A dual stage inflator for an inflatable vehicle safety device includes a second stage combustion cup having a first member and a second member. The first and second members are formed separately from one another and cooperate to define an interior for receiving a second stage gas generant material.

Airbag systems for use in a vehicle that is operable in a manual-steering mode or an automated-steering mode are provided. In one embodiment, an airbag system includes a primary airbag installed in a dashboard of a vehicle. The primary airbag is configured to be deployed when a collision event is detected, and, when deployed, the primary airbag is configured to protect a person seated in a driver seat of the vehicle. the airbag system also includes an auxiliary airbag configured to be deployed when the collision event is detected. During operation of the vehicle in a manual-steering mode, the deployment of the auxiliary airbag is configured to reduce contact between the primary airbag and a steering wheel of the vehicle when the primary airbag is deployed from the dashboard.

The invention relates to an airbag (14) for unfolding between a vehicle part (10) and a vehicle occupant (18), comprising an impact wall (20) which, in the installed and unfolded state of the airbag (14), faces a vehicle occupant (18) and a circumferential wall (22) which is connected to the impact wall (20) and, in the installed and unfolded state of the airbag (14), extends between the impact wall (20) and the vehicle part (10), wherein the circumferential wall (22) is made with multiple layers, at least in some sections, and forms at least one annular tube (23) which delimits an annular inflatable first airbag volume (V1), and wherein a radially inner layer (26) of the circumferential wall (22), together with the impact wall (20), delimits an inflatable second airbag volume (V2) that is separate from the first airbag volume (V1). The invention further relates to an airbag module (12) having such an airbag (14).

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 vehicle airbag device includes: an inflator configured to generate gas when a first squib and a second squib are fired, respectively; an airbag including a main bag portion configured to inflate and deploy between an occupant seated in a passenger seat and an instrument panel and between the occupant and a windshield when the gas generated by the inflator is supplied into the airbag, and a center bag portion configured to project between the passenger seat and a driver seat from the main bag portion; and a controlling portion configured to control the inflator such that, when a head-on collision occurs, the second squib is fired after the first squib is fired, and when an oblique collision occurs, the second squib is fired after the first squib is fired and at a timing earlier than that when the head-on collision occurs.

A protection system comprises at least one inflatable safety structure, each associated with a gas generator that can be activated by an external command, wherein the external command comprises an electrical signal from an automated system that is responsible for the critical safety functions of a vehicle, corresponding to predictive information about an impact. The gas generator is configured to generate a gas over a time period such that the total inflation time of the inflatable structure is greater than 50 milliseconds. The inflatable structure may be waterproof.

A dual stage inflator for an inflatable vehicle safety device includes a second stage combustion cup having a first member and a second member. The first and second members are formed separately from one another and cooperate to define an interior for receiving a second stage gas generant material.

Airbag systems for use in a vehicle that is operable in a manual-steering mode or an automated-steering mode are provided. In one embodiment, an airbag system includes a primary airbag installed in a dashboard of a vehicle. The primary airbag is configured to be deployed when a collision event is detected, and, when deployed, the primary airbag is configured to protect a person seated in a driver seat of the vehicle. the airbag system also includes an auxiliary airbag configured to be deployed when the collision event is detected. During operation of the vehicle in a manual-steering mode, the deployment of the auxiliary airbag is configured to reduce contact between the primary airbag and a steering wheel of the vehicle when the primary airbag is deployed from the dashboard.

A roof airbag for vehicles and a control method to deploy the roof airbag are proposed. The roof airbag, which protects occupants by minimizing reduction of internal pressure of the airbag in an accident event in which a vehicle rolls over several times in sequence, includes: a main inflator and sub-inflator which generate gas; and a controller configured to ignite the main inflator to deploy an airbag cushion when a rollover accident of a vehicle occurs, and configured to ignite the sub-inflator to increase internal pressure of the airbag cushion when a secondary accident occurs following the primary rollover accident of the vehicle.

An inflator for generating inflation gases for a safety device includes a housing having an internal cavity including a combustion chamber and a filter chamber. A filter is disposed in the filter chamber. A separating member is disposed in the housing on a first axial side of the filter and separates the filter chamber from the combustion chamber. An insulating member is disposed in the filter chamber on a second axial side of the filter. The second axial side is opposite the first axial side. The separating member is coupled to the insulating member.