| 摘要 |
PURPOSE:To make it possible to obtain a sufficient output power in a low speed range, by controlling the actuating speed of a pressure air supply unit so that the actual rotational speed of the engine is made coincident with a designated rotational speed when the pressure value of pressure air fed to an engine is below a set value. CONSTITUTION:A pressure value P of pressurized air which is discharged from a pressurized air supply unit 4 such as, for example, a vane pump and injected into an engine 1 and which is detected by a pressure detector 5, is delivered to an air-fuel ratio control section 7 and a pressure control section 8. The air-fuel ratio control section 7 calculates an amount of supply fuel per unit time in accordance with the pressure value P and a rotational speed N detected by a detector 3, to control a fuel pump 6 for producing a necessary amount of fuel maintain a reasonable air-fuel ratio. Further, the pressure control section 8 receives the above-mentioned values P, N and a designated rotational speed M corresponding to the operated degree of an accelerator, and controls a motor 9 for driving the supply unit 4 in such a way that the speed of the motor 9 is increased when the pressure value P is within an allowable range and the rotational speed N is less than the designated rotational speed M. |
