An occupant protection system for a vehicle seat on which an occupant sits, the occupant protection system including: an acquiring unit that acquires information of at least one of a state of the vehicle seat, a state of the occupant seated on the vehicle seat, a traveling state of the vehicle, or an environment state of a periphery of the vehicle; a plurality of airbags disposed in correspondence with each portion of the occupant and inflated by supply of gas; a gas generator that generates the gas to be supplied to the airbags; and a control unit that, based on the information acquired by the acquiring unit, selects airbag out of the plurality of airbags, necessary to suppress the occupant from moving in an acting direction of inertial force from the vehicle seat, and that controls a supply amount of the gas to each airbag such that the selected airbag inflates.

An occupant protection system for a vehicle seat on which an occupant sits, the occupant protection system including: an acquiring unit that acquires information of at least one of a state of the vehicle seat, a state of the occupant seated on the vehicle seat, a traveling state of the vehicle, or an environment state of a periphery of the vehicle; a plurality of airbags disposed in correspondence with each portion of the occupant and inflated by supply of gas; a gas generator that generates the gas to be supplied to the airbags; and a control unit that, based on the information acquired by the acquiring unit, selects airbag out of the plurality of airbags, necessary to suppress the occupant from moving in an acting direction of inertial force from the vehicle seat, and that controls a supply amount of the gas to each airbag such that the selected airbag inflates.

Cool burning gas generant compositions for an automotive inflatable restraint system are provided that include a bismuth-containing compound selected from the group consisting of: bismuth citrate, bismuth subsalicylate, bismuth hydroxide, copper bismuth hydroxy nitrate, bismuth subcarbonate, bismuth suboxalate, and combinations thereof. The gas generant comprises at least one copper-containing component. The gas generant includes at least one oxidizer, fuel, and optional coolant. The maximum flame temperature at combustion (T.sub.c) of less than or equal to about 1700K (1,427° C.). The cool burning gas generant composition generates liquid phase combustion products making it suitable for use in a filterless inflatable restraint system. Copper and bismuth present in the cool burning gas generant composition react to form an alloy having a melting point at or near the maximum flame temperature at combustion (T.sub.c).

Cool burning gas generant compositions for an automotive inflatable restraint system are provided that include a bismuth-containing compound selected from the group consisting of: bismuth citrate, bismuth subsalicylate, bismuth hydroxide, copper bismuth hydroxy nitrate, bismuth subcarbonate, bismuth suboxalate, and combinations thereof. The gas generant comprises at least one copper-containing component. The gas generant includes at least one oxidizer, fuel, and optional coolant. The maximum flame temperature at combustion (T.sub.c) of less than or equal to about 1700K (1,427° C.). The cool burning gas generant composition generates liquid phase combustion products making it suitable for use in a filterless inflatable restraint system. Copper and bismuth present in the cool burning gas generant composition react to form an alloy having a melting point at or near the maximum flame temperature at combustion (T.sub.c).

[Problem] To provide a side airbag apparatus capable of quickly and properly restraining a passenger in the initial stage of deploying an airbag, along with a passenger protection apparatus including this side airbag apparatus. [Resolution means] The airbag employed in the present invention includes: a first chamber (C1) which houses the inflator and is deployed outside in the vehicle width direction of the frame side wall part; a second chamber (C2) which is deployed inside in the vehicle width direction of the frame side wall part; and a gas guide (100) arranged so as to surround the inflator inside the first chamber. In addition, the first chamber (C1) is deployed such that at least a portion thereof, as seen from the vehicle side, overlaps the frame side wall part. A first inner vent is formed at the boundary part between the gas guide and the first chamber, with gas introduced from the gas guide to the first chamber via this first inner vent. Moreover, a second inner vent is formed at the boundary part between the gas guide and the second chamber, with gas introduced from the gas guide to the second chamber via this second inner vent.

[Problem] To provide a side airbag apparatus capable of quickly and properly restraining a passenger in the initial stage of deploying an airbag, along with a passenger protection apparatus including this side airbag apparatus. [Resolution means] The airbag employed in the present invention includes: a first chamber (C1) which houses the inflator and is deployed outside in the vehicle width direction of the frame side wall part; a second chamber (C2) which is deployed inside in the vehicle width direction of the frame side wall part; and a gas guide (100) arranged so as to surround the inflator inside the first chamber. In addition, the first chamber (C1) is deployed such that at least a portion thereof, as seen from the vehicle side, overlaps the frame side wall part. A first inner vent is formed at the boundary part between the gas guide and the first chamber, with gas introduced from the gas guide to the first chamber via this first inner vent. Moreover, a second inner vent is formed at the boundary part between the gas guide and the second chamber, with gas introduced from the gas guide to the second chamber via this second inner vent.

A roof curtain airbag for a vehicle includes an airbag cushion that is expanded to a space between passengers seated on respective seats when a plurality of seats are arranged to face each other, so that a collision between the passengers is prevented and the passengers are protected from impact by the airbag cushion.

A roof curtain airbag for a vehicle includes an airbag cushion that is expanded to a space between passengers seated on respective seats when a plurality of seats are arranged to face each other, so that a collision between the passengers is prevented and the passengers are protected from impact by the airbag cushion.

A roof airbag for vehicles is proposed. The roof airbag includes: a main chamber configured to be deployed as gas is introduced therein through a diffuser; an overlap chamber into which the gas is introduced and configured to be deployed into a shape that overlaps the main chamber around the diffuser; and a support chamber into which the gas is introduced and configured to be deployed while overlapping a roof frame.

A roof airbag for vehicles is proposed. The roof airbag includes: a main chamber configured to be deployed as gas is introduced therein through a diffuser; an overlap chamber into which the gas is introduced and configured to be deployed into a shape that overlaps the main chamber around the diffuser; and a support chamber into which the gas is introduced and configured to be deployed while overlapping a roof frame.