| 摘要 |
PURPOSE:To contrive an improvement in drivability by enabling fuel injection corresponding to the sudden change of an operation state, by a method wherein a plurality of times of fuel injection operations is performed during suction stroke period of each cylinder synchronously with an engine speed and fuel is made to inject every operation. CONSTITUTION:During operation of an engine, a cut-in step is made to perform every generation of a crank angle signal (45 deg.CA in case of 4 cylinder engine), a basic injection quantity TD is computed through data Q of a suction quantity by an air flow meter 11 and data Ne of a speed, which is made into an injection quantity T by correcting the same according to an operation state of the engine, in a control circuit 10. Then discriminating counter value of a cylinder during a suction stroke is read out from a memory for decision, and fuel is made to inject toward a suction port of the corresponding cylinder by energizing any one of fuel injection valves 5-1-5-4 according to a result of the discrimination. Then each injection valve is controlled in order in conformity with a fuel injection quantity computed every time by performing the above action every generation of a crank angle signal. |
