Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
James R. Yurgil0
Date of Patent
February 22, 2011
0Patent Application Number
115614870
Date Filed
November 20, 2006
0Patent Primary Examiner
Patent abstract
A monitoring system for a catalytic converter is provided. The system includes: a fuel determination module that determines a fuel composition based on a sensed composition of fuel in a fuel system; a fuel/air (F/A) determination module that selectively determines a stoichiometric F/A ratio based on the fuel composition; and an oxygen storage capacity (OSC) diagnostic module that computes a target OSC based on the stoichiometric F/A ratio, that compares the target OSC to a reference value and diagnosis the catalytic converter based on the comparison.
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