Fuel injection apparatus for internal combustion engine

A fuel injection apparatus for an internal combustion engine, comprising:

• various types of sensors for detecting operation state of said internal combustion engine;
• a control unit for arithmetically determining a fuel injection quantity to be injected into said internal combustion engine in dependence on said engine operation state;
• and
• a fuel injector for injecting the fuel into said internal combustion engine in conformance with said fuel injection quantity determined arithmetically,
• said control unit being comprised of:
• basic fuel injection quantity arithmetic means for arithmetically determining a basic fuel injection quantity in dependence on said engine operation state;
• data map means for holding a plurality of data for determining a regulating correction quantity in accordance with specific parameters of said engine operation state;
• and
• correcting arithmetic means for determining said fuel injection quantity by correcting said basic fuel injection quantity with said data,
• wherein said data map means includes:
• a plurality of areas for holding said data, said plurality of areas having intermediate areas holding no data between two adjacent data holding areas,
• wherein said correcting arithmetic means includes:
• map search means for arithmetically determining interpolation data corresponding to said intermediate area through interpolation arithmetic based on the data stored in said two areas, and
• wherein the fuel injection quantity corresponding to said intermediate area is determined by correcting said basic fuel injection quantity with said interpolation data.