Tire rotation detection using tire temperature profiling

Details Tire rotation detection using tire temperature profiling Tire rotation detection using tire temperature profiling

2007-04-03

2007-04-03

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Tire, tread or roadway

C073S146500

Reexamination Certificate

active

11130973

ABSTRACT:
Methods and apparatus are provided for detecting whether a tire rotation event or tire inflation even has occurred on a vehicle. The method comprises determining a first front average temperature (FAT) of a first front tire and a second front tire, determining a first rear average temperature (RAT) of a first rear tire and a second rear tire, and calculating a first ratio of the first FAT to the first RAT. The method further comprise determining a second FAT of the first front tire and the second front tire after determining the first FAT, determining a second RAT of the first rear tire and the second rear tire after determining the first RAT, calculating a second ratio of the second FAT to the second RAT, and identifying the tire rotation event based at least in part upon a comparison of the first ratio and the second ratio.

REFERENCES:
patent: 5569848 (1996-10-01), Sharp
patent: 6385511 (2002-05-01), Fondeur et al.
patent: 6672149 (2004-01-01), Hottebart et al.
patent: 6907778 (2005-06-01), Kogure et al.

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