"Passive safety" means all measures which are necessary to protect vehicle occupants from injuries or to minimize the risk of injury. In addition to the low-deformation passenger compartment and the vehicle's deformation zones, restraint systems such as belt systems and airbags are among the essential protection systems within the passenger compartment. The development and optimization of these systems, taking into account the enormous variety of vehicle models, is a major challenge for automotive manufacturers and their suppliers. New legal requirements and more stringent consumer protection requirements (NCAP) lead to a constantly increasing number of necessary physical tests. In addition to modeling, the real test is required in the development phase for the verification and optimization of the components and structures. Crash simulation systems are also the most important development tools in the modern test lab of vehicle manufacturers or suppliers of restraint systems, seats and steering wheels to recreate real crash sequences or standardized crash pulses.