This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Modeling the Components of an Internal Combustion Engine Using the Bond Graphs Technique
Annotation ability available
Sector:
Event:
SAE Brasil
Language:
English
Abstract
The mechanical part of an internal combustion engine has been modelled, using the Bond Graphs technique. Given the gas pressure inside the cylinder, the model provides the velocity and torque at the flywheel, as a function of the physical properties of the mobile parts of the engine.
The first model obtained was from the slider - crank mechanism for one degree of freedom, representing a mono cylindric engine. Using the modularity of the Bond Graphs technique, three identical models have been coupled, forming a four ILLEGIBLE
A valves' command system has been included and the damping coefficient, related with friction losses and the heat generation, was determined taking in consideration of the engine efficiency.
All the models have been simulated by computer and the results obtained confirms the experimental data known for commercial engines.
Authors
Topic
Citation
de Azevedo Neto, J. and Neto, M., "Modeling the Components of an Internal Combustion Engine Using the Bond Graphs Technique," SAE Technical Paper 921446, 1992, https://doi.org/10.4271/921446.Also In
References
- Karnopp, D. C. Rosenberg, R. “System Dynamics: a Unified Approach” New York Wiley-Interscience Publication 1975
- Karnopp, D. C. Rosenberg, R. “Introduction to Physical System Dynamics” New York McGraw-Hill Book Company 1983
- Azevedo Neto, J. M.
- Hrovat, D. Tobler, W. E. “Bond Graph Modeling of Automotive Power Trains” Journal of the Franklin Institute 328 o 516 623 662 1991
- Obert, E. F. “Internal Combustion Engines Analysis and Practice” Pennsylvania International Textbook Company 1945