a. Series II BioRID tests (BASt)

Presentation from Humanetics covering H-III 50th Male Rear Impact repeatability. This had been presented at an earlier TEG meeting and is available from –
  https://www2.unece.org/wiki/download/attachments/4064167/TEGID-14-05-1e.pdf
  https://www2.unece.org/wiki/download/attachments/4064167/TEGID-14-04-2e.pdf
  https://www2.unece.org/wiki/download/attachments/4064167/TEGID-14-04-1e.pdf

The chair thanked Mr Lorenz for the work done at BASt, and Mr Depinet for his analysis, which allowed an improved understanding of the current test tool (HIII) allowing BioRID’s performance to be put into context. He questioned what would be the outcome if existing tools were scrutinised in the way that BioRID had been and whether current ambitions are realistic. Mr Jensen observed that all new tools are subject to similar scrutiny, including WorldSID and Q.

Presentation from Zine Ben Aoun (Chrysler) all available from the TEG website -
https://www2.unece.org/wiki/display/trans/BioRID+TEG

Analysing the test data from the repeatability dummy work and specially highlighting where repeatability was good and poor.

To summarise –

1. Still feel that the dummy needs further improvement, unless these channels not given good results are not used.
2. Can the correct level of “materials” bumpers, Jackets etc. be maintained?
3. Need to ensure the pulse used does not cause an issue with other tests the manufacturers need to carry out for NCAP/Regulatory.

In response the chair observed that the GTR7 group has specified, and will need to specify in the new regulation, the build level of BioRID. It has also set out clear controls primarily on the Pelvis, Jacket and Bumpers that can be maintained through dummy certification or other requirements in the Regulation.

He did not consider that the GTR7 group has to be constrained in any way by the need to ensure the BioRID’s use in other programmes such as NCAP or when using other pulses.

However, he agreed that it would be appropriate to make clear in the preamble to the revised GTR that recommendations for BioRID’s use were set in the context of the defined regulatory use and should not be interpreted as countenancing its application under other conditions.

Responding to questions on certification of Pelvis, bumpers etc. Mr Depinet advised that that dynamic pelvis and jacket tests were already in process, including further testing their R&R.

In addition, backup tests (quasi static) are being written to double check these components.

He reconfirmed that static bumper tests (performed while the bumpers are in situ) are under development and that results will be posted to the group when possible and that further tests are ongoing to test the effects of a change in bumper stiffness – hoping for results by June TEG meeting.

He was asked if it is possible for them to test how fast the bumpers age – answer is that it will take time, but evidence is that over a couple of years there is little change in terms of aging. Over-exercising (leading to plastic deformation) the materials tends to be a greater problem, but if a test is in place to measure this it can be mitigated.