Control system for internal combustion engines

In a control system for an internal combustion engine having an intake passage, and at least one combustion chamber, said intake passage having an inner wall surface, the control system including:

• fuel supply amount-calculating means for calculating an amount of fuel to be supplied to said engine, based on load on said engine;
• adherent fuel amount/carried-off fuel amount-estimating means for estimating an amount of fuel adhering to said inner wall surface of said intake passage and an amount of fuel carried off said fuel adhering to said inner wall surface of said intake passage and drawn into said combustion chamber of said engine, based on adherent fuel-determining parameters indicative of fuel transfer characteristics of said engine;
• fuel supply amount-correcting means for correcting said amount of fuel calculated by said fuel supply amount-calculating means, based on said amount of fuel adhering to said inner wall surface of said intake passage and said amount of fuel carried off said fuel adhering to said inner wall surface of said intake passage, to determine a corrected amount of fuel to be supplied to said engine;
• and
• fuel injection means for injecting said corrected amount of fuel to be supplied to said engine obtained by said fuel supply amount-correcting means into said intake passage;
• the improvement comprising:
• fuel injection timing control means for controlling timing of said fuel injection by said fuel injection means, based on said adherent fuel-determining parameters.