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황수환(Suhwan Hwang),김은수(EunSue Kim),이봉준(Bongjun Lee),김길주(Giljoo Kim),김동기(Donggi Kim),김승재(Seungjae Kim),이인호(Inho Lee) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
It is the essential technique to detect the position of passenger head before rear collision for minimizing the passenger neck injury. This research introduces the technique of measuring distance between the head and headrest using the electrostatic capacity sensor in the headrest. According to the sensor material, the detecting performance of sensor was investigated. And the reliability was also tested with the new developed test-bench. On the other hand, the new mechanism is applied to the pre-crash headrest for moving the headrest front-upward. When the distance between the head rest and passenger head is measured accurately, pre-crash headrest could be adjusted to most proper position for Whiplash protection. New developed headrests can access passenger heads close to 10㎜ within 0.8 second.