Method for determining an amount of fresh air in a cylinder of an internal combustion ENGINE
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United States of America Patent
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Oct 18, 2016
Grant Date -
Aug 8, 2013
app pub date -
Jan 31, 2013
filing date -
Feb 3, 2012
priority date (Note) -
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Abstract
A method for determining the proportion of gaseous working medium in a cylinder of an internal combustion engine includes opening an injector so as to feed fuel directly into the cylinder. The injector is connected to a fuel line in which a pressure sensor is arranged. The pressure in the fuel line is measured when the injector is open. The proportion of gaseous working medium in the cylinder is determined in conjunction with an association between the measured pressure in the fuel line when the injector is open and the proportion of gaseous working medium in the cylinder.
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