Abstract: In order to study the influence of autonomous emergence braking (AEB) involvement on the passive safety of vehicle, through volunteer's real car tests, with the help of driving robot and on-board high-resolution cameras, 24 groups of driver's posture motion data are collected under different braking deceleration and speed, with the changing rule of driver's forward displacement in the process of AEB analyzed in this paper. The results show that at the same initial braking speed, the forward displacement of driver increases with the rise of braking deceleration. Under smaller braking deceleration, the initial braking speed has little effects on the forward displacement of driver, while under larger braking deceleration, the forward displacement of driver exhibits an apparent fluctuation with the rise in initial braking speed, showing no obvious rule. Through a simulation on THUMS human model, the injuries of driver with and without AEB involvement in frontal crash condition are comparatively analyzed, with a conclusion drawn that under existing passive safety development strategy, the involvement of AEB may aggravate driver's injury.

Key words: safety integration, AEB, occupant posture, injury