Tire rotation detection system and method

Details Tire rotation detection system and method Tire rotation detection system and method

2011-04-19

2011-04-19

Dunn, Drew A (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

C702S141000, C340S444000

Reexamination Certificate

active

07930132

ABSTRACT:
A method for determining whether a tire is in rotation is provided. A measured acceleration is compared to a first threshold after a first timer indicates that a first period has lapsed, and indication that the tire is in rotation is provided if at least one of the measured accelerations is greater than the first threshold. If an absolute difference between consecutive measured accelerations is greater than a second threshold, an indication that the tire is in rotation is also provided. Additionally, the second timer is started if the absolute difference is greater than the second threshold and if a second timer is not running, and indication that the tire is rotating is provided if the absolute difference is less than a predetermined threshold and if the second timer is running.

REFERENCES:
patent: 5526263 (1996-06-01), Tanaka et al.
patent: 6259361 (2001-07-01), Robillard et al.
patent: 2007/0112475 (2007-05-01), Koebler et al.
patent: 2008/0030314 (2008-02-01), Watabe
patent: WO 2005106422 (2005-11-01), None

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