| 摘要 |
PURPOSE:To realize appropriate fuel control regardless of environmental change, dispersion of parts and a change with the passage of time particularly at the time of transient operation by performing control through setting, as a standard model, one of dynamics of air quantity and fuel quantity sucked by an engine and having the other follow said model. CONSTITUTION:A transmission characteristic G1(z) exists between an air quantity signal S1 measured by means of an air flow meter and an air quantity Y1 actually sucked by means of a cylinder 6. Fuel of the quantity corresponding to a fuel injection signal S5, operation for which is performed by an operation device 17, is sucked by the cylinder 6 via another transmission characteristic G2(z). Air-to-fuel ratio of exhaust gas burnt in the cyliner 6 is detected by means of an oxygen sensor attached to an exhaust pipe, while said gas is fed back to the operation device 17 as an exhaust signal S3. Said device 17 performs operation of the fuel injection signal S5 so that an output Y2 of G2(z) coincides with the output Y1 of G1(z) in conformity to adaptation algorithm. Thus, adaptation control is performed. |
