Method and apparatus for controlling regeneration of a particulate filter
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United States of America Patent
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Mar 8, 2005
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N/A
app pub date -
Dec 5, 2003
filing date -
Dec 5, 2003
priority date (Note) -
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Abstract
Apparatuses and methods for regenerating a particulate filter. A first temperature corresponding to a temperature of a catalyst that is thermally coupled with a particulate filter is determined. A second temperature corresponding to the temperature of the particulate filter is determined. Substantially no unburned hydrocarbons are delivered to the catalyst when the first temperature is below a first threshold and unburned hydrocarbons are delivered to the catalyst when the first temperature is above the first threshold and the second temperature is below a second threshold.
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