| 摘要 |
PURPOSE:To make it possible to carry out complete combustion even when the load increases by providing a primary lagging circuit imparting a lag to the variation in the fuel quantity and a time constant setting function generator for setting a lagging time in the variation of the fuel quantity. CONSTITUTION:The time constant setting function generator 1 generates a time constant T in correspondence to the actual rotational speed obtained at a rotational speed detector 06. The primary lagging circuit 2 imparts a lag corresponding to a lag time of the variation in the air quantity to a signal from an adder- subtractor 017. An output signal of the primary lagging circuit 2 and a signal A' from the adder-subtractor 017 are computed of their deviation by an adder-subtractor 3. In a case where this deviation is positive, a signal which passes through a limiter 4 and has a shape identical to that of the output signal of the first lagging circuit 2 is transmitted to an actuator 09. As described above, since a lag is imparted to the fuel quantity variation corresponding to the lag in the air quantity variation, incomplete combustion due to the shortage in the air quantity when the load increases, can be prevented. |
