吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (01): 33-38.

• paper • Previous Articles     Next Articles

Comparative analysis of medinm-duty diesel engine emissions under BJCBC and ETC

GAO Ji-dong, QIN Kong-jian, LIANG Rong-liang, LI Meng-liang   

  1. China Automotive Technology and Research Center, Tianjin 300162, China
  • Received:2010-11-12 Online:2012-01-01 Published:2012-01-01

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Abstract:

In order to explore the effects of the testing condition on the PM and NOx emission characteristics from the diesel engine, a medium-duty automotive diesel engine complying with the China emission standard stage Ⅲ and a vehicle equipped with this engine were tested according to the European Transient Cycle(ETC) and the Beijing City Bus Cycle(BJCBC) which was developed from the actual driving conditions of Beijing buses. The testing results show that the driving cycle has significant effects on the particle size concentration distribution of PM emission, and the results by BJCBC is dramatically different from those by ETC. Therefore, the emission control calibration of the bus engine should be optimized according to BJCBC besides meeting the certification standards.

Key words: power machinery and engineering, diesel engine, Beijing city bus cycle, European transient cycle, emission characteristic

CLC Number: 

  • TK411.5


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