Consider of occupant injury mitigation through comparision between crash test results in KNCAP and real-world crsah

Kim, Siwoo; Park, Yohan; Park, Wonpil; Lee, Jaewan; Kang, Byungdo; Suh, Myungwon

Affiliations

¹Korea Automobile Testing & Research Institute (KATRI),

²Samsung Traffic Safety Research Institute, Republic of Korea

³School of mechanical Engineering, Sungkyunkwan Univ., Republic of Korea

Abstract

The objective of this study was 2-fold : the first, to compare with the joint probability of injury of the dummy seated on driver & passenger seat for introducing the FFRB(Full Front Rigid Barrier) impact test, ODB(Offset Deformable Barrier) frontal impact test and MDB(Moving Deformable Barrier) side impact test in KNCAP; and the second, to propose the direction of improving protocols of crash test in KNCAP(Korea new car assessment program) according to the review of real-world crash data in Korea.

The effectiveness of improvement for the injury criteria of dummy from introducing crash test in NCAP was reviewed by comparison with the average joint probability of injury for each vehicle in case of FFRB impact test, ODB frontal impact test and MDB side impact test. The average joint probability of injury for each vehicle was calculated by average of injury criteria for dummy response on driver and passenger seat. The analysis of real world crash data in Korea was used the data of domestic insurance company. In order to analyze of injuries severity through star rating of KNCAP, MAIS was used. The comparison of MAIS between 3- star and 4+ star rated vehicles case of frontal, offset frontal and side impact crash test in KNCAP was performed . It was reviewed that the reduction of the average joint probability of injury for dummy according to the implement of crash test in KNCAP. The average joint probability of injury on FFRB impact test is dropped gradually from 21.17% in 2003 to 11.21% in 2016. In case of ODB frontal impact test, the average value for each year value of tested vehicles fell to 8.43% in 2016 from 10.76% in 2009. Through the review of insurance company's data, frontal crash accidents, rate of MAIS3+ is 2.88% for vehicles that obtain 4+ star at KNCAP and 4.36% on 3- star. In ODB frontal impact test, rate of MAIS3+ is 2.62% for vehicles that obtain 4+ star at KNCAP and 14.28% on 3- star. In MDB side impact test, rate of MAIS3+ is 1.9% for vehicles that obtain 4+ star at KNCAP and 2.8% on 3- star.

The effectiveness of injury mitigation at FFRB impact test, ODB frontal impact test and MDB side impact test according to the implementation of KNCAP is demonstrated by the analysis of real-world crash data. And also the rate of MAIS3+ injury rated 4+ star vehicle is lower than 3- star in similar accident. Through this research, 4+ star rated vehicle is safer than 3- rated vehicle in Korea. In order to improve vehicle safety, female and child occupant safety will be introduced in crash test protocols from 2017. Also, the next roadmap will be considered in a near future to upgrade vehicle crash safety in Korea.

Links

URL: http://indexsmart.mirasmart.com/25esv/PDFfiles/25ESV-000182.pdf

Cited Works (5)

Year	Entry
2002	Kullgren A, Krafft M, Ydenius A, Lie A, Tingvall C. Developments in car safety with respect to disability: injury distributions for car occupants in cars from the 80’s and 90’s. In: Proceedings of the 2002 International IRCOBI Conference on the Biomechanics of Impact. September 18-20, 2002; Munich, Germany.
2005	Farmer CM. Relationships of frontal offset crash test results to real-world driver fatality rates. Traffic Inj Prev. March 2005;6(1):31-37.
2005	Gennarelli TA, Wodzin E, eds. The Abbreviated Injury Scale 2005. Barrington, IL: Association for the Advancement of Automotive Medicine (AAAM); 2005.
2001	Lie A, Kullgren A, Tingvall C. Comparison of Euro NCAP test results with Folksam car model safety ratings. In: Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 4-7, 2001; Amsterdam, The Netherlands.
2010	Kullgren A, Lie A, Tingvall C. Comparison between Euro NCAP test results and real-world crash data. Traffic Inj Prev. December 2010;11(6):587-93.