Spare tire usage detection

Details Spare tire usage detection Spare tire usage detection

2006-04-18

2006-04-18

Tweel, Jr., John (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S442000

Reexamination Certificate

active

07030745

ABSTRACT:
Methods and apparatus are provided for detecting when a spare wheel (SP) is used to replace a previously rolling wheel on a vehicle, where each wheel can transmit wheel ID and motion status signals. The apparatus comprises a receiver, a memory for storing information relating wheel ID and location, a processor coupled to the receiver and memory for analyzing the wheel signals to determine if the SP is rolling, and a timer coupled to the processor that measures how long the SP has been rolling. When the SP has been rolling for predetermined time T, the processor looks at the motion status signals from remaining wheels to determine which is stopped, and then modifies the information stored in the memory to associate the SP ID with the wheel location formerly occupied by the now stopped wheel and associate the stopped-wheel ID with the storage location for the spare.

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patent: 6954687 (2005-10-01), Taguchi et al.
patent: 6960994 (2005-11-01), Tabata et al.

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