Tire inflation pressure monitoring device and vehicle having...

Details Tire inflation pressure monitoring device and vehicle having... Tire inflation pressure monitoring device and vehicle having...

2008-03-04

2008-03-04

Pope, Daryl C (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

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

C340S447000, C340S438000, C073S146000, C073S146500

Reexamination Certificate

active

11391547

ABSTRACT:
A tire inflation pressure monitoring device and a vehicle having the same have a battery-driven unit provided on the tire side that can be reduced in size and power consumption. In a diagnosing unit, an ID comparing section outputs the result of detection of a tire inflation pressure to an inflation pressure calibrating section if a wheel ID included in a received signal coincides with a wheel ID recorded in a set value storing section. An atmospheric pressure detecting section calculates an atmospheric pressure at a present position according to an altitude at the present position. An inflation pressure calibrating section calibrates the result of detection of the tire inflation pressure to an inflation pressure at a reference atmospheric pressure. An inflation pressure diagnosing section compares the calibrated inflation pressure with a reference inflation pressure and inputs a predetermined error code into a storing section if the calibrated inflation pressure is lower than the reference inflation pressure. A diagnosing section reads the result of diagnosis corresponding to the error code recorded in the storing section, from the set value storing section and then outputs the result of diagnosis.

REFERENCES:
patent: 5721528 (1998-02-01), Boesch et al.
patent: 5847645 (1998-12-01), Boesch
patent: 5849120 (1998-12-01), Drieux
patent: 6002327 (1999-12-01), Boesch et al.
patent: 2003-182324 (2003-07-01), None

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