Simulation experiments for the passenger injuries with different sitting positions in autonomous vehicle collisions
Frontal crash simulation experiments were made with a comparative analysis of the kinematics and loads of its occupants,to investigate the crash safety of occupants in autonomous vehicles with different sitting positions such as representative occupant attitudes(including variations in head,upper limbs and torso).The results show that in the frontal collision simulation experiment,the comprehensive injury risk of leaning passengers is higher than that of other postures.Compared to the conversational posture,the leaning posture resulted in a 45.5%increase in chest compression,more rib fractures,and a 48.8%increase in visceral organ strain.The left leaning posture significantly reduces the risk of injury,with a 49.1%decrease in head injury risk and a 14.4%decrease in chest injury risk.Therefore,the occupant injury can be reduced by adjusting the occupant posture before the vehicle collision,so as to improve the collision safety of autonomous vehicle.