Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Chemical analysis
Reexamination Certificate
2007-03-01
2011-12-06
Wachsman, Hal (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Chemical analysis
C702S022000, C702S030000, C702S032000
Reexamination Certificate
active
08073636
ABSTRACT:
Systems and methods for determining the gas composition of a gas mixture in a fuel tank of a motor vehicle filled with a compressed natural gas (CNG) mixture are provided. A pressure sensor and a temperature sensor are used to measure a gas pressure and a gas temperature in the fuel tank A processor may execute an algorithm to determine, based at least on the measured gas temperature and the measured gas pressure in the fuel tank, a current vapor pressure of each of at least one component of the CNG mixture in the fuel tank. If the measured gas pressure in the fuel tank falls below a threshold, a corresponding current composition of the CNG mixture in the fuel tank may be determined.
REFERENCES:
patent: 4370150 (1983-01-01), Fenstermaker
patent: 5542392 (1996-08-01), Povinger
patent: 5697346 (1997-12-01), Beck
patent: 5900515 (1999-05-01), Mallinson et al.
patent: 44 46 081 (1995-06-01), None
patent: 0 894 959 (1999-02-01), None
patent: WO 94/24433 (1994-10-01), None
Translation of EP0894959, translated Jul. 20, 2010.
Bauer Erwin
Ellmer Dietmar
Continental Automotive GmbH
King & Spalding L.L.P.
Wachsman Hal
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