Patent ID: 9567886
Date: 2017-02-14
CPC Classifications: F01N,F02B,F02D,F02M,Y02T

Claim:
1. A method to control the temperature of the exhaust gases of a supercharged internal combustion engine ( 1 ) comprising a number of cylinders ( 3 ), an intake manifold ( 4 ), which is connected to the cylinders ( 3 ), an exhaust manifold ( 5 ), which is connected to the cylinders ( 3 ), as well, and feeds the exhaust gases produced by the combustion taking place inside the cylinders ( 3 ) to an exhaust system, and a turbocharger ( 12 ), which is provided with a turbine ( 13 ) and a supercharger ( 14 ); and a sensor ( 25 ), which measures the air/fuel ratio of the exhaust gases downstream of the exhaust manifold ( 5 ); the supercharged internal combustion engine ( 1 ), furthermore, is designed to permit the passage of air not involved in the combustion taking place inside the cylinders ( 3 ) from the intake manifold ( 4 ) directly into the exhaust pipe ( 10 ); the method comprises the steps of: determining the flow rate (m determining the minimum air/fuel ratio (λ detecting the air/fuel ratio (λ comparing the air/fuel ratio (λ controlling the supercharged internal combustion engine as a function of the comparison between the air/fuel ratio (λ