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首页> 外文期刊>Energy Conversion & Management >New Indicated Mean Effective Pressure (IMEP) model for predicting crankshaft movement
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New Indicated Mean Effective Pressure (IMEP) model for predicting crankshaft movement

机译：用于预测曲轴运动的新的指示平均有效压力（IMEP）模型

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摘要

Indicated Mean Effective Pressure models (IMEP) are essential to estimate the indicated torque in internal combustion engine; they also provide important information about the mechanical efficiency of the engine thermodynamic cycle which describes the conversion of the fuel combustion energy into mechanical work. In the past, many researches were made to improve the IMEP prediction and measurement techniques at different engine operating conditions. In this paper, we proposed a detailed IMEP model which separately describes the IMEP-Low pressure and the IMEP-High pressure of a modern diesel engine; the IMEP is the direct subtraction result between these two variables. We firstly studied the evolution of the IMEPhp and IMEP_(LP) with respect to the engine's variables and then we deduced the variables of influence and the form of the equations that can be used to develop the models. Finally, the models' coefficients were determined based on experimental data collected on a steady state test bench and using the least square regression method. In addition, the IMEP_(Hp) model results were compared to transient experimental data collected on a chassis dynamometer test bench; the model results are in excellent agreement with the experimental data.
机译：指示平均有效压力模型（IMEP）对于估算内燃机的指示扭矩至关重要。它们还提供了有关发动机热力学循环的机械效率的重要信息，这些信息描述了燃料燃烧能转化为机械功的过程。过去，进行了许多研究来改进在不同发动机工况下的IMEP预测和测量技术。在本文中，我们提出了一个详细的IMEP模型，该模型分别描述了现代柴油机的IMEP低压和IMEP高压。 IMEP是这两个变量之间直接相减的结果。我们首先研究了IMEPhp和IMEP_（LP）关于发动机变量的演变，然后推导了影响变量和可用于开发模型的方程式。最后，根据在稳态测试台上收集的实验数据并使用最小二乘回归法确定模型的系数。此外，将IMEP_（Hp）模型结果与在底盘测功机测试台上收集的瞬态实验数据进行了比较；模型结果与实验数据吻合良好。

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  • 来源
    《Energy Conversion & Management》 |2011年第12期|p.3376-3382|共7页
  • 作者

    Rabih Omran; Rafic Younes; Jean-Claude Champoussin; Rachid Outbib;

  • 作者单位

    Laboratory of the Fluid Mechanics and Acoustics (LMFA), Ecole Centrale de lyon, France;

    Lebanese University, Faculty of Engineering, Campus of Hadath, Beirut, Lebanon, Laboratoire des Sciences et de I'Information des Systemes, Universite Aix-Marseille, France;

    Laboratory of the Fluid Mechanics and Acoustics (LMFA), Ecole Centrale de lyon, France;

    Laboratoire des Sciences et de I'Information des Systemes, Universite Aix-Marseille, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    diesel engines; indicated mean effective pressure (IMEP);

    机译：柴油发动机;指示平均有效压力（IMEP）;

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