Forward mount compact passenger airbag module with passive gas modulation

Patent metadata

Field	Value
Publication number	US-11904787-B1
Application number	US-202318149409-A
Country	US
Kind code	B1
Filing date	Jan 3, 2023
Priority date	Jan 3, 2023
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

An airbag system for a vehicle includes an inflator, and a cushion operably connected to the inflator including a plurality of sealed cushion segments interconnected by a plurality of cushion joints. The activation of the inflator dispenses a flow of inflation gas into the cushion to sequentially inflate the plurality of sealed cushion segments from a stowed state to a deployed state. A passenger compartment of a vehicle includes an instrument panel including at least an upper panel surface and a downward panel surface, and an airbag system located in the instrument panel.

First claim

What is claimed is:

1. An airbag system for a vehicle, comprising:
an inflator; and
a cushion operably connected to the inflator including a plurality of sealed cushion segments interconnected by a plurality of cushion joints;
wherein the activation of the inflator dispenses a flow of inflation gas into the cushion to sequentially inflate the plurality of sealed cushion segments from a stowed state to a deployed state;
wherein at at least one cushion joint of the plurality of cushion joints, a first sealed cushion segment extends in a first direction from the at least one cushion joint, a second sealed cushion segment extends in a second direction from the at least one cushion joint, and a third sealed cushion segment extends in a third direction from the at least one cushion joint;
wherein the first sealed cushion segment and the second sealed cushion segment define a first acute angle therebetween; and
wherein the second sealed cushion segment and the third sealed cushion segment define a second acute angle therebetween.

2. The airbag system of claim 1 , further comprising one or more internal vents disposed in the plurality of sealed cushion segments.

3. The airbag system of claim 2 , wherein the one or more internal vents are disposed at the plurality of cushion joints.

4. The airbag system of claim 3 , wherein the one or more internal vents are one or more slits in a separator wall between adjacent sealed cushion segments of the plurality of sealed cushion segments.

5. The airbag system of claim 1 , further comprising a housing in which the cushion is disposed when in the stowed state.

6. The airbag system of claim 5 , wherein the housing includes a door extending across a door opening, the cushion extending through the door opening when in the deployed state.

7. A passenger compartment of a vehicle, comprising:
an instrument panel including at least an upper panel surface and a downward panel surface; and
an airbag system disposed in the instrument panel, including:
a housing;
an inflator disposed in the housing; and
a cushion operably connected to the inflator and disposed in the housing when in a stowed state, the cushion including a plurality of sealed cushion segments interconnected by a plurality of cushion joints;

wherein activation of the inflator dispenses a flow of inflation gas into the cushion to sequentially inflate the plurality of sealed cushion segments from the stowed state to a deployed state;
further comprising a screen extending upwardly from the upper panel surface and an airbag housing door and door opening located in the upper panel surface, wherein the airbag housing door and door opening are disposed between the screen and a windshield of the vehicle.

8. The passenger compartment of claim 7 , wherein at least one cushion segment of the plurality of sealed cushion segments extends along the upper panel surface.

9. The passenger compartment of claim 7 , wherein at least one cushion segment of the plurality of sealed cushion segments extends along the downward panel surface.

10. The passenger compartment of claim 7 , wherein at least one cushion segment of the plurality of sealed cushion segments extends across the screen.

11. The passenger compartment of claim 7 , wherein at least one cushion segment of the plurality of sealed cushion segments is aligned with an expected location of the center of gravity of one of a head or torso of a vehicle passenger.

12. The passenger compartment of claim 7 , further comprising one or more internal vents disposed in the plurality of sealed cushion segments.

13. The passenger compartment of claim 12 , wherein the one or more internal vents are disposed at the plurality of cushion joints.

14. The passenger compartment of claim 13 , wherein the one or more internal vents are one or more slits in a separator wall between adjacent sealed cushion segments of the plurality of sealed cushion segments.

15. A vehicle, comprising:
a vehicle body defining a passenger compartment therein;
an instrument panel extending at least partially across the passenger compartment, the instrument panel including at least an upper panel surface and a downward panel surface; and
an airbag system disposed in the instrument panel, including:
a housing;
an inflator disposed in the housing; and
a cushion operably connected to the inflator and disposed in the housing when in a stowed state, the cushion including a plurality of sealed cushion segments interconnected by a plurality of cushion joints;

wherein activation of the inflator dispenses a flow of inflation gas into the cushion to sequentially inflate the plurality of sealed cushion segments from the stowed state to a deployed state;
further comprising a screen extending upwardly from the upper panel surface and an airbag housing door and door opening located in the upper panel surface, wherein the airbag housing door and door opening are disposed between the screen and a windshield of the vehicle.

16. The vehicle of claim 15 , wherein at least one cushion segment of the plurality of sealed cushion segments extends across the screen.

17. The vehicle of claim 15 , wherein at least one cushion segment of the plurality of sealed cushion segments is aligned with an expected location of the center of gravity of one of a head or torso of a vehicle passenger.

18. The vehicle of claim 15 , further comprising one or more internal vents disposed in the plurality of sealed cushion segments.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Chavez Spencer William

Classifications

• B60R21/26

  characterised by the inflation fluid source or means to control inflation fluid flow {(arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10)} · CPC title

• B60R21/2334

  Expansion control features · CPC title

• B60R21/231

  characterised by their shape, construction or spatial configuration · CPC title

• B60R21/205 Primary

  in dashboards · CPC title

• B60R21/215 Primary

  characterised by the covers for the inflatable member {(B60R21/2176 takes precedence)} · CPC title