This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Simulation Tools for Development of Advanced Engine Braking and Variable Valve Actuation Systems
Technical Paper
2002-01-0375
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Simulation tools are essential for the development of advanced engine braking and variable valve actuation systems. GT-Power with a valve lift user model, which includes effects such as valve-train compliance, is used to predict engine performance, valve lift, and cylinder pressure. MATLAB/Simulink with a hydraulic/valve-train dynamic library is used to evaluate factors relevant to system design such as hydraulic circuit pressures, cam follow, valve-seating velocity, and parasitic loss. CFD is used in hydraulic component design and to provide flow resistance data for the system simulation. FEA is used together with the system simulation to evaluate the design durability, including prediction of impact loads. These tools have been applied to the development of a wide range of compression-release braking and variable valve actuation systems, including recent lost-motion and common-rail designs.
Recommended Content
Authors
Topic
Citation
Schwoerer, J., Huang, S., and Trzaska, G., "Simulation Tools for Development of Advanced Engine Braking and Variable Valve Actuation Systems," SAE Technical Paper 2002-01-0375, 2002, https://doi.org/10.4271/2002-01-0375.Also In
References
- Yang, Z. “A Study of Two-Stroke Engine Braking for HD Diesel Engines,” SAE Paper 2002-01-0487
- Knecht, W. “Potential of Variable Valve Actuation in Diesel Engines for Light Duty Vehicles,” Paper No. 20A2009, ATA Intl. Symposium on The Future of Diesel Engine Technology for Passenger Cars Costa Smerelda, Italy Oct. 2000
- Lancefield T. Methley I. Räse U. Kuhn T. “The Application of Variable Event Valve Timing to a Modern Diesel Engine” SAE Paper 2000-01-1229
- Edwards, S. P. Frankle, G. R. Wirbeleit, F. Raab, A. “The Potential of a Combined Miller Cycle and Internal EGR Engine for Future Heavy Duty Truck Applications,” SAE Paper 980180
- Faik, S. Witteman, H. “Modeling of Impact Dynamics: A Literature Survey,” 2000 International ADAMS User Conference
- Karidis J.P. Turns S.R. “Fast-Acting Electromagnetic Actuators-Computer Model Development and Verification” SAE Paper 820202
- Wylie, E. B. Streeter, V. L. Suo, L. Fluid Transients in Systems Prentice Hall Englewood Cliffs, NJ 1993
- Idelchik, I. E. Handbook of Hydraulic Resistance 2nd Edition Hemisphere Publishing Corp. 1986
- Magorien, V. G. “How Hydraulic Fluids Generate Air,” Hydraulics and Pneumatics June 1968
- Totten, G. E. Sun, Y. H. Bishop, R. J. Jr. “Hydraulic Fluids: Foaming, Air Entrainment, and Air Release - A Review,” SAE Paper 972789
- Glassey, S. F. Stockner, A. R. Flinn, M. A. “HEUI - A New Direction for Diesel Engine Fuel Systems,” SAE Paper 930270