| 摘要 |
PURPOSE:To decrease the unbalance of a fuel/air ratio between each cylinder when the suction order continues by controlling a fuel injection volume at a time of front step suction smaller than that of the rear step suction for unifying the fuel/air ratio of an fuel/air mixture of the front and the rear cylinders. CONSTITUTION:A detected signal of the number of a corresponding cylinder is inputted into an interface 2 of a control unit 1 from a cylinder detecting sensor 3. Also an engine revolution speed from a revolution angle sensor 4 of the engine is inputted. Inside the unit 1, a timing signal inputted by CPU5 and given by an oscillator 6 drives a counter 7 to output a signal to an output interface 9 to control an injection volume of an injector 10. At this time, in a four-cylindered Siamese type engine with a suction port, the injection volume to the first and the second cylinders is controlled to be less than that of the third and the fourth cylinders. |
