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Study of Examples for Air Bag Non-deployment Including Rear Collision and Failure Phenomenon by Damage of Control Parts in Vehicle Air Bag

자동차 에어백의 제어부품 불량에 의한 고장현상 및 후방 추돌에 관련된 에어백 미전개에 대한 사례 연구

  • Received : 2012.10.30
  • Accepted : 2012.12.27
  • Published : 2012.12.31

Abstract

The purpose of this paper is to study the failure cases in relation to system of Air Bag in vehicle happened in the field. In the first example, it was separated the soldering parts connected the wire pin between air bag module and clock spring of air bag. Whenever the pin shake by the car's vibration, the driver verified the malfunction phenomenon appeared air bag warning lamp on instrument panel in front of driver's seat. in car inside room. The second example, it verified the warning lamp lighting phenomenon of air bag by produced the circuit plate non-contacting of single an element in air bag electronic control unit. The third example, it verified the light of air bag warning indicator lamp by separated with soldering parts connecting inner pin and resistance terminal of seat belt pretensioner using passenger seat. The fourth example, when the passenger car crash a back of truck, the former bumper get jammed under the latter as the roof height of car low less than that. Therefore, the impact of Car's collision verified that don't transfer with body frame of vehicle because of no attachment impact sensor in it.

이 논문의 목적은 현장에서 발생되는 자동차 에어백 시스템의 고장사례를 모아 분석하고 연구하는 것이다. 첫 번째 사례에서는 에어백 시스템의 클럭 스프링과 에어 백 모듈 사이 배선 핀의 납땜부가 이탈되어, 배선 접촉불량에 의해 핀이 흔들릴 때마다 에어백의 작동불량 현상이 발생되는 것을 확인하였다. 두 번째 사례에서는 에어백 컴퓨터 내부의 단품 소자의 손상으로 인해 에어백 작동불량 현상이 발생된 것을 확인하였다. 세 번째 사례에서는 조수석 시트 벨트 프리텐셔너(pre-tensioner)의 내부 핀과 저항을 연결해 주는 납땜부 이탈로 인해 에어백 경고등이 점등된 것을 확인하였다. 네 번째 사례에서는 승용자동차가 화물자동차의 후면을 추돌하였을 때 때 범퍼는 상대편 차량보다 낮아 아래로 끼어들게 된다. 이 때 사고의 충격은 차량의 프레임부분에 전달되지 않기 때문에 충격센서가 설치된 프레임부분에 충격이 적게 전달되어 에어백이 작동하지 않은 것을 확인하였다.

Keywords

References

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