Combined diesel aftertreatment system for NO x and PM reduction in an MD diesel engine

Yutaka Murata*, Sadahito Tokui, Soichiro Watanabe, Yasuhiro Daisho, Hisakazu Suzuki, Hajime Ishii

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A urea SCR system was combined with a DPF system to reduce NO x and PM in a four litters turbocharged with intercooler diesel engine. Significant reductions in NO x were observed at low exhaust gas temperatures by increasing NH 3 adsorption quantity in the SCR catalyst. NH 3 adsorption control logic was developed for transient operation based on the NH 3 adsorption characteristics. It has been shown that NO x can be reduced by 75% at the average SCR inlet gas temperature of 158 deg.C by adopting the NH 3 adsorption control in the JE05 Mode.

Original languageEnglish
Title of host publicationFISITA World Automotive Congress 2008, Congress Proceedings - Future Powertrain Solutions
Number of pages13
Publication statusPublished - 2008
Event32nd FISITA World Automotive Congress 2008 - Munich
Duration: 2008 Sept 142008 Sept 19


Other32nd FISITA World Automotive Congress 2008


  • Aftertreatment
  • Catalyst
  • Diesel engine
  • NO
  • Urea SCR

ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering


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