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Method of and system for monitoring preceding vehicles

  • US 5,805,103 A
  • Filed: 09/24/1996
  • Issued: 09/08/1998
  • Est. Priority Date: 09/27/1995
  • Status: Expired due to Fees
First Claim
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1. A preceding vehicle monitoring system for monitoring driving conditions of a preceding vehicle directly in front of a vehicle, said preceding vehicle monitoring system comprising:

  • distance monitoring means for monitoring an inter-vehicle distance to a preceding vehicle at regular intervals; and

    driving condition determining means for calculating a change in inter-vehicle distance between every adjacent intervals based on said inter-vehicle distances, detecting predetermined times of consecutive decreases in said change in inter-vehicle distance, detecting a total of said predetermined times of consecutive decreases and determining that said preceding vehicle is in deceleration when said total of said predetermined times of consecutive decreases is greater than a specified threshold decrease in distance.

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