amount and exhaust system using the same
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United States of America Patent
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Jul 15, 2014
Grant Date -
May 24, 2012
app pub date -
Jun 30, 2011
filing date -
Nov 18, 2010
priority date (Note) -
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Abstract
A method for predicting a NOx amount may include detecting an O2 amount in an intake air, calculating a reference O2 amount in the intake air according to a driving condition of an engine, calculating a reference NOx amount contained in an exhaust gas according to the driving condition of the engine, and primarily correcting the reference NOx amount based on the detected O2 amount in the intake air and the reference O2 amount in the intake air according to the driving condition of the engine.
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