Air bag deployment trigger sensor with sacrificial waveguide
First Claim
1. A triggering device for sensing objects disposed between an electric window and its window frame, which comprises:
- a rigid optical waveguide disposed longitudinally in proximate location to an edge of said frame for carrying optical rays;
sensor means coupled to said optical waveguide, said sensor means triggering the electric window to stop when said optical waveguide breaks.
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Abstract
An air bag deployment trigger sensor for activating the deployment of an air bag in a vehicle as a result of an impact or collision. The air bag deployment trigger sensor utilizes a sacrificial waveguide which transmits optical signals from an emitter along the waveguide, and which are received by a detector. A sensor circuit attached to the detector senses the optical signal and decodes, measures, or compares the optical signal with a predetermined electrical signal produced by the detector. The sensor'"'"'s detection of an alteration or interruption of the optical signal along the waveguide triggers air bag deployment. In accordance with one embodiment of the invention the sensor arrangement is employed for deactivating electric windows, sun-roofs and doors, when it senses an object being placed in the path of closure.
11 Citations
17 Claims
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1. A triggering device for sensing objects disposed between an electric window and its window frame, which comprises:
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a rigid optical waveguide disposed longitudinally in proximate location to an edge of said frame for carrying optical rays;
sensor means coupled to said optical waveguide, said sensor means triggering the electric window to stop when said optical waveguide breaks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification