Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1993-03-09
1995-06-13
Stephan, Steven L.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
340438, 280735, B60R 2132
Patent
active
054245842
ABSTRACT:
A control system for a plurality of vehicle safety devices has a feeder circuit and a check current supplying circuit. A plurality of actuating elements are arranged in the feeder circuit in parallel relation, and at the same time, they are arranged in the check current supplying circuit in serial relation. When a switching element is turned ON in accordance with a trigger signal coming from a collision judging circuit, an electric current flowing through the feeder circuit is caused to flow through the actuating elements in parallel. The check current flows to the actuating elements in series. The voltage generated between opposite ends of the serial circuit of the actuating elements in the check current supplying circuit is compared with a predetermined allowable range of voltage in a malfunction judging current, and when the voltage between the opposite ends is outside the predetermined allowable range of voltage, a malfunction detecting signal is outputted from the malfunction judging circuit.
REFERENCES:
patent: 5155376 (1992-10-01), Okano
patent: 5187468 (1993-02-01), Stonerook et al.
Matsuda Norio
Okano Masami
Airbag Systems Company Ltd.
Krishnan Aditya
Stephan Steven L.
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