Occupant protection device and method for a vehicle

摘要

A seat cushion airbag unit 51 is provided at each seat and includes a seat cushion airbag 51a . The seat cushion airbag 51a is disposed in an inboard portion of a seat cushion 33 of the seat so as to support an inboard portion of buttocks of an occupant P in the seat. The seat cushion airbag 51a is changed from its inflated state from its shrunk state when the side crash or rollover of the vehicle 1 is predicted by a controller. Thereby, the occupant's head is moved toward the center of the vehicle 1 . Accordingly, the occupant protection device 50 can promptly move the occupant's head toward the center of the vehicle, preventing the head from hitting against the vehicle roof, at the vehicle side crash or rollover.