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Correlation analysis of factors influencing the electronic unit pump cycle fuel injection quantity under overall operating conditions for diesel engines

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Abstract

Electronic unit pump (EUP) can satisfy both diesel engine emission legislation and fuel economy by improving injection pressure and numerical control. Fluctuations in cycle fuel injection quantity (CFIQ) of EUP determine the coherence and stability of the EUP fuel injection system. The EUP simulation model is developed in the AMESim environment. The method for the simulation experiment is designed in the MODDE environment using the design of experiments method. The results of the simulation reveal the variation laws of correlation between parameters with interaction or no interaction under overall operating conditions of diesel engines. In addition, the results also show the EUP system is a complex nonlinear system. Under overall operating conditions, all the characteristic parameters, such as fuel supply pressure, cam profile velocity, control valve lift, injector opening pressure, injector needle lift, and injector flow coefficient, have significant correlation with CFIQ. The interacting first-order factors exhibit the most significant correlation with CFIQ. The self-interacting second-order factors have significant secondary correlation with CFIQ.

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Authors and Affiliations

  1. College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, China

    Yao Chong, Fan Li-yun, Song En-zhe & Tian Bing-qi

  2. Internal Combustion Engine Institute, Dalian University of Technology, Dalian, 116024, China

    Dong Quan

Authors
  1. Yao Chong
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  2. Fan Li-yun
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  3. Dong Quan
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  4. Song En-zhe
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  5. Tian Bing-qi
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Corresponding author

Correspondence to Yao Chong.

Additional information

Recommended by Associate Editor Kyoung Dong Min

Yao Chong received his B.S. degree in Communication and Transportation Engineering and M.S. degree in Power Machinery and Engineering from Harbin Engineering University, China, in 2003 and 2006, respectively. Mr. Yao is currently a lecturer at College of Power and Energy Engineering at Harbin Engineering University, China. His research interests include diesel control and fuel injection system design and simulation.

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Chong, Y., Li-yun, F., Quan, D. et al. Correlation analysis of factors influencing the electronic unit pump cycle fuel injection quantity under overall operating conditions for diesel engines. J Mech Sci Technol 26, 2929–2939 (2012). https://doi.org/10.1007/s12206-012-0704-0

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  • DOI: https://doi.org/10.1007/s12206-012-0704-0

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