Study on Influencing Factors of Crash Compatibility in Passenger Vehicle Front-to-side Impacts

Crash compatibility has been developed as the most potential safety technology in the field of passive safety,for it can describe the crash accidents better than other technologies in real world.This paper,taking the front-to-side crash compatibility as the studying objective,conducted front-to-side impact simulation tests and used crash mechanics to evaluate crash compatibility for passenger vehicles.Meanwhile,main factors affecting self-protection and aggressivity were studied,which includes mass ratio,front-end rigidity of vehicle crush,and vehicle geometry characteristic.The research indicates that the key factor affecting crash compatibility is the mass ratio;decreasing the front-end crush rigidity and the primary energy-absorbing structure position of striking vehicle and increasing the contact area of vehicle crashing can improve the crash compatibility(including crashworthiness and aggressivity),and thus the injury risk of occupants could be reduced.