SYSTEM AND METHOD OF GENERATING SELECTIVE CATALYST REDUCTION DOSING ESTIMATE FOR A DIESEL ENGINE
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United States of America Patent
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Issued Date -
Jun 27, 2013
app pub date -
Jun 30, 2010
filing date -
Jun 30, 2010
priority date (Note) -
Abandoned
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Abstract
A control system for an engine having an in-cylinder pressure sensor and a selective catalytic reduction device comprises an electronic control module and an in-cylinder pressure sensor. The electronic control module has a processor and a memory. The in-cylinder pressure sensor is disposed in fluid communication with a cylinder of an engine. The incylinder pressure sensor is disposed in communication with the electronic control module. The in-cylinder pressure sensor generates an output indicative of a pressure within the cylinder of the engine. The processor of the electronic control module is programmed to generate an estimate of an amount of NOx produced during combustion, and calculate an amount of reductant required to react with the NOx to limit NOx emissions to a predetermined level.
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