Study on Calibration Technique of Commercial Vehicles SCR System Based on MAP Diagram
Selective Catalytic Reduction (SCR) technology is an effective measure to reduce NOx emissions of diesel for commercial vehicles. The purifying effect of Urea-SCR exhaust gas purification device is related to calibration of the parameter of urea control system. Based on MAP diagram , the calibration method of urea spray control system in Urea-SCR system was studied on. Through verifications of ESC and ETC,it is reflected that calibrated MAP diagram can effectively reduce NOx emissions of diesel if used in the control system and emissions could meet the standards of 4th and 5th stage national emission regulation.
G. T. Yao et al., "Study on Calibration Technique of Commercial Vehicles SCR System Based on MAP Diagram", Applied Mechanics and Materials, Vols. 229-231, pp. 2643-2647, 2012