Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Characteristic Test of the Electro Mechanical Brake Actuator for Urban Railway Vehicles

도시철도용 전기기계식 제동장치의 특성시험

  • Kim, Min Soo (Metropolitan Transportation Research Center, Korea Railroad Research Institute) ;
  • Oh, Seh Chan (Metropolitan Transportation Research Center, Korea Railroad Research Institute) ;
  • Kwon, Seok Jin (New Transportation Systems Research Center, Korea Railroad Research Institute)
  • 김민수 (한국철도기술연구원 광역도시교통연구본부) ;
  • 오세찬 (한국철도기술연구원 광역도시교통연구본부) ;
  • 권석진 (한국철도기술연구원 신교통연구본부)
  • Received : 2016.05.09
  • Accepted : 2016.06.20
  • Published : 2016.07.01
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Abstract

The braking device in railway vehicles decelerates or stops the train by dissipating the thermal energy converted from kinetic energy into the air. Therefore, the brake system is crucial for safety. In this paper, we performed a study on an electromechanical brake actuator using an electrical motor as an alternative to pneumatic air cylinders to reduce the idle running time in braking, which subsequently increases braking distance, and to ensure reliable response characteristics. Especially, to analyze the response characteristics of the electromechanical brake actuator, we measure the delay time, response time and power consumption compared to the air cylinder. It is confirmed that the electromechanical brake actuator can reduce reaction time by 0.1 seconds (Braking Action) and 0.46 seconds (Brake Release) compared to the air cylinder.

Keywords

References

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