The GDI(Gasoline Direct Injection) engine needs to reduce emissions because emission standards has been strengthened recently(Eg. EURO6). For compling with new emission standards, the multi-injection of fuel method is commonly used in the GDI engine. ...
The GDI(Gasoline Direct Injection) engine needs to reduce emissions because emission standards has been strengthened recently(Eg. EURO6). For compling with new emission standards, the multi-injection of fuel method is commonly used in the GDI engine. However, a short injection time causes deviation of the fuel injection quantity and this deviation reduces the efficiency of fine dust emission.
This paper suggest a new fuel injector driver IC which reduces fine dust emissions through a new injector deviation compensation algorithm. The main designed concept is monitoring injector closing time and compensating the quantity of fuel injection by the proposed GDI injector driver IC.