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Method and apparatus for rear-end collision warning and accident mitigation

  • US 7,495,550 B2
  • Filed: 12/28/2005
  • Issued: 02/24/2009
  • Est. Priority Date: 12/28/2005
  • Status: Active Grant
First Claim
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1. A method for generating a rear-end collision warning within a lead vehicle having at least one sensor, a computer processing system and an alerting device, the method comprising:

  • detecting, using at least one sensor, a second vehicle approaching the lead vehicle from a rear direction;

    calculating, using the central processing system, a time to collision, based on at least one algorithm that determines a relative velocity of the second vehicle using a rate of change in current and previously stored data from the sensor and capability data of the second vehicle previously stored or received wireless from the second vehicle; and

    generating, using the alerting device, a rear-end collision warning to alert a driver of the lead vehicle of a possible rear-end collision, when the time to collision is within a predetermined range of values.

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