Control device and control method for internal combustion engines
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United States of America Patent
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Jan 23, 2018
Issued Date -
N/A
app pub date -
Jan 10, 2014
filing date -
Mar 21, 2013
priority date (Note) -
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Abstract
A control device for an internal combustion engine which includes one of the port injection fuel injection valve and the cylinder injection fuel injection valve that serves as a main fuel injection valve, the other of the fuel injection valves that serves as an auxiliary fuel injection valve arranged to be auxiliarily operated in a specified engine driving condition, and which is configured to perform a switching of an injection and a stop of the auxiliary fuel injection valve in accordance with an engine driving condition, the control device includes: the control device being configured to switch the injection and the stop of the auxiliary fuel injection valve in a state where an air-fuel ratio by an injection amount of the fuel by the main fuel injection valve is thicker than a stoichiometric air-fuel ratio.
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