Patent ID: 9464586
Filing Date: 2016-10-11
CPC Classification: F02B,F02D,F02M,Y02T

Claim Text:
1. A turbocharged internal combustion engine having an exhaust gas recirculation (EGR) control system of an engine, the control system comprising: an exhaust turbocharger having a turbine disposed in an exhaust passage of the engine and a compressor disposed in an intake passage; an intercooler disposed in a part of the intake passage downstream of the compressor; a low-pressure EGR passage connecting a part of the exhaust passage downstream of the turbine to a part of the intake passage upstream of the compressor; a low-pressure EGR valve disposed in the low-pressure EGR passage and for changing a cross-sectional area of the low-pressure EGR passage; a high-pressure EGR passage connecting a part of the exhaust passage upstream of the turbine to a part of the intake passage downstream of the intercooler; a high-pressure EGR valve disposed in the high-pressure EGR passage and for changing a cross-sectional area of the high-pressure EGR passage; a valve controller that adjusts openings of the low-pressure EGR valve and the high-pressure EGR valve, the valve controller being operatively coupled to the low-pressure EGR valve and the high-pressure EGR valve; and a gear range detector for detecting a gear range of a transmission of a vehicle in which the engine is installed;