Indicate torque estimation for turbocharged diesel engine based on the instantaneous speed

Gang Li; Ying Huang; Fu Jun Zhang; Meng Xia

doi:10.16236/j.cnki.nrjxb.201503039

Indicate torque estimation for turbocharged diesel engine based on the instantaneous speed

Gang Li, Ying Huang, Fu Jun Zhang, Meng Xia

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

First the calculation formula of average indicated torque has been derived from the 1 order amplitude and phase of cylinder pressure. Then the linear relationship between 1 order cylinder pressure amplitude and firing order engine speed amplitude has been obtained by experimental study. Meanwhile, 1 order cylinder pressure phase can be calculated by intake pressure, 1 order cylinder pressure amplitude and 1 order combustion cylinder pressure phase. Finally by using DSP system, the real-time calculation of firing order engine speed amplitude can be realized. Experimental results show that the relative average estimation error is 3.07% in the rapid torque increase and decrease process.

Original language	English
Pages (from-to)	272-278
Number of pages	7
Journal	Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)
Volume	33
Issue number	3
DOIs	https://doi.org/10.16236/j.cnki.nrjxb.201503039
Publication status	Published - 25 May 2015

Keywords

Discrete Fourier transform
Instantaneous speed
Torque estimation
Turbocharged diesel engine

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10.16236/j.cnki.nrjxb.201503039

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title = "Indicate torque estimation for turbocharged diesel engine based on the instantaneous speed",

abstract = "First the calculation formula of average indicated torque has been derived from the 1 order amplitude and phase of cylinder pressure. Then the linear relationship between 1 order cylinder pressure amplitude and firing order engine speed amplitude has been obtained by experimental study. Meanwhile, 1 order cylinder pressure phase can be calculated by intake pressure, 1 order cylinder pressure amplitude and 1 order combustion cylinder pressure phase. Finally by using DSP system, the real-time calculation of firing order engine speed amplitude can be realized. Experimental results show that the relative average estimation error is 3.07\% in the rapid torque increase and decrease process.",

keywords = "Discrete Fourier transform, Instantaneous speed, Torque estimation, Turbocharged diesel engine",

author = "Gang Li and Ying Huang and Zhang, \{Fu Jun\} and Meng Xia",

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doi = "10.16236/j.cnki.nrjxb.201503039",

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journal = "Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)",

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TY - JOUR

T1 - Indicate torque estimation for turbocharged diesel engine based on the instantaneous speed

AU - Li, Gang

AU - Huang, Ying

AU - Zhang, Fu Jun

AU - Xia, Meng

PY - 2015/5/25

Y1 - 2015/5/25

N2 - First the calculation formula of average indicated torque has been derived from the 1 order amplitude and phase of cylinder pressure. Then the linear relationship between 1 order cylinder pressure amplitude and firing order engine speed amplitude has been obtained by experimental study. Meanwhile, 1 order cylinder pressure phase can be calculated by intake pressure, 1 order cylinder pressure amplitude and 1 order combustion cylinder pressure phase. Finally by using DSP system, the real-time calculation of firing order engine speed amplitude can be realized. Experimental results show that the relative average estimation error is 3.07% in the rapid torque increase and decrease process.

AB - First the calculation formula of average indicated torque has been derived from the 1 order amplitude and phase of cylinder pressure. Then the linear relationship between 1 order cylinder pressure amplitude and firing order engine speed amplitude has been obtained by experimental study. Meanwhile, 1 order cylinder pressure phase can be calculated by intake pressure, 1 order cylinder pressure amplitude and 1 order combustion cylinder pressure phase. Finally by using DSP system, the real-time calculation of firing order engine speed amplitude can be realized. Experimental results show that the relative average estimation error is 3.07% in the rapid torque increase and decrease process.

KW - Discrete Fourier transform

KW - Instantaneous speed

KW - Torque estimation

KW - Turbocharged diesel engine

UR - http://www.scopus.com/inward/record.url?scp=84936771334&partnerID=8YFLogxK

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DO - 10.16236/j.cnki.nrjxb.201503039

M3 - Article

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SN - 1000-0909

VL - 33

SP - 272

EP - 278

JO - Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)

JF - Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)

IS - 3

ER -

Indicate torque estimation for turbocharged diesel engine based on the instantaneous speed

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Keywords

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