Patent ID: 6513488
Filing Date: 2003-02-04
Classification: F01P,F02B,F02D,F02M,Y02T

Abstract:
A fuel injection control apparatus for a direct injection type internal combustion engine comprises:a crank angle sensor detecting rotational angle of an internal combustion engine; a fuel injection valve directly injecting fuel to a combustion chamber of said internal combustion engine; a fuel pump supplying fuel to said fuel injection valve whereby supply pressure of fuel is set equal to or less than the maximum cylinder pressure during motoring of said internal combustion engine; and control means for controlling open or close timing of said fuel injection valve to control fuel injection amount and fuel injection duration in response to operating conditions of said internal combustion engine and detecting end timing of an intake valve of said internal combustion engine in accordance with the rotational angle output of said crank angle sensor and controlling the fuel injection timing to close said fuel injection valve not later than the closing of said intake valve.