Fuel injection control system for a two-cycle engine

A fuel injection control system for a two-cycle engine having a fuel injector and an electronic control unit for controlling operation of the engine, comprising:

• detector means for detecting engine operating conditions including speed of the engine;
• first pulse width calculating means for calculating a first fuel injection pulse width based on said engine operating conditions detected by said detector means, said first fuel injection pulse width corresponding to amount of fuel necessary for one combustion stroke of the engine;
• second pulse width calculating means for calculating a second fuel injection pulse width based on said engine operating conditions detected by said detector means, said second fuel injection pulse width corresponding to an amount of fuel necessary for two combustion strokes of the engine;
• comparator means for comparing said first fuel injection pulse width calculated by said first calculating means with a minimum value controllable by said fuel injector;
• selecting means for selecting said first fuel injection pulse width when said first fuel injection pulse width is larger than said minimum value, and for selecting said second fuel injection pulse width when said first fuel injection pulse width is smaller than said minimum value;
• and
• driving means for driving said fuel injector at an injection pulse width selected by said selecting means.