Energy reserve circuit for supplemental inflatable restraint

Details Energy reserve circuit for supplemental inflatable restraint Energy reserve circuit for supplemental inflatable restraint

1994-03-10

1995-05-30

Teska, Kevin J.

Boots, shoes, and leggings

340436, 280735, 180282, 307 101, B60R 2116, B60R 2122

Patent

active

054207908

ABSTRACT:
Large reserve capacitors store energy sufficient to operate the firing circuit and the deployment circuit for an SIR in the event of loss of battery or ignition voltage in a crash. A voltage doubling or tripling circuit charges the reserve capacitors. Normally the capacitors are isolated from the deployment circuit to minimize the load on the charging circuit. An isolation circuit detects the loss of ignition voltage and then connects a reserve capacitor to the deployment circuit for continued control operation.

REFERENCES:
patent: 3863208 (1975-01-01), Balban
patent: 3916376 (1975-10-01), Tuttle
patent: 5023468 (1991-06-01), Drobny et al.
patent: 5068640 (1991-11-01), Burger et al.
patent: 5187382 (1993-02-01), Kondo
patent: 5216284 (1993-06-01), Mattes et al.

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