System for vehicle safety devices

Details System for vehicle safety devices System for vehicle safety devices

1990-07-16

1991-05-28

Marmor, Charles A.

Land vehicles

Wheeled

Attachment

180271, 340438, 307 101, B60R 2116

Patent

active

050187635

ABSTRACT:
In a vehicle safety system having a warning buzzer an inductance element of the buzzer is also used as a coil element for stepping up voltage in a voltage step-up circuit of an energy reservoir in which the electric energy required for actuating an electrically fired actuator of a safety device is stored in a capacitor of large capacity. The voltage step-up circuit is adapted to produce a high output voltage in response to the application of an appropriate ON/OFF signal. In the case where it is detected that an abnormal condition has arisen in the system, a signal having an audible frequency component is applied to the voltage step-up circuit, whereby the buzzer operates to generate a warning sound.

REFERENCES:
patent: 3818431 (1974-06-01), Hosaka
patent: 4222030 (1980-09-01), Yasui et al.
patent: 4845377 (1989-07-01), Swart
patent: 4873452 (1989-10-01), Morota et al.
patent: 4887843 (1989-12-01), Husby

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