Method and system for determining the type of fuel used to power a vehicle
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United States of America Patent
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-
Jun 8, 2004
Grant Date -
Feb 27, 2003
app pub date -
Aug 13, 2001
filing date -
Aug 13, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for determining the type of fuel used by a vehicle includes receiving hydrocarbon speciation and nitrogen-oxygen compound data from an emissions sensor. The hydrocarbon speciation data is compared to one or more hydrocarbon threshold levels, and each threshold level corresponds to an anticipated fuel type. The nitrogen-oxygen compound data is compared to one or more nitrogen-oxygen compound threshold levels, and each threshold level corresponds to an anticipated fuel type. Based on the comparison of the hydrocarbon speciation and nitrogen-oxygen compound data to threshold levels, an anticipated fuel type is determined.
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