Method of controlling low-pressure fuel pump for GDI engine
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United States of America Patent
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Aug 18, 2015
Grant Date -
May 30, 2013
app pub date -
Jul 10, 2012
filing date -
Nov 30, 2011
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Abstract
A method of controlling a low-pressure fuel pump for a GDI engine includes setting predetermined driving conditions that affect a drivability of the GDI engine in situations that are generated in a vehicle in which the GDI engine is mounted, open-loop controlling the low-pressure fuel pump when one or more of the predetermined driving conditions occur, and when none of the predetermined driving conditions occurs, close-loop controlling the low-pressure fuel pump according to a signal from a fuel pressure sensor such that a target fuel pressure provided from an engine controller is pursued.
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