Simulation on the Pressure Control of Common Rail of an In-Cylinder Direct-Injection CNG Engine
Publication: International Conference on Transportation Engineering 2009
Abstract
The paper put forwards and designs high-pressure common-rail fuel injection system based on technology characteristics of in-cylinder and direct-injection CNG engine, and a model of high-pressure common-rail for CNG engine is built with AMEsim software. For researching the dynamic characteristics of high-pressure common-rail system of CNG engine, the influences of speed, common rail volume, aspect ratio and rail pressure on pressure fluctuation amplitude were synthetically analyzed. At the controlling aim of pressure fluctuation amplitude, a compound controller based on cerebellar model articulation controller(CMAC)neural network and PD is presented and finally the model of control system was built with MATLAB/Simulink. The co-simulation results show that the simulation system can simulate the actual working process of the high-pressure common-rail system for CNG engine and that the used control strategy can meet the demands of flexible control of fuel injection quantity and pressure. Accordingly, the system lays the foundation for researching high-pressure direct iniection CNG engine.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Computer programming
- Computer software
- Computing in civil engineering
- Continuum mechanics
- Control systems
- Cylinders
- Dynamic pressure
- Dynamics (solid mechanics)
- Energy engineering
- Energy sources (by type)
- Engineering fundamentals
- Engineering mechanics
- Engines
- Equipment and machinery
- Fuels
- Geometry
- Infrastructure
- Mathematics
- Models (by type)
- Non-renewable energy
- Pressure (type)
- Rail transportation
- Simulation models
- Solid mechanics
- Systems engineering
- Systems management
- Transportation engineering
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