A passenger airbag inflator for a vehicle includes: a housing having a first gunpowder therein, including a vent hole, and communicating with an airbag cushion; a first chamber located in a first side inner space of the housing, having a first booster and a first igniter, and configured to be triggered forwardly when the first igniter is ignited; and a second chamber located in a second side inner space of the housing, having a second booster and a second gunpowder, including a second igniter, and configured to be triggered forwardly when the second igniter is ignited.

The invention relates to an overigniting protection device (40) for a multi-stage gas generator (10), comprising a combustion chamber limiting element (34) for limiting a combustion chamber (30) of a second ignition stage (14) of the gas generator (10) as well as an overigniting protection element (38) which is arranged on a side of the combustion chamber limiting element (34) remote from the combustion chamber (30), wherein the overigniting protection element (38) covers the side of the combustion chamber limiting element (34) remote from the combustion chamber (30), wherein the overigniting protection element (38) is tightly connected to the combustion chamber limiting element (34) via a mounting portion (42) and wherein the overigniting protection element (38) is substantially plate-shaped or completely covers the side of the combustion chamber limiting element (34) remote from the combustion chamber (30). Furthermore, the invention relates to a second ignition stage (14) of a multi-stage gas generator, a gas generator (10) and an airbag module comprising a gas generator (10).

A gas generator, includes an igniter, a housing provided with a gas discharge port, and including a combustion chamber to burn a gas generating agent, the igniter being shifted from a center of a cluster of the gas generating agent, an isolating part surrounding at least a portion of the cluster of the gas generating agent, and forms, between the isolating part and a predetermined area, a gas flow space serving and a plurality of communicating parts that are provided in the isolating part and connect the combustion chamber and the gas flow space, a portion of the plurality of communicating parts allowing a combustion product generated by combustion of the gas generating agent disposed proximal to the igniter to flow into the gas flow space, and another portion of the plurality of communicating parts allowing a combustion product flowing through the gas flow space to flow out toward the gas generating agent disposed distal to the igniter.

A gas generator, includes an igniter, a housing provided with a gas discharge port, and including a combustion chamber to burn a gas generating agent, the igniter being shifted from a center of a cluster of the gas generating agent, an isolating part surrounding at least a portion of the cluster of the gas generating agent, and forms, between the isolating part and a predetermined area, a gas flow space serving and a plurality of communicating parts that are provided in the isolating part and connect the combustion chamber and the gas flow space, a portion of the plurality of communicating parts allowing a combustion product generated by combustion of the gas generating agent disposed proximal to the igniter to flow into the gas flow space, and another portion of the plurality of communicating parts allowing a combustion product flowing through the gas flow space to flow out toward the gas generating agent disposed distal to the igniter.

A variable control apparatus for an airbag of a vehicle includes: a plurality of tethers each of which having one side coupled to a front sheath among a plurality of sheaths of an airbag cushion, each of the plurality of tethers formed to have a length shorter than a distance between the front sheath and a rear sheath when the airbag cushion is fully deployed; a release mechanism provided at a rear sheath side of the airbag cushion, connected to the respective other sides of the plurality of tethers, and selectively releasing a tether among the plurality of tethers upon an operation of the release mechanism; and a controller configured to variably control a deployment shape of the airbag cushion by operating the release mechanism based on a collision direction of the vehicle, a seat state of a seat of the vehicle, or a sitting posture of a passenger in the vehicle.

A variable control apparatus for an airbag of a vehicle includes: a plurality of tethers each of which having one side coupled to a front sheath among a plurality of sheaths of an airbag cushion, each of the plurality of tethers formed to have a length shorter than a distance between the front sheath and a rear sheath when the airbag cushion is fully deployed; a release mechanism provided at a rear sheath side of the airbag cushion, connected to the respective other sides of the plurality of tethers, and selectively releasing a tether among the plurality of tethers upon an operation of the release mechanism; and a controller configured to variably control a deployment shape of the airbag cushion by operating the release mechanism based on a collision direction of the vehicle, a seat state of a seat of the vehicle, or a sitting posture of a passenger in the vehicle.

A restraint system includes an instrument panel having an exterior panel directed downward, an airbag having an uninflated position behind the exterior panel and having a left chamber and a right chamber, a left inflator coupled to the left chamber, a right inflator coupled to the right chamber, and a controller programmed to selectively activate each inflator to one of a high output and a low output based on an impact angle.

A restraint system includes an instrument panel having an exterior panel directed downward, an airbag having an uninflated position behind the exterior panel and having a left chamber and a right chamber, a left inflator coupled to the left chamber, a right inflator coupled to the right chamber, and a controller programmed to selectively activate each inflator to one of a high output and a low output based on an impact angle.

The gas generator includes an igniter, a container including a container body and a lid formed relative to the container body and configured to contain a transfer charge and a housing configured to contain the igniter and the container, a predetermined region in the housing adjacent to the lid of the container being filled with a gas generating agent to be burned by a combustion product of the transfer charge burned by actuation of the igniter. The lid includes a frangible section configured to be capable of being ruptured by pressure applied by a combustion product generated by combustion of the transfer charge and a strong connection section configured to be capable of maintaining a connected state with the container body even in a case that pressure is applied by the combustion product.

The invention relates to an airbag module (12) comprising a restraint airbag (30) which is inflated in a situation of restraint and, in an inflated state, has a restraining effect on an occupant (16), and at least one backup member (36, 36a, 36b) which, in a restraining state, is at least in portions in contact with the inflated restraint airbag (30) and is configured so that it backs the restraint airbag (30) and in particular absorbs a force (F) applied to the restraint airbag (30) by contacting a vehicle occupant (16), wherein, in the inflated state, the restraint airbag (30) is interposed between the backup member (36, 36a, 36b) and the vehicle occupant (16), wherein the backup member (36, 36a, 36b) is arranged, in an initial state, on or in the airbag module. The invention also relates to a vehicle seat and a vehicle comprising an airbag module according to the invention.