Triggering mechanism for a safety device in a vehicle, particula

Details Triggering mechanism for a safety device in a vehicle, particula Triggering mechanism for a safety device in a vehicle, particula

1994-03-28

1995-05-30

Rice, Kenneth R.

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

Responsive to engagement of portion of perimeter of vehicle...

280735, 2807302, B60K 2810, B60K 2132

Patent

active

054194075

ABSTRACT:
A triggering mechanism for a side airbag has a deformation sensor for determining a rate of deformation. The deformation sensor is made up of a total of two pressure-sensitive sensor elements, which are attached on a firm carrier plate parallel to the outer skin inside the vehicle. Spacer elements support the carrier plate against a structural element running parallel to the outer skin. The pressure-sensitive surface of a first sensor element in this case faces the outer skin and the pressure-sensitive surface of a second sensor element faces the structural element. The spacer elements are designed, for example, using predetermined buckling points, clip elements, etc., in such a manner that they withstand a pressure on the support plate only up to a threshold and, if the threshold is exceeded, yield abruptly. This is so that, in the event of a deformation-induced force effect, the sensor elements respond one after the other. An evaluation circuit checks the time interval between the two sensor signals and, below a critical time, sends a triggering signal to the side airbag.

REFERENCES:
patent: 4966388 (1990-10-01), Warner et al.
patent: 5172790 (1992-12-01), Ishikawa et al.
patent: 5179256 (1993-01-01), Haglund
patent: 5281780 (1994-01-01), Haland

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