Robustness evaluation of passive safety systems

Since 2005, computational robustness evaluations have been conducted in virtual product design at BMW AG in order to stochastically secure important performance variables. Besides identification of decisive input scatter and estimation of the expected spread of significant performance variables, the understanding of the transmission behaviour of scatter as well as the quality of prognosis of the numerical models could be increased.

Therefore, computational robustness evaluations is applied at an early stage of vehicle development and later at defined milestones. At the same time, the prognosis concerning scatter of important input variables e.g. testing conditions, components of suppliers as well as components of the complete vehicle are verified in order to secure the forecast quality of stochastic computations. Thereby, it is made sure that the understanding of the system concerning transmission of scatter and the knowledge about decisive input scatter are improved at the same time. The goal is to obtain the performance of the restraint systems as robust as possible at the highest safety level.