CONTROL DEVICE FOR GASOLINE ENGINE

摘要

A gasoline engine includes an electric heater, which is embedded in a port-type fuel injection valve and heats the fuel in the fuel injection valve. An electronic control device heats the fuel by means of the electric heater when the engine is cold. When the fuel is not heated by the electric heater, the electronic control device controls the fuel injection valve such that the engine rotational speed NE is a second prescribed value N2 which is higher than the idle rotational speed when the engine is warm. When idle running is performed when the engine is cold and the fuel injected from the fuel injection valve is heated by the electric heater, the amount Q of fuel injected by the fuel injection valve is controlled such that the engine rotational speed NE is less than the second prescribed value N2.

主权项

1. A gasoline engine controller that controls a gasoline engine including an electric heating device that heats fuel in a portion of a fuel supply line located at an upstream side of an injection hole of a fuel injection valve, wherein
the controller heats the fuel with the heating device when the engine is cold, and when the engine is cold and idling, the amount of fuel injected from the fuel injection valve is controlled so that the engine speed when the fuel injected from the fuel injection valve is heated by the heating device is less than the engine speed when the fuel injected from the fuel injection valve is not heated by the heating device.