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Method for identifying vehicle wheels having low tire pressure

  • US 20090173149A1
  • Filed: 12/15/2008
  • Published: 07/09/2009
  • Est. Priority Date: 01/04/2008
  • Status: Active Grant
First Claim
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1. A method for identifying vehicle wheels having low tire pressure, comprising the steps of:

  • determining the number of revolutions of each wheel of a vehicle over a preselected driving distance;

    comparing said number of wheel revolutions crosswise by (i) summing said number of wheel revolutions of a first diagonal of opposite front right and rear left wheels and of a second diagonal of opposite front left and rear right wheels, and (ii) calculating a first difference between the sums of said number of wheel revolutions of said first and second diagonals;

    identifying at least one of said first and second diagonals as containing a wheel affected by low tire pressure based on the sign of said first difference;

    comparing said number of wheel revolutions of each side of said vehicle by (iii) summing said number of wheel revolutions of a first side of said front left and rear left wheels and of a second side of said front right and rear right wheels, and (iv) calculating a second difference between the sums of said number of wheel revolutions of said first and second sides; and

    identifying at least one of said first and second sides as containing a wheel affected by low tire pressure based on the sign of said second difference.

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