The Influence of Dynamic Engine Model Parameters on Crankshaft Instantaneous Angular Speed - Sensitivity and Error Analysis
Апстракт
Most frequently used approach to describe combustion process in IC engines is based on Wiebe function. Its parameters are strongly influenced by geometric and in-cylinder gas- and thermodynamic processes and can’t be predicted easily and with sufficient accuracy using available empirical relations. Along with deterministic methods lacking in systematic approach, indirect analysis methods based on minimization of error between simulated and measured in-cylinder pressure have been successfully demonstrated. In this paper the same concept is introduced to identify combustion model parameters of a multi-cylinder SI engine based on box constrained Levenberg-Marquardt minimization of nonlinear Least Squares (LSQ) given for measured and simulated instantaneous crankshaft angular speed determined from the solution of the engine dynamics torque balance equation. For predictions of gas pressure and engine torque, a nonlinear, detailed, angle resolved twozone, zero-dimensional multi-cylinder SI e...ngine combustion model has been developed as well as a detailed analytical component model of engine friction and mechanical losses. The models are used to analyse the influences of engine combustion and dynamics model parameters on instantaneous crankshaft speed and to investigate biases in measurement in order to recognize and establish the constraints in process of combustion model parameters identification.
Кључне речи:
Spark Ignition Engine / two-zone model / mechanical losses / instantaneous crankshaft speed / optimizationИзвор:
International Congress Motor Vehicles & Motors 2012, 2012, 173-185Издавач:
- Faculty of Engineering, University of Kragujevac
Финансирање / пројекти:
- Истраживање и развој алтернативних погонских система и горива за градске аутобусе и комунална возила ради побољшања енергетске ефикасности и еколошких карактеристика (RS-MESTD-Technological Development (TD or TR)-35042)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Popović, Slobodan AU - Tomić, Miroljub V. AU - Miljić, Nenad AU - Kitanović, Marko AU - Mrđa, Predrag D. PY - 2012 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4601 AB - Most frequently used approach to describe combustion process in IC engines is based on Wiebe function. Its parameters are strongly influenced by geometric and in-cylinder gas- and thermodynamic processes and can’t be predicted easily and with sufficient accuracy using available empirical relations. Along with deterministic methods lacking in systematic approach, indirect analysis methods based on minimization of error between simulated and measured in-cylinder pressure have been successfully demonstrated. In this paper the same concept is introduced to identify combustion model parameters of a multi-cylinder SI engine based on box constrained Levenberg-Marquardt minimization of nonlinear Least Squares (LSQ) given for measured and simulated instantaneous crankshaft angular speed determined from the solution of the engine dynamics torque balance equation. For predictions of gas pressure and engine torque, a nonlinear, detailed, angle resolved twozone, zero-dimensional multi-cylinder SI engine combustion model has been developed as well as a detailed analytical component model of engine friction and mechanical losses. The models are used to analyse the influences of engine combustion and dynamics model parameters on instantaneous crankshaft speed and to investigate biases in measurement in order to recognize and establish the constraints in process of combustion model parameters identification. PB - Faculty of Engineering, University of Kragujevac C3 - International Congress Motor Vehicles & Motors 2012 T1 - The Influence of Dynamic Engine Model Parameters on Crankshaft Instantaneous Angular Speed - Sensitivity and Error Analysis EP - 185 SP - 173 UR - https://hdl.handle.net/21.15107/rcub_machinery_4601 ER -
@conference{ author = "Popović, Slobodan and Tomić, Miroljub V. and Miljić, Nenad and Kitanović, Marko and Mrđa, Predrag D.", year = "2012", abstract = "Most frequently used approach to describe combustion process in IC engines is based on Wiebe function. Its parameters are strongly influenced by geometric and in-cylinder gas- and thermodynamic processes and can’t be predicted easily and with sufficient accuracy using available empirical relations. Along with deterministic methods lacking in systematic approach, indirect analysis methods based on minimization of error between simulated and measured in-cylinder pressure have been successfully demonstrated. In this paper the same concept is introduced to identify combustion model parameters of a multi-cylinder SI engine based on box constrained Levenberg-Marquardt minimization of nonlinear Least Squares (LSQ) given for measured and simulated instantaneous crankshaft angular speed determined from the solution of the engine dynamics torque balance equation. For predictions of gas pressure and engine torque, a nonlinear, detailed, angle resolved twozone, zero-dimensional multi-cylinder SI engine combustion model has been developed as well as a detailed analytical component model of engine friction and mechanical losses. The models are used to analyse the influences of engine combustion and dynamics model parameters on instantaneous crankshaft speed and to investigate biases in measurement in order to recognize and establish the constraints in process of combustion model parameters identification.", publisher = "Faculty of Engineering, University of Kragujevac", journal = "International Congress Motor Vehicles & Motors 2012", title = "The Influence of Dynamic Engine Model Parameters on Crankshaft Instantaneous Angular Speed - Sensitivity and Error Analysis", pages = "185-173", url = "https://hdl.handle.net/21.15107/rcub_machinery_4601" }
Popović, S., Tomić, M. V., Miljić, N., Kitanović, M.,& Mrđa, P. D.. (2012). The Influence of Dynamic Engine Model Parameters on Crankshaft Instantaneous Angular Speed - Sensitivity and Error Analysis. in International Congress Motor Vehicles & Motors 2012 Faculty of Engineering, University of Kragujevac., 173-185. https://hdl.handle.net/21.15107/rcub_machinery_4601
Popović S, Tomić MV, Miljić N, Kitanović M, Mrđa PD. The Influence of Dynamic Engine Model Parameters on Crankshaft Instantaneous Angular Speed - Sensitivity and Error Analysis. in International Congress Motor Vehicles & Motors 2012. 2012;:173-185. https://hdl.handle.net/21.15107/rcub_machinery_4601 .
Popović, Slobodan, Tomić, Miroljub V., Miljić, Nenad, Kitanović, Marko, Mrđa, Predrag D., "The Influence of Dynamic Engine Model Parameters on Crankshaft Instantaneous Angular Speed - Sensitivity and Error Analysis" in International Congress Motor Vehicles & Motors 2012 (2012):173-185, https://hdl.handle.net/21.15107/rcub_machinery_4601 .