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

Journal Of Automotive Safety And Energy ›› 2014, Vol. 5 ›› Issue (01): 52-57.DOI: 10.3969/j.issn.1674-8484.2014.01.006

• Automotive Safety • Previous Articles     Next Articles

Sled test design for ODB crash tests by using restraint system simulation analysis

ZHAO Hui1, XU Xiaoyun2*, SHAO Yiming2,WANG Zhi1   

  1. 1. State Key Laboratory of Vehicle NVH and Safety Technology, Vehicle Development Center, Chang’an Motor
    Company, Chongqing 401120, China;
    2. Chongqing Jiaotong University, Chongqing 400074, China)
  • Received:2013-12-03 Online:2014-03-25 Published:2014-04-08

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Abstract: A kind of offset sled tests was designed to resemble whole-vehicle ODB (offset deformable barrier)
crash tests. A CAE (computer aided engineering) model was built by using MADYMO software for the driver side
restraint system of a Chang’an Motor’s car. The model was verified to simulate vehicle crash tests with 40% ODB
at a speed of 64 km/h. The injury parameters of the Hybrid Ⅲ 50th dummy were simulated and analyzed. Two
variables, the initial fixed rotation angle of sled and the sled acceleration curve, were optimized and determined
by using the CAE analysis in comparison with vehicle tests. The results show that the injury curves from the
occupant’s head and chest in the sled tests and from the vehicle tests are close each other in the rate of more
than 80%. Therefore, the designed sled test set up provides a new method to replace the whole vehicle crash tests in OBD.

Key words: vehicle crash safety, offset deformable barrier(ODB), sled tests, restrain systems, MADYMOsoftware

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