Patent ID: 6450149
Filing Date: 2002-09-17
Classification: F02D,Y02T

Abstract:
A fuel injection control system for controlling fuel injection shots in a multi-shot fuel injection event comprising:at least one cylinder; at least one fuel injection device operable to deliver a plurality of fuel injection shots to said at least one cylinder during the fuel injection event; a controller coupled to said at least one fuel injection device and operable to determine a desired amount of fuel and the time duration for each of said plurality of fuel injection shots; said controller being operable to establish a predetermined nominal first shot duration value, a predetermined first shot advance value, and a predetermined minimum second shot delay value associated with said at least one fuel injection device and said at least one cylinder; said controller being operable to determine whether a first fuel shot in said fuel injection event needs to be trimmed based upon said nominal first shot duration value, said first shot advance value, and said minimum second shot delay value; and said controller being operable to modify the time duration of said first fuel shot if said controller determines that said first fuel shot needs to be trimmed.