| 摘要 |
PURPOSE:To make accurate adjustment for a control value attainable as well as to make trouble discrimination in a control system performable in an easy manner, by installing an operating device which suspends operation of a control circuit by means of external operation, in case of a device reducing and checking an engine vibration (roughness) due to torque variations. CONSTITUTION:In time of engine operation, first of all, an engine vibration signal out of a roughness sensor 33 is read in at a control unit 40, and a deviation X to a reference value of a reference value setter inside the unit 40 is calculated. then, that whether this deviation X is more than zero or not is discriminated, and when X<0 is the case, a fuel injection quantity is compensated for decrement. On the other hands, when X>0 is the case, the fuel injection quantity is compensated for increment whereby a fuel injection valve 7 is controlled. And, at the abovementioned, when an external operating device 48 is set in motion, the said compensation for the fuel injection quantity is stopped. With this constitution, variations in a control value due to fuel injection compensation is brought to nothing and adjustment for the injection quantity is made so as to be accurately performed. |
