Communications: electrical – Land vehicle alarms or indicators – Of collision or contact with external object
Patent
1997-09-11
1998-09-01
Hofsass, Jeffery A.
Communications: electrical
Land vehicle alarms or indicators
Of collision or contact with external object
340903, 340429, 701 45, 701 47, B60Q 100
Patent
active
058016198
ABSTRACT:
An analog signal processing system and decision logic for controlling airbag deployment includes low pass filter circuitry, differentiation circuitry and integration circuitry operable to receive an analog acceleration signal and provide a differentiated analog bandpass acceleration signal, a reduced bandpass analog acceleration signal, a low pass analog acceleration signal, an analog velocity signal and an analog displacement signal. An interface circuit receives the foregoing analog signals and converts such signals to a number of logic level signals based on comparison with a number of predefined analog threshold signals. A decision logic circuit receives the converted logic level signals and processes such signals to discriminate between severe and non-severe impact events, and control airbag deployment in accordance therewith.
REFERENCES:
patent: 5285187 (1994-02-01), Hirao et al.
patent: 5436838 (1995-07-01), Miyamori
patent: 5445413 (1995-08-01), Rudolf et al.
patent: 5629847 (1997-05-01), Shirakawa et al.
patent: 5737224 (1998-04-01), Jeenicke et al.
Kelley Jon Paul
Liu Jiyao
Delco Electronics Corp.
Funke Jimmy L.
Hofsass Jeffery A.
Pope Daryl C.
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