Curtain airbag

1. A curtain airbag assembly for a vehicle, comprising:

an inflatable curtain airbag configured to prevent egress of an occupant out of a window during a collision or rollover event,

wherein, when the curtain airbag is inflated, the inflated curtain airbag includes:

a bottom edge extending along a majority of a bottom of the inflated curtain airbag that extends toward a bottom edge of the window and ends before reaching a bottom edge of the window;

an outer edge comprising an upper edge portion and a lower edge portion, wherein the upper and lower edge portions extend towards a side edge of the window and end before reaching the side edge of the window;

at least a first tab inflatable extension extending below the bottom edge of the curtain airbag, a bottom edge of the first tab inflatable extension extending below the window; and

a second tab inflatable extension extending outward from the outer edge and between the upper and lower edge portions, a distal edge of the second tab inflatable extension extending beyond the side edge of the window.

2. The curtain airbag assembly of claim 1 , wherein a distance the inflated curtain airbag extends below a window sill is greater than a radius of curvature of the inflated curtain airbag.

3. The curtain airbag assembly of claim 1 , wherein the second tab inflatable extension is disposed at a central edge part of the outer edge.

4. The curtain airbag assembly of claim 1 , further comprising an inflator to inflate the curtain airbag.

5. The curtain airbag assembly of claim 4 , wherein the inflator inflates the first and second tab inflatable extensions.

6. The curtain airbag assembly of claim 1 , wherein the curtain airbag includes non-inflated areas, and wherein the non-inflated areas comprise non-circular shapes.

7. The curtain airbag assembly of claim 1 , wherein a thickness of the inflated curtain airbag is at least 1.5 inches.

8. The curtain airbag assembly of claim 1 , wherein a width of the inflated curtain airbag is in a range of 2.75 inches to 6.0 inches.

9. The curtain airbag assembly of claim 1 , wherein the inflated curtain airbag has a minimum cushion pressure to inflated curtain airbag width ratio of 0.1 kPa/mm to 1.5 kPa/mm.

10. The curtain airbag assembly of claim 1 , wherein the ratio is about 0.1 kPa/mm for the inflated curtain airbag with a width equal to or greater than 150 mm.