Study on the effect of EGR control parameters on turbocharged diesel engine

Under transient conditions, the emission of turbocharged diesel engine will deteriorate to a certain extent, and adoption EGR is also factor leading increase some pollutants. For this reason, high pressure common rail inter-cooled heavy duty was used study influence closed-loop control method on performance under typical conditions with constant speed torque increasing in 5s. The results show: NOx can not be effectively reduced when air input as feedback parameter; When intake oxygen concentration parameter, smoke sharply; exhaust deterioration less, peak 15.8%. It has better compromise relationship fuel consumption, parameter for optimization.