| 摘要 |
PURPOSE:To improve an output by providing a port injector and an intake manifold injector, and drive-controlling these injectors being correlated to each other, in an FFV(Flexible Fuel Vehicle) engine which can be operated by gasoline, alcohol or mixed fuel thereof. CONSTITUTION:A permissible fuel injection pulse width Tfa of a fuel supply means (port injector) M4 is set by a permissible fuel injection pulse width setting means M7 being based on an engine speed obtained by an engine speed calculating means M6, while a fuel injection pulse width Ti is set by a fuel injection pulse width setting means M8 being based on outputs of an operation condition parameter detecting means M1 and an alcohol concentration detecting means M3. An intake manifold fuel supply means (intake manifold injector) M5 is driven by setting its fuel injection pulse width TiAS by an intake manifold fuel injection pulse width setting means M10 in accordance with a difference between Ti and Tfa, when a relation of Ti>=Tfa is discriminated in a fuel injection possibility discriminating means M9, while Tfa is applied to the fuel supply means M4. On the other hand, Ti is applied to the fuel supply means M4 when a relation of Ti<Tfa is obtained. |
