This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
New Charging Model Using Variable Valve Train for HIL Simulation
Technical Paper
2011-01-1150
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Engine control units manage various conditions in an operating engine, including fuel injection, spark ignition and valve timing, in order to achieve the goals of high performance, high fuel efficiency and low emissions. Typically, engine models are necessary for developing engine control systems. Most mean value engine models (MVEM) are based on empirical volumetric efficiency, which contributes to calculating intake air flow rate. Therefore, they are not capable of simulating changes in valve lift and valve timing, and cannot be used for a variable valve train (VVT) engine. A method of calculating intake air flow rate with variable valve lift and valve timing is needed to adapt to the demands on VVT engine models.
An engine model is proposed that focuses on a charging model, developed by using a filling-and-emptying model to simulate the air exchange in an engine, including intake- and exhaust-air flows. Flow through valves is calculated according to the pressure drop between the cylinder and manifold, and the flow area of the valve opening and its flow coefficient. An important feature of the proposed engine model is its capability for real-time simulation. The model is verified with experimental data of volumetric efficiency and indicated mean effective pressure (IMEP). Finally, a hardware-in-the-loop (HIL) simulation is performed to depict the engine model's application.
Recommended Content
Authors
Citation
Wu, Y., Chen, B., Tsai, H., and Hsieh, F., "New Charging Model Using Variable Valve Train for HIL Simulation," SAE Technical Paper 2011-01-1150, 2011, https://doi.org/10.4271/2011-01-1150.Also In
References
- Hamilton, J. R. Falleur, J. “Opportunities for P/M in Variable Valve Timing Devices,” SAE Technical Paper 2004-01-0499 2004 10.4271/2004-01-0499
- Hong, H. Parvate-Patil, G. B. Gordon, B. “Review and Analysis of Variable Valve Timing Strategies-Eight Ways to Approach,” Proc. Inst. Mech. Eng. Part D-J. Automob. Eng. 218 1179 1200 2004
- Fontana, G. Galloni, E. “Variable Valve Timing for Fuel Economy Improvement in a Small Spark-Ignition Engine,” Appl. Energy 86 96 105 2009
- Kohany, T. Sher, E. “Using the 2nd Law of Thermodynamics to Optimize Variable Valve Timing for Maximizing Torque in a Throttled SI Engine,” SAE Technical Paper 1999-01-0328 1999 10.4271/1999-01-0328
- Weeks, R.W. Moskwa, J. J. “Automotive Engine Modeling for Real-Time Control Using MATLAB/SIMULINK,” SAE Technical Paper 950417 1995 10.4271/950417
- Dresner, T. Barkan, P. “A Review of Variable Valve Timing Benefits and Modes of Operation,” SAE Technical Paper 891676 1989 10.4271/891676
- Hendricks, E. Chevalier, A. Jensen, M. Sorenson, S. C. Trumpy, D. Asik, J. “Modeling of Intake Manifold Filling Dynamics,” SAE Technical Paper 960037 1996 10.4271/960037
- Mahrous, A-F. M. Potrzebowski, A. Wyszynski, M. L. Xu, H. M. Tsolakis, A. Luszcz, P. “A modeling study into the effects of variable valve timing on the gas exchange process and performance of a 4-valve DI homogeneous charge compression ignition (HCCI) engine,” Energy Conv. Manag. 50 393 398 2009
- Rask, E. Sellnau, M. “Simulation-Based Engine Calibration: Tools, Techniques, and Applications,” SAE Technical Paper 2004-01-1264 2004 10.4271/2004-01-1264
- Genzale, C. L. Kong, S. C. Reitz, R. D. “Modeling the Effects of Variable Intake Valve Timing on Diesel HCCI Combustion at Varying Load, Speed, and Boost Pressure,” J. Eng. Gas. Turbines Power-Trans. ASME 130 5 052806-1 052806-8 2008
- Savaglio, C. Howe, R. M. Fadden, E. J. “Real-Time Simulation of an Engine Model and a Vehicle Model Using Asynchronous Simulation Techniques,” SAE Technical Paper 970510 1997 10.4271/970510
- Krisp, H. Lamberg, K. Leinfellner, R. “Automated Real-Time Testing of Electronic Control Units,” SAE Technical Paper 2007-01-0504 2007 10.4271/2007-01-0504
- Wu, Y. Y. Chen, B. C. Hsieh, F. C. “Modulization of Four-Stroke Single-Cylinder Spark-Ignition Air-Cooled Engine Models,” Proc. Inst. Mech. Eng. Part D-J. Automob. Eng. 221 1015 1026 2007
- Sinnamon, J. F. “Co-Simulation Analysis of Transient Response and Control for Engines with Variable Valvetrains,” SAE Technical Paper 2007-01-1283 2007 10.4271/2007-01-1283
- Yang, W. C. Glidewell, J. M. Tobler, W. E. Chui, G. K. “Dynamic modeling and analysis of automotive multi-port electronic fuel delivery system,” J. Dyn. Syst. Meas. Control-Trans. ASME 113 1 143 151 1991
- Moskwa, J. J. Hedrick, J. K. “Modeling and Validation of Automotive Engines for Control Algorithm Development,” J. Dyn. Syst. Meas. Control-Trans. ASME 114 278 285 1992
- Moskwa, J. J. “Estimation of Dynamic Fuel Parameters in Automotive Engine,” J. Dyn. Syst. Meas. Control-Trans. ASME 116 774 780 1994
- Drakunov, S. Izzoni, G. Wang, Y. Y. “On-Line Estimation of Indicated Torque in IC Engines using Nonlinear Observers,” SAE Technical Paper 950840 1995 10.4271/950840
- Wu, Y. Y. Chen, B. C. Shiao, Y. Hsieh, F. C. “Engine Modeling With Inlet and Exhaust Wave Action for Real Time Control,” ASME International Mechanical Engineering Congress and RD&D Exposition Washington D.C., USA 2003
- Wu, Y. Y. Chen, B. C. Hsieh, F. C. “Heat Transfer Model for Small-Scale Air-Cooled Spark Ignition Four-Stroke Engines,” Int. J. Heat and Mass Transfer 49 21-22 3895 3905 2006
- Hohenberg, G. F. “Advanced Approaches for Heat Transfer Calculations,” SAE Technical Paper 790825 1979 10.4271/790825
- Kouremenos, D. A. Rakopoulos, C. D. Hountalas, D. T. Zannis, T. K. “Development of a Detailed Friction Model to Predict Mechanical Losses at Elevated Maximum Combustion Pressures,” SAE Technical Paper 2001-01-0333 2001 10.4271/2001-01-0333
- Wu, Y. Y. Chen, B. C. Hsieh, F. C. Huang, M. L. Wu, Y. H. “Development of Hardware-In-the-Loop Simulation for Scooter Engine Control,” SAE Technical Paper 2006-01-0614 2006 10.4271/2006-01-0614