Method and system for engine control
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United States of America Patent
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Oct 30, 2012
Grant Date -
May 10, 2012
app pub date -
Jan 19, 2012
filing date -
Jul 21, 2010
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Abstract
Methods and systems are provided for controlling exhaust emissions by adjusting a fuel injection into an engine cylinder from a plurality of fuel injectors based on the fuel type of the injected fuel and further based on the soot load of the engine. Soot generated from direct fuel injection is reduced by decreasing an amount of direct injection into a cylinder as the engine soot load increases.
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