초록 ▼

An apparatus (10) for inflating an inflatable vehicle occupant protection device, such as an air bag, includes a housing (20) defining a chamber (22), inflation fluid at a predetermined pressure in the chamber (22), and an initiator (34) for initiating the release of the inflation fluid from the cha

An apparatus (10) for inflating an inflatable vehicle occupant protection device, such as an air bag, includes a housing (20) defining a chamber (22), inflation fluid at a predetermined pressure in the chamber (22), and an initiator (34) for initiating the release of the inflation fluid from the chamber (22). The initiator (34) includes a capacitor (120, 240, 270), the capacitance of which changes with a change in pressure in the chamber (22). The apparatus (10) includes means, such as an electrical circuit (280), for sensing a change in the capacitance of the capacitor (286).

대표청구항 ▼

[ Having described the invention, we claim:] [1.] An apparatus for inflating an inflatable vehicle occupant protection device, said apparatus comprising:means for defining a chamber;inflation fluid at a predetermined pressure in said chamber;an initiator for initiating the release of said inflation

[ Having described the invention, we claim:] [1.] An apparatus for inflating an inflatable vehicle occupant protection device, said apparatus comprising:means for defining a chamber;inflation fluid at a predetermined pressure in said chamber;an initiator for initiating the release of said inflation fluid from said chamber,said initiator including a capacitor, the capacitance of which changes with a change in pressure in said chamber; andmeans for sensing a change in the capacitance of said capacitor.