Exhaust gas control apparatus for internal combustion engine
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United States of America Patent
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Oct 22, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jul 10, 2017
filing date -
Jul 14, 2016
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Abstract
A basic regeneration completion pressure difference value is set based on a predicted deposition amount of incombustible deposits produced steadily on a particulate filter, and a corrected regeneration completion pressure difference value higher than the basic regeneration completion pressure difference value is set based on a deposition amount of incombustible deposits deposited unsteadily on the particulate filter. After regeneration processing starts, when a time for which a pressure difference value is maintained to be equal to or greater than the basic regeneration completion pressure difference value after decreasing to the corrected regeneration completion pressure difference value exceeds a prescribed regeneration completion time, the regeneration processing ends.
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