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METHOD OF CONTROLLING LOW-PRESSURE FUEL PUMP FOR GDI ENGINE

  • US 20130138325A1
  • Filed: 07/10/2012
  • Published: 05/30/2013
  • Est. Priority Date: 11/30/2011
  • Status: Active Grant
First Claim
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1. A method of controlling a low-pressure fuel pump for a gasoline direct injection (GDI) engine comprising:

  • 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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