Data processing: measuring – calibrating – or testing – Measurement system – Pressure
Reexamination Certificate
2005-03-15
2005-03-15
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Pressure
C701S029000, C701S035000, C073S146000, C073S146500, C340S442000
Reexamination Certificate
active
06868358
ABSTRACT:
A method of processing information in a tire pressure monitoring system includes the steps of: establishing a reference temperature; determining a pressure warning threshold at the reference temperature; measuring gauge pressure and gauge temperature within a tire cavity; correcting the gauge pressure to a filtered pressure value at the reference temperature using the Ideal Gas Law; and comparing the filtered pressure value against the pressure warning threshold to determine the necessity for a warning signal. In an advanced form of the invention, the method includes determining a pressure leak rate; predicting the time interval that the filtered pressure value will cross the pressure warning threshold at the leak rate and generating progressive warnings to the driver over the time interval. Fuzzy logic is used to quantify the probability of a warning state for each data point, allow for measurement error; and report the state of maximum probability to minimize the occurrence of false warning. A warning utility function is derived based upon a combination of the filtered pressure and leak rate.
REFERENCES:
patent: 4866419 (1989-09-01), Kyrtsos et al.
patent: 4909074 (1990-03-01), Gerresheim et al.
patent: 5285189 (1994-02-01), Nowicki et al.
patent: 5353020 (1994-10-01), Schurmann
patent: 5517853 (1996-05-01), Chamussy
patent: 5531574 (1996-07-01), Lowe et al.
patent: 5721374 (1998-02-01), Siekkinen et al.
patent: 5721528 (1998-02-01), Boesch et al.
patent: 5760682 (1998-06-01), Liu et al.
patent: 5783992 (1998-07-01), Eberwine et al.
patent: 5825286 (1998-10-01), Coulthard
patent: 5827957 (1998-10-01), Wehinger
patent: 5886624 (1999-03-01), Hebert
patent: 5895846 (1999-04-01), Chamussy et al.
patent: 5900809 (1999-05-01), Hebert
patent: 5939977 (1999-08-01), Monson
patent: 5963128 (1999-10-01), McClelland
patent: 6002327 (1999-12-01), Boesch et al.
patent: 6092415 (2000-07-01), Borenius et al.
patent: 6118369 (2000-09-01), Boesch
patent: 6144295 (2000-11-01), Adams et al.
patent: 6259360 (2001-07-01), Takamura
patent: 6278363 (2001-08-01), Bezek et al.
patent: 6281787 (2001-08-01), Lerg et al.
patent: 6292095 (2001-09-01), Fuller et al.
patent: 6292096 (2001-09-01), Munch et al.
patent: 6362731 (2002-03-01), Lill
patent: 20020084896 (2002-07-01), Dixit et al.
patent: 4331845 (1994-04-01), None
patent: 4339970 (1994-06-01), None
patent: 19749347 (1998-05-01), None
patent: 19924830 (2000-11-01), None
patent: 2271209 (1992-10-01), None
patent: WO 9929522 (1999-06-01), None
patent: WO 9952723 (1999-10-01), None
patent: WO 9953740 (1999-10-01), None
patent: WO 0112452 (2001-02-01), None
patent: WO 0112453 (2001-02-01), None
patent: WO 0117806 (2001-03-01), None
patent: WO 0136220 (2001-05-01), None
patent: 0143997 (2001-06-01), None
Internet site www.sensormag.com entitled A Smart Tire Pressure Monitoring System from Motorola Semiconductor, Sensor Products Division dated Nov. 2001.
Barlow John
O'Planick Richard B.
The Goodyear Tire & Rubber Company
Vo Hien
LandOfFree
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