METHOD OF CONTROLLING AN INJECTION TIME OF A FUEL INJECTOR
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United States of America Patent
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Mar 12, 2015
app pub date -
Apr 5, 2013
filing date -
Apr 12, 2012
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Abstract
A method of controlling fuel injection in an internal combustion engine is presented. A drive signal is generated for each injection event, with which the injector is kept open to spray fuel in accordance with a requested fuel quantity. The drive signal has a duration based on a pulse width that is determined from an injector-specific correspondence function defining the pulse width vs. a corresponding open time variable representative of injector open time. The open time variable is determined on the basis of a master performance function defining the requested fuel quantity in function of the open time variable.
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