System and method for improved transitions between engine combustion modes
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United States of America Patent
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Apr 30, 2013
Grant Date -
Dec 1, 2011
app pub date -
Jun 1, 2010
filing date -
Jun 1, 2010
priority date (Note) -
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Abstract
A control system for a homogeneous charge compression ignition (HCCI) engine includes a timing adjustment module and a combustion control module. The timing adjustment module, per combustion event, advances timings of N fuel injections and retards timings of M fuel injections and spark during a transition from HCCI combustion to mixed-mode combustion. The combustion control module subsequently retards the timings of the N fuel injections and advances the timings of the M fuel injections and the spark to desired timings, respectively, wherein the N fuel injections and the M fuel injections occur sequentially during each combustion event of the HCCI engine, and wherein N and M are integers greater than or equal to zero.
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