Method and system for an oxygen sensor
First Claim
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1. An apparatus, comprising:
- an analyzer including a port to receive engine oil from an engine that has undergone fuel combustion, thereby subjecting the engine oil to fuel products, the analyzer configured to measure molecular parameters of each fraction of the engine oil and output the measured molecular parameters; and
a computing device operably coupled to the analyzer, the computing device storing non-transitory instructions executable to;
receive the measured molecular parameters output from the analyzer;
identify one or more individual hydrocarbon species in the fuel products in the engine oil based on the measured molecular parameters received from the analyzer and a model derived from analyzer data collected from a set of known hydrocarbon species; and
output a notification of the identified one or more individual hydrocarbon species for display on a display device.
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Abstract
Examples are provided for estimating an amount of fuel in an engine oil and an effect of the fuel on a gas sensor. In one example, an apparatus may include an analyzer to analyze an engine fluid and a computing device operably coupled to the analyzer, the computing device storing non-transitory instructions executable to determine fuel dilution in engine oil based on speciation of hydrocarbons in fuel in the engine oil determined based on output received from the analyzer.
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Citations
19 Claims
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1. An apparatus, comprising:
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an analyzer including a port to receive engine oil from an engine that has undergone fuel combustion, thereby subjecting the engine oil to fuel products, the analyzer configured to measure molecular parameters of each fraction of the engine oil and output the measured molecular parameters; and a computing device operably coupled to the analyzer, the computing device storing non-transitory instructions executable to; receive the measured molecular parameters output from the analyzer; identify one or more individual hydrocarbon species in the fuel products in the engine oil based on the measured molecular parameters received from the analyzer and a model derived from analyzer data collected from a set of known hydrocarbon species; and output a notification of the identified one or more individual hydrocarbon species for display on a display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An engine testing apparatus, comprising:
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a gas chromatographer mass spectrometer (GC-MS) configured to sample an engine fluid and measure a respective retention time for each of a plurality of fractions of the engine fluid; and a computing device operably coupled to the GC-MS, the computing device storing non-transitory instructions executable to; identify one or more hydrocarbon species present in the engine fluid based on each retention time and a model derived from GC-MS data collected from a set of known hydrocarbon species; and output a notification of the identified one or more hydrocarbon species for display on a display device. - View Dependent Claims (13, 14, 15, 16)
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17. An engine testing apparatus, comprising:
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a gas chromatographer mass spectrometer (GC-MS) configured to sample engine oil and determine, for each of a plurality of fractions of the engine oil, a retention time; and a computing device operably coupled to the GC-MS, the computing device storing non-transitory instructions executable to; identify one or more hydrocarbon species and a concentration of each identified hydrocarbon species present in the engine oil based on each retention time and a model derived from GC-MS data collected from a set of known hydrocarbon species; determine a calibration value usable for calibrating an oxygen sensor of a vehicle based on each retention time; and output a notification of the calibration value for display on a display device. - View Dependent Claims (18, 19)
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Specification