| 摘要 |
PURPOSE:To control the injection time, quantity and ratio of fuel to optima depending on the operating condition of an engine, by providing a control means for opening or closing an injection ratio control means on the basis of a signal from a fuel intake detection means in the opening or closing of a fuel passage. CONSTITUTION:A single pulse S2 is continually produced in response to the trailing edge of a pulse signal S2 generated at every top dead center in the exhaust from a cylinder. When the level of the output pulse S2 has become high at the entry into a region of low load and slow rotation, the signal S7 of an RS flip-flop 70 is shifted over to a high level synchronously with the output of the pulse S2. When the level of the output pulse S2 has become low at the entry into a region of high load and rapid rotation or the like, the signal S7 is shifted over back to a low level. The time of the output of the pulse S2 corresponds to the intake process of a plunger, so that a solenoid valve 53 is opened or closed only in the intake process of the plunger to alter the injection ratio of fuel. The injection ratio is thus made good, depending on the operating region of an engine. |
