GENERAL INFORMATION (EXHAUST GAS RECIRCULATION SYSTEM)
The
electronically controlled exhaust gas recirculation system consists of
an exhaust gas recirculation valve, engine-ECU and sensors.
The
exhaust gas recirculation valve aims at reducing the amount of NOx
(nitric oxide) discharge that increases with the rise in the exhaust gas
temperature. Thus, the engine-ECU optimally controls the exhaust gas
temperature in accordance with the operating conditions of the
engine.
To further improve the exhaust gas reduction performance, the
system provides the engine-ECU feedback on the exhaust gas recirculation
valve opening. Thus, it effects exhaust gas recirculation control to
optimize the operating conditions of the engine.
SYSTEM
DIAGRAM
