Vehicular passenger protection system

Details Vehicular passenger protection system Vehicular passenger protection system

1994-09-09

1996-10-15

Ellis, Christopher P.

Land vehicles

Wheeled

Attachment

307 101, 340436, B60R 2116

Patent

active

055647375

ABSTRACT:
A passenger protection system for a motor vehicle having a supplementary power supply for operating the protection system has a relatively small capacity. This enables the system to be made more compact and lighter. The vehicle includes a battery disposed in parallel with two diodes via a key switch. Output form one diode charges a back-up condenser. Discharge energy from the back-up condenser is provided to the airbag circuit via a switch. The output of the other diode is also provided to the airbag circuit. The switch is controlled by a detection circuit that judges whether energy is supplied from the back-up condenser to the airbag circuit. An ignition device is set so that the airbag may be operated via a switch which is turned on with deceleration so that the power is provided responsive to a collision determination.

REFERENCES:
patent: 4740741 (1988-04-01), Andres et al.
patent: 5023468 (1991-06-01), Drobny et al.
patent: 5204547 (1993-04-01), Schumacher et al.
patent: 5216284 (1993-06-01), Mattes et al.
patent: 5261694 (1993-11-01), White et al.
patent: 5311065 (1994-05-01), Kondo
patent: 5432385 (1995-07-01), Kincaid et al.
patent: 5442244 (1995-08-01), Furui
patent: 5459449 (1995-10-01), Rava, Jr. et al.

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