VEHICLE OXIDATION CATALYST DIAGNOSTIC STRATEGY
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United States of America Patent
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Issued Date -
Aug 17, 2017
app pub date -
Feb 12, 2016
filing date -
Feb 12, 2016
priority date (Note) -
Abandoned
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Abstract
A system and method for diagnosing the oxidation catalyst of a vehicle includes an engine, an exhaust system in fluid communication with an exhaust port of the engine and an oxidation catalyst connected with the engine via the exhaust port to receive an exhaust stream from the engine. A controller is operable to determine the operating state of the engine and vehicle, calculate a heat release value for the oxidation catalyst and determine an ideal heat release value. The controller will determine the oxidation catalyst efficiency by calculating a ratio of the heat release value to the ideal heat release value.
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