Method of regenerating an exhaust after treatment device
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United States of America Patent
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Jul 18, 2017
Issued Date -
N/A
app pub date -
Feb 23, 2010
filing date -
Feb 26, 2009
priority date (Note) -
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Abstract
A method of controlling combustion in an internal combustion engine with exhaust after treatment device is proposed, wherein upon detection of a request for a regeneration event of the exhaust after treatment device, a regeneration combustion mode comprising a pilot injection and a retarded main injection is operated. During the regeneration combustion mode the injection timing of the main injection is controlled so that its retard is not later than a retard threshold that is determined as the maximum timing retard to provide the desired torque, but with an injected fuel quantity not exceeding a maximum fuel quantity given by a stored smoke-limit map.
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