• Title, Summary, Keyword: New Car Assessment Program

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Safety Evaluation of Korean New Car Assessment Program - Side Impact (자동차 측면 충돌 안전도 평가 분석)

  • Shin, Jaeho;Yong, Gee Joong
    • Journal of Auto-vehicle Safety Association
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    • v.6 no.2
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    • pp.12-17
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    • 2014
  • The number of vehicle accidents related to the side impact has increased since 1990 in Korea, thus the side impact test has been performed as one of the major vehicle evaluations of the Korean New Car Assessment Program(KNCAP) in 2003. A total of 77 vehicles of eight different types(compact, small, semi-midsize, midsize, and large sedans and small, midsize, and large sports utility vehicles) were tested in side impact and side pole impact conditions. In this study, the head and thorax injury values(HICs and chest deflections) of the side impact tests performed between 2003 and 2013 were investigated in terms of vehicle type, test year, and test condition. The recent vehicles showed better safety performances(lower injury values) and similar injury patterns were obtained between side impact and pole side impact tests.

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Improvement of Passenger Airbag Based on the Injury Assessment of the 5th Percentile Female Dummy (작은 체형의 여성 승객을 고려한 조수석 에어백의 설계 개선)

  • Kwon, Yul;Kim, Kwon-Hee;Son, Chang-Kyu;Kim, Hyung-Il
    • Transactions of the Korean Society of Automotive Engineers
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    • v.20 no.5
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    • pp.1-7
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    • 2012
  • Automobile airbag deployment process has been studied with MADYMO software. Based on the FMVSS208 and USNCAP(United States New Car Assessment Program) regulations, four parameters were chosen for the design improvement with reference to the 5th percentile female passenger dummy: time to fire, vent hole size, tether length and tank test pressure of inflator. Sensitivity analyses based on orthogonal arrays show that enhanced protection of small females can be achieved with improved USNCAP rating within the boundary of FMVSS 208.

The Study on influence of test factors for WorldSID injury through AE-MDB side crash test (AE-MDB시험 시 인체모형 상해치에 대한 시험 인자 영향성 연구)

  • Sun, Hongyul;Han, Pyokyong;Oh, Eunkyung;Yoon, Ilsung
    • Journal of Auto-vehicle Safety Association
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    • v.7 no.1
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    • pp.7-12
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    • 2015
  • NCAP(New Car Assessment Program) makes vehicle manufacturer improve safety performance through free competition and customers guarantee vehicle selection by providing information of vehicle safety. That's why it is important not only to meet the regulation, but also to cope with NCAP. EuroNCAP(European New Car Assessment Program) side tests have conducted by using Progressive MDB and Euro SID II in order to reproduce crash test between two vehicles over 10 years. However various researches report that Progressive MDB and Euro SID II do not reflect evolving vehicle design, impact performance and biofidelity of human. Therefore EuroNCAP has the plan to conduct AE-MDB side crash test using WorldSID which is more evolved from 2015 by replacing Progressive MDB and EuroSID II. Automobile manufacturers need to develop safety performance for new test closely. This paper is to find test set-up parameters which affect into dummy injury instead of restraint system and to research on its tendency. It is processed with mini and small car to know influence as changing vehicle size and also analyzed by DFSS(Design for six sigma) which is one of optimization tools. DFSS is vaildated by simulating CAE with L18 orthogonal array of 6 control factors adjustable as EuroNCAP requirement.

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Consideration for the Vehicle Head Restraint Geometry Test Method (머리지지대 안전성평가에 관한 고찰)

  • Shim, So-Jung;Hwang, Duk-Soo
    • Transactions of the Korean Society of Automotive Engineers
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    • v.14 no.6
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    • pp.179-183
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    • 2006
  • Whiplash injuries of the neck are one of the most common injuries reported from automotive rear impacts. Whiplash injuries can be reduced by changing geometry of head restraint. Therefore, geometries of head restraint were evaluated according to the test procedures of the Korea New Car Assessment Program(KNCAP) to improve safety of head restraint. In this study, nine vehicle's head restraints were tested. As the test results, one head restraints is rated at "Marginal", three head restraints are rated at "Acceptable" level, and the last five head restraints are rated at "Good" level.

Durability Assessment of a Control Arm Using 1/4 Car Test (1/4차량 시험을 통한 상부 컨트롤 암의 내구성 평가)

  • Ha, Min-Soo;Son, Hwan-Jung;Kim, Jong-Kyu;Park, Young-Chul
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.9 no.6
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    • pp.16-20
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    • 2010
  • This study proposes a structural design method for the upper control arm installed at the rear side of a SUV. The weight of control arm can be reduced by applying the design. In this research, the former includes optimization technology, and the latter the technologies for selecting aluminum as a steel-substitute material. Strength assessment is the most important design criterion in the structural design of a control arm. At the proto design stage of a new control arm, FE (finite element) analysis is often utilized to predict its strength. In this study, the kriging interpolation method is adopted to obtain the minimum weight satisfying the strength constraint and durability criteria. The optimum results determined from the in-house program are compared with those of ANSYS WORKBENCH. The durability assessment is obtained by a index of fatigue durability and trial & error method, MSC. Fatigue program.

A study on Improved Evaluation Method of the car performance in the side impact of car accident (교통사고 측면충돌시 차량성능 평가방식 개선방안 연구)

  • Hong, Gyu-Gab;Jang, Mi-Ho;Jung, Ho-Young;Cho, Won-Cheol;Lee, Tae-Shik
    • 한국방재학회:학술대회논문집
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    • pp.462-467
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    • 2007
  • Recently, in Korea vehicle market, the proportion of SUV is increasing. However Korea SINCAP(Side Impact New Car Assessment Program) doesn't reflect this circumstance. This paper focused on improvement of Korea SINCAP by comparing IIHS(Insurance Institute of Highway Safety) side impact test protocol with Korea SINCAP.

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Experimental Study on a New Test Method for Pole Side Impact (새로운 기둥측면충돌 시험방법에 관한 실험적 연구)

  • Kim, Dea Up;Woo, Chang Gi
    • Journal of The Korean Society of Manufacturing Technology Engineers
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    • v.24 no.6
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    • pp.613-618
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    • 2015
  • In recent years, WorldSID has been continuously developed and investigated to be the representative biofidelic anthropomorphic test device (ATD) as well as the device for replacement of the current EuroSID-2. In Korea, the side impact accident is one of the major severe accidents in terms of the number of accidents and fatality. Since 2003, the side crash test with a speed of 50 kph in the perpendicular direction has been initiated as a safety standard with EuroSID-1 at the first stage. Simultaneously, a 55 kph impact test has been conducted as a part of Korean New Car Assessment (KNCAP). Currently, only EuroSIDE-2 is accepted as a regulatory tool for vehicle certification and KNCAP. The tests with WorldSID are conducted experimentally in order to use WorldSID of the KNCAP in near future.

Experimental Study on the Small Overlap Frontal Crash Test Method (국부정면충돌 시험방법에 관한 실험적 연구)

  • Kim, Dea Up;Woo, Chang Gi
    • Journal of The Korean Society of Manufacturing Technology Engineers
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    • v.26 no.2
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    • pp.205-213
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    • 2017
  • In order to improve occupant protection in frontal crash, the IIHS introduced a small overlap frontal crash test in 2012. When the front corner of a car collides with another car or object, such as utility pole the test replicated the sequence of events. Because occupants move simultaneously forward and toward the side of the vehicle this test is challenging for some airbag and safety belt designs. In the small overlap frontal test, a car travels at 64 km/h toward a rigid barrier. A hybrid III dummy is positioned in the driver seat. 25% of the total width of the car strikes the barrier on the driver side. After review of small overlap frontal test protocol and overall rating, six run-throughs were performed according to the original test method.