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Collision-detecting device for automotive vehicle

  • US 7,782,180 B2
  • Filed: 04/14/2008
  • Issued: 08/24/2010
  • Est. Priority Date: 06/19/2007
  • Status: Active Grant
First Claim
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1. A collision-detecting device for an automotive vehicle comprising:

  • a deformable member forming an inside space therein, the deformable member being disposed in a bumper of the automotive vehicle;

    a pressure sensor detecting a pressure change in the inside space of the deformable member; and

    means for detecting that a pedestrian collides with the bumper based on the pressure change detected by the pressure sensor, wherein;

    a width (W) of the deformable member is larger than a crush-width to be caused on the deformable member by a collision with the pedestrian; and

    a height (h) of the deformable member is set, so that a reaction force (F) of the deformable member due to the pressure change in the inside space of the deformable member caused by the collision with the pedestrian does not exceed a predetermined level.

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