| 摘要 |
PURPOSE:To suppress generation of white smoke as well as enhance the starting characteristic, in a Diesel engine in which the requisite injection amount is compared with the max. injection amount for the purpose of controlling the amount of fuel injection so as not to exceed the max. injection amount, by releasing restriction by max. injection amount at the time of starting. CONSTITUTION:While the engine is in operation, the basic amount of injection corresponding to the requisite injection amount is determined from a map stored previously in ROM 100 on the basis of the accelerator opening and engine's revolving speed, which can be determined from the output of a revolving speed sensor 22. Then from the abovementioned revolving speed of engine and the suction pipe pressure from suction pressure sensor 48, the max. injection amount is determined, which shall serve to control so as to prevent Diesel smoke as well as to suppress the chamber and exhaust temps. below the critical value. It is then judged if the start injection control is in effect, and in the case of YES the restriction of injection amount by the abovementioned max. injection amount shall be released and in the case of low engine speed, by contrast, the injection amount shall be set above the max. injection amount. |
