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Haenchen, Dietmar
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Feasible Steps towards Improved Crash Compatibility

Volkswagen AG-Dietmar Haenchen, Thomas Schwarz, Gareth Thomas, Robert Zobel
Published 2004-03-08 by SAE International in United States
Compatibility has been a research issue for many years now. It has gained more importance recently due to significant improvements in primary and secondary safety. Using a rigorous approach, combining accident research and theoretical scientific considerations, measures to improve vehicle-vehicle compatibility, with an emphasis on feasibility, were discussed.German accident research statistics showed that frontal impacts are of higher statistical significance than side impacts. Based on this and the high potential for improvement due high available deformation energy, the frontal impact configuration was identified as the most appropriate collision mode for addressing the compatibility issue. In side impacts, accident avoidance was identified as the most feasible and sensible measure.For frontal vehicle-vehicle impacts, both trucks and passenger cars were identified as opponents of high statistical significance. Based on the bulkhead concept, a theoretical range of survivable collision velocities for both impact configurations was calculated and the limitations discussed. A pre-requisite in each case was structural interaction. Structural interaction was identified as necessary between all collision partners including car - truck. This means the addition of adequate under-run…
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Issues in Automotive Safety Technology: Offset Frontal Crashes, Airbags, and Belt Restraint Effectiveness

John P. Smreker, Donald F. Huelke, Dietmar Haenchen
  • Special Publication (SP)
  • SP-1072
Published 1995-02-01 by SAE International in United States
Partial contents include: the effect of the variables age and sec on restraint system performance; experimental measurements of deploying pressure distribution on a passenger-side air-bag door; predictive techniques for airbag inflator exit properties; on airbag inflator grade designation - a five index grading system; new sensor concepts for reliable detection of side impact collisions; and the rationale and development of the offset deformable frontal impact test procedure.