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System and method for predicting vehicle rollover using position tracking

  • US 8,560,217 B2
  • Filed: 06/16/2008
  • Issued: 10/15/2013
  • Est. Priority Date: 06/15/2007
  • Status: Active Grant
First Claim
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1. A method of predicting vehicle rollover with a processor configured to execute instructions stored in a memory, comprising the steps of:

  • determining a center of gravity of a vehicle at rest;

    continuously gathering and analyzing positional data of the vehicle to calculate distance between discrete positions and time difference between measurements;

    determining an actual lateral acceleration of the vehicle in motion, further comprising the steps of;

    determining a velocity of the vehicle based in part on said positional data;

    determining a radius of curvature of a vehicle travel path based in part on said positional data; and

    calculating said actual lateral acceleration of the vehicle based on the velocity of the vehicle and the radius of curvature of the vehicle travel path;

    determining a maximum lateral acceleration of the vehicle, wherein the maximum lateral acceleration is the maximum amount of lateral acceleration of the vehicle permissible prior to the vehicle rolling over, and wherein the maximum lateral acceleration includes a gravity component of the vehicle; and

    determining if the actual lateral acceleration is more than a predefined percentage of the maximum lateral acceleration.

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