SAE J2937_202110

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 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:1Determine the daylight opening2Identify target locations per the FMVSS226 Final Rule §5.2aTarget locations for all windows and daylight openingsbPerform the target elimination processcReconstitute the targets3Determine the zero-plane4In case of advanced glazing, determine if the glazing has to be part of the test and pre-brake it at a 75mm offsetaIf yes, than follow the procedure for pre-breaking the laminated glazing5Run the testaAt 5.6m/s with a 1.5s delaybAt 4.4m/s with a 6.0s delay