Engine control, apparatus for a multicylinder engine

An engine control apparatus for a multicylinder engine including injection pulse width-setting means for setting an injection pulse width for an injection valve situated in each cylinder based on signals output from engine operational condition-detection means situated in a vehicle;

• wherein said injection pulse width-setting means includes engine starting injection pulse-setting means for setting an injection pulse width for each cylinder in the engine starting operation, wherein said injection pulse width-correction means determines a correction coefficient for each cylinder, to said basic injection pulse width, at the second cycle in the engine starting operation and as engine starting injection pulse setting means adjusts the injection pulse or an injection amount at each cylinder second cycle.

An engine control apparatus for a multicylinder engine including injection pulse width-setting means for setting an injection pulse width for an injection valve situated in each cylinder based on signals output from engine operational condition-detection means situated in a vehicle;

• wherein said injection pulse width-setting means includes engine starting injection pulse-setting means for setting an injection pulse width for each cylinder in the engine starting operation, wherein said injection pulse width-correction means determines injection pulse widths for said respective cylinders based on a correction coefficient map which has been obtained in advance.

An engine control apparatus for a multicylinder engine including injection pulse width-setting means for setting an injection pulse width for an injection valve situated in each cylinder based on signals output from engine operational condition-detection means situated in a vehicle;

• wherein said injection pulse width-setting means includes engine starting injection pulse-setting means for setting an injection pulse width for each cylinder in the engine starting operation, wherein said injection pulse width-correction means determines an injection pulse width for each cylinder based on the pressure in an air-intake pipe at the first cycle, and a pressure difference between the pressure in said air-intake pipe at the previous cycle and that at the current cycle.

An engine control apparatus for a multicylinder engine including injection pulse width-setting means for setting an injection pulse width for an injection valve situated in each cylinder based on signals output from engine operational condition-detection means situated in a vehicle;

• wherein said injection pulse width-setting means includes engine starting injection pulse-setting means for setting an injection pulse width for each cylinder in the engine starting operation, wherein said injection pulse width-correction means determines an injection pulse widths for each cylinder based on the engine rotational speed at the first cycle, and an engine rotational speed difference between the at the previous cycle and that at the current cycle.