1997-02-24

Development of an Electronic Belt Fit Test Device 971137

The purpose of this project was to develop and validate a computer-based version of the Belt Fit Test Device with a view towards exploring the potential of this technology to improve belt fitment for the general occupant population. The electronic BTD was initially developed and validated against two seats using the Transport Canada seat simulator. Preliminary validation indicated good correspondence between computed and measured BTD co-ordinates. The electronic BTD was then validated in ten vehicles. In total, 40 BTD scores were computed using the electronic BTD and compared with actual BTD values. In 30 of the 40 comparisons, the discrepancy between measured and computed values was less than one centimetre. In terms of test performance using the pass/fail criteria developed for the BTD, 37 of the 40 comparisons were in agreement. However, a number of refinements have been identified which could further improve the seat belt algorithm and the overall usefulness of the model.

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