| 摘要 |
PURPOSE:To reduce a change of air-fuel ratio and to suppress a change of the exhaust gas characteristic, by detecting a will of the driver through an accelerator pedal angle while calculating a supply air amount and a fuel amount simultaneously in accordance with the detection result and controlling a feed of air and injection of fuel to an engine. CONSTITUTION:During operation of an engine, a Qa arithmetic part 8 calculates an air amount Qa corresponding to an accelerator pedal angle thetaac, while an A/F arithmetic part 9 recognizes a position of an accelerator pedal and its movement by the angle thetaac and its deviation, and A/F is calculated on the basis of both the variables. And after a Qf arithmetic part 9 calculates a fuel amount Qf by these Qa and A/F, an injector is controlled by calculating the injection time Ti in a Ti arithmetic part 15 from the fuel amount Qf and an engine speed N. While on the basis of the air amount Qa, a throttle valve control system 11, obtaining a throttle valve opening thetath, controls a throttle valve, in this way a feedback control of the control system 11 is performed in accordance with a deviation between the measured value QaA of a regulated air flow amount 12 and its target value Qa.
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