement in energy efficiency has been achieved by automation of the engine control system and enhancement of engine cooling systems. The engine cooling system uses On/Off viscous cooling fans that are applicable to wide range of engine loads with efficient energy consumptions. Depending on the temperature of the engine and the PWM signals, the power input and speed of the cooling fan automatically controlled by engine management system (EMS). Test results on the fan speed control according to the engine temperature are given in this paper.

이만형,백운보,이권순,Lee, Man-Hyung,Baek, Woon-Bo,Lee, Kwon-Soon 한국정밀공학회 1992 한국정밀공학회지 Vol. No.
The heavy vibrations of vehicles on the severe off-road environment degenerate the stabilization proformance of the gunner primary sight. To improve the stabilization performance, the dynamic equations of the gunner primary sight were derived, and the stabilization systems were designed using VSC methods. The performances were compared with the Lead/Lag scheme. In the nonlinear simulation including real disturb ances and couloumb friction, it is shown that the VSC methods exhibit more effective stabilization.
이만형 대한전기학회 1984 전기의 세계 Vol.33 No.1
전자공업은 방위산업발달에 획기적인 역활을 담당하고 있으며, 특히 전략적 $C^{3}$I (Command, Control, Communication and Intelligence) 개념을 도입하여, 국가방위를 위한 연구가 미국의 여러 대학들과 국방성 산하 연구기관에서 활발히 진행되고 있다. 이 글에서는 $C^{3}$I 에 대한 개략적인 개념을 소개하고, 추계학적 (Stochastic) 관점에서 $C^{3}$I 가 실전을 위하여 어떻게 응용되고 있는 가를 고찰하기 위하여 최근에 발표되고 있는 비선형필터링(Nonliner Filtering), 적응형필터링(Adaptive Filtering), 최적제어 문제들을 소개하고자 한다.