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Method and system for determining condition of road

  • US 6,202,020 B1
  • Filed: 08/20/1999
  • Issued: 03/13/2001
  • Est. Priority Date: 08/20/1999
  • Status: Expired due to Fees
First Claim
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1. A method for determining the condition of a road travelled by an automotive vehicle, the method comprising:

  • sensing a speed of the vehicle;

    sensing a vertical acceleration of the vehicle;

    determining a first road profile interval having upper and lower threshold values based on the speed of the vehicle; and

    determining the condition of the road based on the vertical acceleration and the first road profile interval.

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