| 摘要 |
PURPOSE:To grasp EGR ratio correctly as well as to inject fuel precisely by deciding a correction value of an injection volume by comparing the first injection volume set by an engine revolution number and an opening degree of a throttle valve with the second injection volume set by the engine revolution number and a suction pressure. CONSTITUTION:A computer 2 to input each output signals from a revolution number sensor 3, a suction air pressure sensor 4, a suction air temperature sensor 5 and a throttle sensor 6 is provided. From fixed maps stored in a memory of this computer 2, the first fuel injection volume set by an engine revolution number and an opening degree of a throttle valve and the second fuel injection volume set by the engine revolution number and the suction air pressure can be read out. Then, both fuel injection volumes are compared and a fuel correction factor is obtained in accordance with the deviation to correct the first and the second fuel injection volumes for computing a proper fuel injection volume. Then, according to this proper fuel injection volume, an injector 9 is controlled to inject the fuel with the proper volume. |
