吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (增刊): 128-0132.

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SCR urea dosing control strategy to meet China IV

ZHANG Jian-rui1,2,YU Xiu-min1,LI Kang2,LIU Jiang-wei2,QIN Ke-yin2,YIN Bao-zhi2,ZHANG Peng2   

  1. 1.College of Automotive Engineering, Jilin University, Changchun 130022, China ;2.R&D Center of FAW, Changchun 130011,China
  • Received:2009-11-17 Online:2010-09-01 Published:2010-09-01

Abstract:

Different factors which influence urea dosing control have been studied and a control model was established. The control strategies were realized by RCP and were validated on engine bench. Ammonia slip amount is very low by NOx transient control strategy. For both ESC and ETC cycle, China IV emission regulation were fulfilled.

Key words: power machinery and engineering, SCR, control strategy, NOx, transient control strategies

CLC Number: 

  • TK421
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