GDI GDI ENGINE FUEL INJECTION AMOUNT CONTROL DEVICE

摘要

The present invention discloses a method for controlling a gas fuel injection of a GDI engine. The present invention relates to a method for controlling a gas fuel injection control of a GDI engine by applying a gas dual fuel system configured by an MPI method to a fuel supply system of a GDI engine type, The injection timing and order of the gaseous fuel are controlled through the information sensed by the sensor which determines the injection and ignition of the gaseous fuel in the exhaust stroke of the immediately preceding cylinder so that the fuel supply is performed in the manifold direction (intake valve front end) The GDI engine improves the dual use of the fuel by improving the fuel supply switching of the dual fuel system, the timing of the supply of the gaseous fuel, and the output fluctuation due to the fuel characteristics.