정면 모의충돌시험에서 운전자 흉부가속도 유형에 따른 조향핸들과의 흉부접촉에 대한 연구

The increasing number of vehicles has given rise to frequent traffic accidents. The safety become one of the most important factor for customers to purchase a car. To meet customers' needs, NCAP(New Car Assessment Program) test is performed in many country such as US, Korea, and Europe. EuroNCAP performance becomes important to Korean car makers as the number of exporting vehicle to Europe market increases. The assessment of EuroNCAP frontal crash test includes the criteria of dummy injuries, vehicle measurements of deformation and the subjective modifier. Among the subjective modifier. the Chest Contact Modifier is one of the most ambiguous modifier because of difficulties in getting sufficient clues. In this paper, sled test was carried out using KNCAP full frontal crash pulse to analyze shape patterns of chest acceleration pulse which is one of the information of chest contact modifier. The test result was showed that four patterns of obscure pulse shape in vehicle crash test were categorized and these pulse patterns were clearly revealed to be occurring chest contact or not.