An object is to provide an electronically controlled diesel engine capable of inhibiting the drastic increase of the fuel injection quantity from the fuel injection quantity before acceleration without the measurement of the relation between the number of revolutions of an engine, boost pressure, and the upper smoke limit of the fuel injection quantity. An electronically controlled diesel engine includes an judge part of an acceleration (64) that judges whether a control of acceleration is finished or not based on a difference between a target number of revolutions of the engine (Nset) and an actual number of revolutions of the engine (Ne). The electronically controlled diesel engine includes that the calculate part of a third upper limit of a fuel injection quantity (73) that is included in the calculate part of the upper limit of the fuel injection quantity (65) that sets an initial upper limit of a fuel injection quantity (Q0) to a bigger injection quantity either of an injection quantity at the time of the judgment and a limit of a injection quantity based on the actual number of revolutions of the engine (Ne) at the time of the judgment when the judge part of an acceleration (64) determines that the condition of acceleration in the low speed area are satisfied and recover the limit value to the normal limit value until the judgment means of cancel of acceleration in the low speed area determines that the condition of cancel of acceleration in the low speed area are satisfied.
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