Patent ID: 7117853

Claim:
A fuel injection controller of an internal combustion engine, the fuel injection controller comprising: opening degree sensor for sensing a throttle opening degree of a throttle valve disposed in an intake passage of the engine; crank angle sensor for detecting a crank angle signal corresponding to rotation of a crankshaft of the engine; stroke determining means for determining a stroke of the engine based on the crank angle signal detected by the crank angle sensor; injection controlling means for making a fuel injection valve supply a fuel injection quantity, which is calculated based on parameters including at least one of the throttle opening degree, a change in the throttle opening degree with time, intake pressure, engine rotation speed, engine cooling water temperature, intake air temperature, atmospheric pressure or a gear position of a transmission, in accordance with the crank angle signal in one combustion cycle of the engine, the fuel injection valve being disposed in the intake passage of the engine; and injection correcting means for compulsorily stopping the supply of the fuel injection quantity performed by the injection controlling means if at least one series of operations, of rapidly opening the throttle valve from a certain throttle opening degree and then rapidly closing the throttle valve, occurs within a predetermined time in one combustion cycle of the engine defined by the stroke determining means, and if drawing of an intake quantity of air defined by the series of operations of the throttle valve overlaps with less than one-third of the intake stroke in one combustion cycle of the engine.