| 摘要 |
A method to control the temperature of the exhaust gases of a supercharged internal combustion engine (1), the method comprising: determining the minimum air/fuel ratio (» min ) of the exhaust gases downstream of the exhaust manifold (5) as a function of the flow rate (m air_scav ) of air that is not involved in the combustion taking place inside the cylinders (3) and flows directly from the intake manifold (4) into the exhaust pipe (10); detecting an air/fuel ratio (» meas ) of the exhaust gases downstream of the exhaust manifold (5) by means of a sensor (25); and controlling the supercharged internal combustion engine (1) as a function of the comparison between the air/fuel ratio (» meas ) of the exhaust gases detected by the sensor (25) and/or the minimum air/fuel ratio (» min ) of the exhaust gases with a number of threshold values (UTV OL_SCAV , UTV INHIB_SCAV , UTV LIMIT_SCAV, LTV OL_SCAV , LTV INHIB_SCAV , LTV LIMIT_SCAV , SV) . |
