Abstract
The mechanical properties of today's vehicle are investigated as a basis for favourable crash energy management solutions. Important parameters follow the similarity law of cauchy. Different concepts of inter-vehicular compatibility are discussed. The tolerable closing speeds depending on the mass ratio and accelerations of colliding vehicles are calculated using realistic data of deformation forces, human load tolerances and different restraint system characteristics. Engine effects and measures to reduce engine aggressiveness are investigated. Possible solutions for accident types other than frontal collisions are briefly discussed. (Author/publisher)