Patent ID: 6148790
Filing Date: 2000-11-21
Classification: F02D,Y02T

Abstract:
A method for operating an internal combustion engine comprising the steps of:providing predetermined intervals corresponding to predetermined angle of rotation distances of a shaft of the internal combustion engine; andat the predetermined intervals, injecting fuel directly into a combustion chamber of the internal combustion engine one of during an intake phase in a first mode and during a compression phase in a second mode,wherein the predetermined intervals correspond to first angle of rotation distances when the internal combustion engine operates at first revolutions-per-minute (rpm) and when a first load is applied to the internal combustion engine,wherein the predetermined intervals correspond to second angle of rotation distances when the internal combustion engine operates at second rpm and when a second load is applied to the internal combustion engine, andwherein the first angle of rotation distances are greater than the second angle of rotation distances, the first rpm are greater than the second rpm, and the first load is greater than the second load.