US Patent 11685329 Occupant protection system and method including seatback

A seat for a vehicle may include a seatback including one or more inflatable bladders that may be configured to deploy in response to a triggering signal indicative of a change of velocity, collision, or predicted collision event. As at least a portion of the back of an occupant of the seat pushes against a front surface of the seatback due to the event, the one or more inflatable bladders compress at least partially the comfortable foam or comfort material in the seatback and expedite engagement of the energy absorbing material.