Patent ID: 8151767
Filing Date: 2012-04-10
Classification: F02D,F02M

Abstract:
1. A method for controlling a fuel injection system of a vehicle, the method comprising: generating fuel pressure via an electronically controlled pump, the electronically controlled pump actuated responsive to a fuel pump command; during an initial start-up duration, generating the fuel pump command via a first mapping to drive the pump, where the first mapping includes mapping a default signal to active pump operation; after the initial start-up duration, generating the fuel pump command via a second mapping to drive the pump where the second mapping includes mapping the default signal to pump deactivation; generating fuel pressure via the electronically controlled pump and a second pump; and generating the fuel pump command in a first module, and generating the fuel pump command in a second module, where the second module has a faster initialization than the first module; and directly injecting pressurized fuel into an engine, wherein the pump is an electronically controlled lift pump.