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Device and system for indicating rapid deceleration in vehicles

  • US 6,911,905 B2
  • Filed: 07/02/2002
  • Issued: 06/28/2005
  • Est. Priority Date: 03/27/2000
  • Status: Expired due to Fees
First Claim
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1. An urgent deceleration indicating device to selectively activate a warning indicator comprising:

  • (a) at least one warning indicator adapted to indicate a warning at least external to vehicle;

    (b) a sensor system, having an output, responsive to acceleration in a primary direction of vehicle motion; and

    (c) a controller responsive to the output of the sensor system, the controller correcting for gravitational effects such that at least one warning indicator is initiated when the acceleration exceeds at least one threshold value.

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