METHOD OF CONTROLLING LOW-PRESSURE FUEL PUMP FOR GDI ENGINE
First Claim
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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Accused Products
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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Citations
9 Claims
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1. A method of controlling a low-pressure fuel pump for a gasoline direct injection (GDI) engine comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification