초록 ▼

A method for controlling a supercharged engine, that includes determining an overlap of valves by opening a supercharged non-fuel-containing air inlet valve and closing an exhaust valve before the exhaust phase of an engine cylinder and in the vicinity of the top dead center (TDC), actuating a block

A method for controlling a supercharged engine, that includes determining an overlap of valves by opening a supercharged non-fuel-containing air inlet valve and closing an exhaust valve before the exhaust phase of an engine cylinder and in the vicinity of the top dead center (TDC), actuating a blocking means for blocking a supercharged non-fuel-containing air intake means to admit supercharged air flowing in the supercharged non-fuel-containing air intake means into a chamber to scavenge residual burned gases when a pressure of the supercharged non-fuel-containing air is greater than a pressure of the exhaust gases, and actuating the blocking means to shut off the supercharged air flowing from the supercharged non-fuel-containing intake means into the chamber when pressure of the supercharged non-fuel-containing air is less than pressure of the exhaust gases.

대표청구항 ▼

The invention claimed is: 1. A method for controlling a supercharged engine, in particular an indirect injection engine, the supercharged engine comprising at least a controller and sensors, one cylinder having a combustion chamber, at least one supercharged fuel-containing air intake means with a

The invention claimed is: 1. A method for controlling a supercharged engine, in particular an indirect injection engine, the supercharged engine comprising at least a controller and sensors, one cylinder having a combustion chamber, at least one supercharged fuel-containing air intake means with a supercharged fuel-containing inlet valve, a supercharged non-fuel-containing air intake means with a supercharged non-fuel-containing air inlet valve, and at least one burned gas exhaust means with an exhaust valve, the method comprising: determining an overlap of the valves by opening the supercharged non-fuel-containing air inlet valve and closing the exhaust valve before the exhaust phase of an engine cylinder and in the vicinity of the top dead center (TDC); actuating a blocking means for blocking the supercharged non-fuel-containing air intake means to admit supercharged air flowing in the supercharged non-fuel-containing air intake means into the chamber to scavenge residual burned gases when a pressure of the supercharged non-fuel-containing air is greater than a pressure of the exhaust gases; and actuating the blocking means to shut off the supercharged air flowing from the supercharged non-fuel-containing intake means into the chamber when pressure of the supercharged non-fuel-containing air is less than pressure of the exhaust gases. 2. The method according to claim 1, further comprising keeping the supercharged non-fuel-containing air inlet valve in the open position at least during the scavenging of the residual burned gases. 3. The method according to claim 1, further comprising closing the supercharged non-fuel-containing air inlet valve at the end of admitting supercharged air into the chamber. 4. The method according to claim 1, further comprising opening the supercharged non-fuel-containing air inlet valve when exhaust valve closes. 5. The method according to claim 1, further comprising keeping the blocking means in the open position as long as the pressure of supercharged non-fuel-containing air is greater than the pressure of the exhaust gases. 6. The method according to claim 1, further comprising keeping the blocking means in the closed position as long as the pressure of supercharged non-fuel-containing air is less than the pressure of the exhaust gases. 7. A method for controlling a supercharged engine, in particular an indirect injection engine, the supercharged engine comprising at least a controller and sensors, one cylinder having a combustion chamber, at least one supercharged fuel-containing air intake means with a supercharged fuel-containing inlet valve, a supercharged non-fuel-containing air intake means with a supercharged non-fuel-containing air inlet valve, and at least one burned gas exhaust means with an exhaust valve, the method comprising: determining an overlap of the valves by opening the supercharged non-fuel-containing air inlet valve and closing the exhaust valve before the exhaust phase of an engine cylinder and in the vicinity of the top dead center (TDC); opening a blocking means for blocking the supercharged non-fuel-containing air intake means to admit supercharged air flowing in the supercharged non-fuel-containing air intake means into the chamber to scavenge residual burned gases when a pressure of the supercharged non-fuel-containing air is greater than a pressure of the exhaust gases; and closing the blocking means to close the supercharged air flowing from the supercharged non-fuel-containing intake means into the chamber when pressure of the supercharged non-fuel-containing air is less than pressure of the exhaust gases.