| 摘要 |
PURPOSE: A method and device for controlling fuel quantity of gasoline direct injection engine are provided to control the compensation of an air fuel ratio by applying the environment condition of a GDI engine according to the spray mode switching of gasoline direct injection. CONSTITUTION: A device for controlling fuel quantity of gasoline direct injection engine comprises a water temperature sensor(101), an engine RPM sensor(102), an air flow sensor(103), an atmospheric pressure sensor(104), a pneumatic pressure sensor(105) and a controller(106). The water temperature sensor detects the temperature of the cooling water circulating the engine. The engine RPM sensor detects the RPM of the engine. The air flow sensor detects the air volume provided to a combustion chamber. The atmospheric pressure sensor detects the atmospheric pressure of operation are. The pneumatic pressure sensor detects the pneumatic pressure provided to the combustion chamber. The controller turns the engine on based on target air-fuel ratio. |
