Patent ID: 6170468
Filing Date: 2001-01-09
Classification: F02D,Y02T

Abstract:
A fuel injection control system for an internal combustion engine, comprising:a crank angle sensor for generating a crank angle signal indicative of rotational positions of said engine;a variety of sensors for detecting operating states of said engine;fuel injectors for injecting a demanded quantity of fuel into a plurality of cylinders of said engine;cylinder identifying means for identifying each of said engine cylinders on the basis of said crank angle signal to thereby generate a cylinder identifying signal; andfuel injection control means for driving said fuel injectors of said engine cylinders, respectively, in dependence on said crank angle signal, said engine operating states and said cylinder identifying signal,wherein said fuel injection control means is so designed as to inject the fuel simultaneously only for the engine cylinders which are not in the suction stroke after generation of said cylinder identifying signal while setting driving time durations of said fuel injectors on the basis of said demanded fuel quantity Fs and the number N of said cylinders so that a basic fuel quantity Fb per injection for each of said engine cylinders can meet the condition that Fb=Fs/(N-1).