| 摘要 |
PURPOSE:To ensure always satisfactory accelerating performance in a means for correcting the increment of fuel injection amount immediately after acceleration by increasing warming-up acceleration increment of fuel when air fuel ratio becomes lean in increasing warming-up acceleration. CONSTITUTION:A control circuit 50 is provided in which the basic fuel injection amount is figured out according to the outputs of an air flow meter 14 and a crank angle sensor 44, while being corrected according to the outputs of an O2 sensor 40, a cooling water temperature sensor 46, etc., so that the output of valve opening time signal is sent to an injector 30. In this case, fuel injection amount is increased up to warming-up acceleration increment correcting value read out of a water temperature table according to cooling water temperature immediately after acceleration in response to the output of an idle contact of a throttle sensor 24. And in this increase of injection amount, when the air fuel ratio of the output of the O2 sensor 40 is leaner than the stoichiometric air fuel ratio, the warming-up acceleration increment is controlled to be increased until the air fuel ratio becomes rich. |
