• 제목/요약/키워드: 능동헤드레스트

검색결과 3건 처리시간 0.017초

차량용 탑승자 보호 기술 (Automotive Occupant Protection Technologies)

  • 이성수
    • 전기전자학회논문지
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    • 제22권1호
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    • pp.223-226
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    • 2018
  • 최근 차량 사고로부터 탑승자를 보호하기 위해서 다양한 안전 기술이 집중적으로 개발되고 있다. 본 논문에서는 잠김 방지 브레이크 시스템, 견인력 제어 시스템, 제동력 배분 시스템, 전자 주행 안정 장치, 자동 긴급 브레이크, 에어백, 좌석벨트 프리텐셔너, 능동형 헤드레스트 등 다양한 차량용 탑승자 보호 기술을 살펴보고, 각 기술의 동작원리 및 구현에 대해 설명한다.

후방충돌시 승객보호를 위한 능동형 헤드레스트 개발에 관한 연구 (A Study on Development of an Active Headrest for the Passenger when Rear-end Collision)

  • 김동욱;김남균;고영호
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1996년도 춘계학술대회
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    • pp.327-330
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    • 1996
  • We investigated the possibility of preventing a passenger's whiplash injury by rear-end collision. We sought to prevent the whiplash injury by appling an active headrest system to a passenger A main factor in whiplash injury is the backward, rapid, passive, and negative acceleration of the head. Our results showed that the active headrest system does reduce the backward, rapid, passive, and negative acceleration of the head. As a conclusion, Our active headrest system is a useful equipment to prevent whiplash injury.

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좌석의 정음공간 형성을 위한 가상마이크로폰 기반 능동음향제어 기법 연구 (Active Sound Control Approach Using Virtual Microphones for Formation of Quiet Zones at a Chair)

  • 유석훈;김제관;이영섭
    • 한국소음진동공학회논문집
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    • 제25권9호
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    • pp.628-636
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    • 2015
  • In this study, theoretical and experimental analyses were performed for creating and moving the zone of quiet(ZoQ) to the ear location of a sitter by using active sound control technique. As the ZoQ is actively created at the location of the error microphone basically with an active sound control system using an algorithm such as the filtered-x least mean square(FxLMS), the virtual microphone control(VMC) method was considered to move the location of the ZoQ to around the sitter`s ear. A chair system with microphones and loudspeakers on both sides was manufactured for the experiment and thus an active headrest against the swept narrowband noise as the primary noise was implemented with a real-time controller in which the VMC algorithm was embedded. After the control experiment with and without the VMC method, the location variation of the ZoQ by analyzing the error signals measured by the error and the virtual microphones. Therefore, it is observed that the FxLMS with the VMC technique can provide the re-location of the ZoQ from the error microphone location to the virtual microphone location. Also it is found that the amount of the attenuation difference between the two locations was small.