×

Method and System for Identifying Wet Pavement Using Tire Noise

  • US 20110109448A1
  • Filed: 11/10/2009
  • Published: 05/12/2011
  • Est. Priority Date: 11/10/2009
  • Status: Active Grant
First Claim
Patent Images

1. A method for determining a wet road surface condition for a vehicle driving on a road, the method comprising the steps of:

  • capturing tire noise as a vehicle travels on a driving surface of the road using a sound sensing device;

    quantifying a variable sound level of the captured tire noise between a first frequency and a second frequency;

    determining whether each quantified sound level from the first frequency to the second frequency is above a predetermined sound level threshold below the sound level at the first frequency; and

    generating a wet driving surface indicating signal in response to determining that each quantified sound level above the first frequency to the second frequency is above the predetermined sound level threshold.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×