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首页> 外文期刊>Thermal science >POSSIBILITIES TO IDENTIFY ENGINE COMBUSTION MODEL PARAMETERS BY ANALYSIS OF THE INSTANTANEOUS CRANKSHAFT ANGULAR SPEED
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POSSIBILITIES TO IDENTIFY ENGINE COMBUSTION MODEL PARAMETERS BY ANALYSIS OF THE INSTANTANEOUS CRANKSHAFT ANGULAR SPEED

机译：通过分析瞬时曲轴角度角速度确定发动机燃烧模型参数的可能性

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In this paper, novel method for obtaining information about combustion process in individual cylinders of a multi-cylinder Spark Ignition Engine based on instantaneous crankshaft angular velocity is presented. The method is based on robust box constrained Levenberg-Marquardt minimization of nonlinear Least Squares given for measured and simulated instantaneous crankshaft angular speed which is determined from the solution of the engine dynamics torque balance equation. Combination of in-house developed comprehensive Zero-Dimensional Two-Zone SI engine combustion model and analytical friction loss model in angular domain have been applied to provide sensitivity and error analysis regarding Wiebe combustion model parameters, heat transfer coefficient and compression ratio. The analysis is employed to evaluate the basic starting assumption and possibility to provide reliable combustion analysis based on instantaneous engine crankshaft angular speed. [Projekat Ministarstva nauke Republike Srbije, br. NPEE-290025 and TR-14074]
机译：提出了一种基于瞬时曲轴角速度的多缸火花点火发动机各个气缸燃烧过程信息的获取方法。该方法基于对发动机实测扭矩平衡方程的解确定的实测和模拟瞬时曲轴角速度给出的非线性最小二乘的鲁棒箱约束Levenberg-Marquardt最小化。结合内部开发的综合零维两区SI发动机燃烧模型和角域分析摩擦损失模型，对Wiebe燃烧模型参数，传热系数和压缩比进行灵敏度和误差分析。该分析用于评估基本启动假设和基于瞬时发动机曲轴角速度提供可靠燃烧分析的可能性。 [Projekat Ministarstva nauke Republike Srbije，br。 NPEE-290025和TR-14074]

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