DEVICE AND METHOD FOR CONTROLLING START OF COMPRESSION SELF-IGNITION ENGINE
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United States of America Patent
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Issued Date -
Mar 28, 2013
app pub date -
Aug 24, 2012
filing date -
Sep 26, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A start control device includes: a compression self-ignition engine; fuel injection valves; a piston stop position detector; a starter motor; a controller for automatically stopping the engine when a predetermined stop condition is satisfied, and thereafter, when a predetermined restart condition is satisfied, restarting the engine by injecting fuel into the compression-stroke-in-stop cylinder; and an intake airflow amount adjuster. In automatically stopping the engine, the controller controls the intake airflow amount adjuster so that the intake airflow amount for a cylinder on an intake stroke between a final top dead center (TDC) of the cylinder immediately before the engine is stopped and an immediate previous TDC of the final TDC increases above an intake airflow amount for another cylinder on the intake stroke between a second previous TDC of the final TDC and the immediate previous TDC of the final TDC.
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