Patent ID: 6062191
Filing Date: 2000-05-16
Classification: F02D,Y02T

Abstract:
A direct injection internal combustion engine comprising:a fuel injection system for injecting fuel directly into a combustion chamber of the engine and for changing over a combustion mode of the engine between a homogeneous charge combustion mode and a stratified charge combustion mode by changing a fuel injection timing between a homogeneous mode injection timing on an intake stroke for the homogeneous combustion mode and a stratified mode injection timing on a compression stroke for the stratified combustion mode; anda controller for selectively calculating only one of a homogeneous mode fuel injection quantity for the homogeneous combustion mode and a stratified mode fuel injection quantity for the stratified combustion mode, for calculating the homogeneous mode injection timing in accordance with the homogeneous mode fuel injection quantity during a period of the homogeneous combustion mode, and for calculating the homogeneous mode injection timing in accordance with the stratified mode fuel injection quantity during a period of the stratified combustion mode.