Welcome to Journal of Automotive Safety and Energy,
汽车安全与节能学报

Journal of Automotive Safety and Energy ›› 2015, Vol. 6 ›› Issue (04): 360-364.DOI: 10.3969/j.issn.1674-8484.2015.04.008

• Automotive Safety • Previous Articles     Next Articles

Effects of abdomen block stiffness on female occupant injuries and submarining trend

ZHANG Jinhuan1, LI Hao1, ZHOU Yong1, FU Hailong1, HUANG Yang1, XIAO Lingyun2, HU Wenhao2, DONG Honglei2   

  1. 1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China ；
    2. Defective Products Administration Center, General Administration of Quality Supervision, Inspection and
    Quarantine of the People's Republic of China (AQSIQ), Beijing 100101, China
  • Received:2015-08-17 Online:2015-12-25 Published:2015-12-28

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Abstract:

The support leg of child restraint system (CRS) is an anti-reversal equipment of the ISOFIX type
CRS. However, the misuse of the equipment by consumers is very common. Several sled tests were carried
out to analyze the influence of the support leg misuse on the safety performance of CRS quantitatively, using
the P-series 3-year-old (P3) dummy with different layouts of the support leg, and the injury values of the dummy
under both normal conditions and misused conditions were compared. The increase of each injury value of the
dummy under the misused condition was analyzed with the simulation in the environment of MADYMO. The trial results
show that the head forward excursion, the HIC head injury criteria, and the chest resultant 3-ms acceleration of
the dummy increases by 14.3%, 37.2% and 37.3% respectively at most when the support leg is misused.

Key words:  vehicle passive safety, child restraint system (CRS), ISOFIX type CRS, support leg, frontal crash, MADYMO simulation