×

Tire rotation detection using tire temperature profiling

  • US 7,197,922 B2
  • Filed: 05/17/2005
  • Issued: 04/03/2007
  • Est. Priority Date: 05/17/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for detecting a tire rotation event for a first front tire and a second front tire of a vehicle and a first rear tire and a second rear tire of the vehicle, comprising:

  • measuring a first temperature of the first front tire, a first temperature of the second front tire, a first temperature of the first rear tire, and a first temperature of the second rear tire;

    determining a first front average temperature (FAT) based on said first temperature of the first front tire and said first temperature of the second front tire;

    determining a first rear average temperature (RAT) based on said first temperature of the first rear tire and said first temperature of the second rear tire;

    calculating a first ratio of said first FAT to said first RAT;

    measuring a second temperature of the first front tire, a second temperature of the second front tire, a second temperature of the first rear tire, and a second temperature of the second rear tire;

    determining a second FAT based on said second temperature of the first front tire and said second temperature of the second front tire after said determining said first FAT;

    determining a second RAT based on said second temperature of the first rear tire and said second temperature of the second rear tire after said determining said first RAT;

    calculating a second ratio of said second FAT to said second RAT;

    identifying the tire rotation event based at least in part upon a comparison of said first ratio and said second ratio.

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