• 한국철도학회논문집
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• 제5권2호
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• pp.112-117
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• 2002

Reduction of noise level in the cabin of urban transit unit is an important issue to enhance the comfortability of passengers. It is made clear that a cause of increased noise level in cabin is the imperfect airtightness of entrance doors. In this study, the sliding-plug door system is developed to reduce the noise level of cabins by securing the airtightness of entrance door. The sliding-plug door system is composed of air-driven engine, swing arms, guide rails, guide rollers and locking devices. It is economical owing to using the previous door engine system. It is also adequate for the platform system of our subway station. It was tested to prove the reliability of system and was applied to standard urban transit unit. The effectiveness of noise reduction in cabin resulting form the sliding-plug door system was confirmed by test results.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2001년도 춘계학술대회 논문집
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• pp.162-169
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• 2001

There are many EMU lines in korea. But only one type has been applied to passenger side door. This type is so called "Pocket sliding type". This type has some week points. To begin with, it is not good for decreasing the noisy form the outside of carbody. And the second time, if some obstacles are put between sliding door, only driver can operate re-open door switch manually ill driver's cab. This type is so dangerous for passengers. So many people want to the new door type that have no defect. KRRI joined forces with ANT corporation for pneumatic plug door system. This type will be good for decreasing the noisy, passenger′s safe. The project was started at the last year on November and will be finished on June, this year In this paper, we will deal with the role of cylinder, planetary gear, door control unit, dynamic mechanism, and the report of FEM, type test. This paper will contribute to tile electric motor control plug door system.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.3086-3091
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• 2011

Many types of door system are used in the Electric Multiple Unit (EMU). The door system is categorized to the two types of door system, sliding door and plug door. The sliding door is widely used in the EMU but has weak point for the noise problem. The plug door has advantages for the noise reduction characteristic. Nowaday electric door system is widely used and motor is a main part of driving system in the door system. We have to know the exact driving position of door system to control proper operation of the door. Actually encoder or tachometer is used for the position controlling, but it makes price increase and failure increase. In this paper, we study and describe motor current calculation method to contol and know exact driving position of door system.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.2198-2199
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• 2011

The sliding door and plug door are the main types of door system in the EMU(Electric Multiple Unit). The sliding door is widely used in Korea but has weak point in the noise problem. In the low operation speed, the noise coming from outer side of the EMU is not an important factor. As the speed is higher than before, noise is increased and make an issue. The main cause of noise is the imperfect air tightness in the EMU. The plug door system has advantages for the noise reduction characteristic in the high speed area. Actually the noise level is an important factor for the passenger comfort. In this paper, we will describe the characteristic of electric plug door and functions of sub component.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.1584-1589
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• 2007

Plug-in type door is installed in recently designed tube. It is world wide trend to fulfill the customer's demand. But, plug-in door need widely gap between doorway and platform and it is raise an serious accident. Therefore, newly designed train must have safety device like a sliding step to prevent incident. This paper present about development process for sliding step. Trend of sliding step, development plan, course, technical description, and etc. will be included in this paper.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2001년도 춘계학술대회 논문집
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• pp.170-177
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• 2001

Since plug type passenger door has two motion modes, power transmission unit must be capable of plug-in or plug-out, and sliding mode. Complex planetary gear train is proposed, which is composed of two 2K-H, I type planetary gear units. For the proposed complex planetary gear train, ranges of addendum modification coefficients which would not lead to interferences is analyzed, and optimal addendum modification coefficients among these ranges which generate the maximum efficiency are presented. Based on the interference, efficiency and torque ratio analysis results, complex planetary new train is designed and manufactured.

• 한국철도학회논문집
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• 제4권2호
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• pp.55-61
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• 2001

Since the plug type passenger door has two modes of motion, a power transmission unit must be capable of plug-in or plug-out mode, and sliding mode. Complex planetary gear train is proposed, which is composed of two 2K-H, I type planetary gear units. For the proposed complex planetary gear train, ranges of addendum modification coefficients which would not lead to interferences are analyzed, and optimal addendum modification coefficients among these ranges which generate the maximum efficiency are presented. Based on the results of analysis on interferences, efficiencies and torque ratios, the specifications for the complex planetary gear train were determined. It has been shown by tests of the complex planetary gear train manufactured that the gear train worked well with good agreements of analysis.

• 전자공학회논문지SC
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• 제48권4호
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• pp.47-53
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• 2011

전동차 출입문은 포켓 슬라이딩 도어, 아웃 슬라이딩 도어, 플러그 도어로 구분된다. 현재 국내 전동차의 표준규격으로 제시되어 있는 포켓 슬라이딩 도어는 철도차량이 고속화됨에 따라 소음 및 외풍의 차단이 어려운 단점이 있으며, 아웃 슬라이딩 도어 역시 소음 및 외풍차단이 어려운 시스템이다. 반면에 플러그 도어는 최근 철도차량이 고급화됨에 따라 고속철도에 적용되던 출입문을 전동차에 적용하면서 쓰이게 된 도어시스템으로 승차감 개선에 소음이 중요한 위치를 차지함에 따라 소음에 강한 플러그 도어 시스템이 주목받고 있다. 이러한 이유로 차세대전동차에 적용할 목적으로 전기식 플러그 도어를 개발하여 시험 진행 중에 있다. 플러그 도어를 구성하는 하부 부품으로는 출입문 제어 장치 (DCU : Door Control Unit), 모터, 스크루 기어, 볼 너트, 레일, 리미트 스위치, 각종 전기 장치, 비상 수동 개폐장치, 코디네이션 바 등이 있는데 이중 DCU는 전동차 출입문을 개폐하기 위한 제어장치로 량당 8개인 전동차 출입문이 동시에 열리고 닫히기 위해서는 각 출입문간의 인터페이스가 필요하며, 승객의 승하차와 직접적으로 관련되어 있기 때문에 신뢰성 및 안전성 확보가 매우 중요한 시스템이다. DCU의 기능으로는 자동 문 여닫음 제어, 출입문 제어 및 장애 감지, 출입문 상태 제어, 저전압/고전압 감시 등이 있으며, 본 논문에서는 전기식 플러그 도어에 적용하기 위해 개발된 DCU의 기능, 개발요구사양, 시스템 구성 및 시험결과에 대해 논하고자 한다.

• 한국철도학회논문집
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• 제2권3호
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• pp.54-60
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• 1999

In this paper, design and construction process for the standardized electric motor car according to standard specification is described. Aluminum extrusion profiles and power and control system made domestically are used in the electric motor car. Also, plug-sliding door system for noise reduction and automatic train control system are developed and applied. Through the development of the electric motor car, most electric and control systems can be substituted by domestic standard systems, and safety and reliability of electric motor cars can be secured.