Duplex actuation system for inflatable restraints
First Claim
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1. A duplex firing initiator for an airbag inflator, the duplex firing initiator comprising:
- both a primary initiator and a secondary initiator for electrical connection to a Restraint Control Module; and
wherein current is conducted in a forward polarity through the primary initiator to actuate the primary initiator and current is conducted in a reverse polarity through the secondary initiator to actuate at least the secondary initiator.
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Abstract
A duplex firing initiator for an airbag inflator includes both a primary initiator and a secondary initiator for electrical connection to a Restraint Control Module. In the duplex firing initiator, current is conducted in a forward polarity through the primary initiator to actuate the primary initiator and current is conducted in a reverse polarity through the secondary initiator to actuate at least the secondary initiator.
41 Citations
17 Claims
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1. A duplex firing initiator for an airbag inflator, the duplex firing initiator comprising:
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both a primary initiator and a secondary initiator for electrical connection to a Restraint Control Module; and wherein current is conducted in a forward polarity through the primary initiator to actuate the primary initiator and current is conducted in a reverse polarity through the secondary initiator to actuate at least the secondary initiator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A duplex firing initiator for an airbag inflator, the duplex firing initiator comprising:
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both a primary initiator and a secondary initiator for electrical connection to a Restraint Control Module;
wherein;the primary initiator is connected in series with a first diode; the secondary initiator is connected in series with a second diode, the secondary initiator and the second diode connected in parallel with the primary initiator and the first diode; wherein the second diode is reverse biased compared to the first diode; wherein current is conducted in a forward polarity through the first diode to fire the primary initiator and current is conducted in a reverse polarity to fire the secondary initiator; and wherein at least one of the first diode and the second diode comprises a Schottky diode. - View Dependent Claims (17)
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Specification