Patent ID: 6009848
Filing Date: 2000-01-04
Classification: F02B,F02D,Y02T

Abstract:
A fuel control system for a cylinder injection internal combustion engine having a spark plug disposed within a respective combustion chamber of an engine cylinder, said fuel control system comprising:an electronic control device including:an engine operation state information device which stores preceding engine operation state information of said internal combustion engine with respect to a temperature of said spark plug disposed within said respective combustion chamber; andan injection mode setting device which sets a fuel injection mode selectively as one of a one-stroke fuel injection mode and a two-stroke fuel injection mode;wherein if said temperature of said spark plug is sufficiently heated to above a predetermined temperature in the preceding engine operation, the injection mode setting device selects the two-stroke fuel injection mode, and if said temperature of said spark plug is insufficiently heated below said predetermined temperature, the injection mode setting device selects the one-stroke fuel injection mode, whereby an ignition abnormality in which uncombusted material is deposited on said spark plug, ascribable to the two-stroke fuel injection mode when said spark plug is insufficiently heated, is prevented.