Browse Standards J2937_201604
Current ISSUED 2016-04-28

Linear Impact Procedure for Occupant Ejection Protection J2937_201604

The objective of this document is to enhance the test procedure that is used for ejection mitigation testing per the NHTSA guidelines as mentioned in the FMVSS226 Final Rule document (NHTSA Docket No. NHTSA-2011-0004).
The countermeasure for occupant ejection testing is to be tested with an 18kg mass on a guided linear impactor using the featureless headform specifically designed for ejection mitigation testing.
SAE does not endorse any particular countermeasure for ejection mitigation testing. However, the document reflects guidelines that should be followed to maintain consistency in the test results. Examples of currently used countermeasures include the Inflatable Curtain airbags and Laminated Glass.
The testing procedure is as follows:
  1. 1
    Determine the daylight opening
  2. 2
    Identify target locations per the FMVSS226 Final Rule §5.2
    1. a
      Target locations for all windows and daylight openings
    2. b
      Perform the target elimination process
    3. c
      Reconstitute the targets
  3. 3
    Determine the zero-plane
  4. 4
    In case of advanced glazing, determine if the glazing has to be part of the test and pre-brake it at a 75mm offset
    1. a
      If yes, than follow the procedure for pre-breaking the laminated glazing
  5. 5
    Run the test
    1. a
      At 5.6m/s with a 1.5s delay
    2. b
      At 4.4m/s with a 6.0s delay
J2937_201604
2016-04-28
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