Study on Occupant Out-of-position Displacement and Injuries Under AEB Braking

Abstract

In order to study the impact of autonomous emergency braking (AEB) intervention on vehicle safety, design a simplified trolley to simulate AEB braking and proved the difference between the dummy and the real human body in kinematic response. Through the out-of-position test of volunteers on the real vehicle, the factors affecting the out-of-position displacement were analyzed. The most important factor affecting out-of-position displacement was the peak braking deceleration, with the increase of the peak braking deceleration, the out-of-position displacement will increase, while increasing the initial speed under the same braking deceleration has little effect on out-of-position displacement. Total Human Model for Safety (THUMS) was used to simulated the occupant kinematics change during AEB braking and occupant injuries in frontal collision. Compared the occupant injuries with and without AEB braking, the performance of the current restraint system can not meet the requirements of occupant protection with AEB braking and the risk of occupant injuries was greatly increased.