This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Development of Data Capture/Analysis System for the Use in Cold Start Investigation
Annotation ability available
Sector:
Language:
English
Abstract
This system was developed to solve the problem of acquiring a large number of consecutive engine cycles of various parameters required to analyse the cold start/run-up behaviour of an engine, and display the acquired data in an easily digestible form.
Data is acquired using a 12 bit analog to digital converter at a wide acquisition rate up to a maximum of 500K sample/sec and to a memory depth of 2000K bin 16 bit reading/channel of dynamic RAM.
The acquired data can be displayed on an oscilloscope, a variety of Y/T or digital plotters or transferred to an IBM PC computer for further processing.
Various programs were developed for the IBM PC to analyse data for the whole cold start/run-up period. The system is capable of plotting the acquired parameters in three dimensional graph form, calculating the average speed for each of the engine cycles and performing a simple heat release analysis for each cycle.
The system was used in the analysis of the cold start and run-up behaviour of a 4 cylinder diesel engine. The engine was instrumented for cylinder pressure, fuel line pressure and needle lift for each cylinder, together with a sweep start and degree marks. The three dimensional graphs showing cylinder pressure for all four cylinders for 660 consecutive cycles reveal that one cylinder can accelerate the engine to flight speed with very limited assistance from the other cylinders.
The system proved to be a very useful tool for reducing the time required for the analysis of cold start/run-up data and may prove to be of great assistance in understanding the fundamental behaviour of a multi-cylinder engine during such a critical period.
Topic
Citation
Mina, T. and Bolsover, G., "The Development of Data Capture/Analysis System for the Use in Cold Start Investigation," SAE Technical Paper 890002, 1989, https://doi.org/10.4271/890002.Also In
References
- “A Versatile Oscilloscope/Microcomputer Based Data Handling System” Geyer S. M. Crouse M. E. Sommer H. J. Lestz S. S. SAE paper number 852069 1985
- “Recent Advances in Internal Combustion Engine Instrumentation with particular reference to High-Speed Data Acquisition and Automated Test Bed” Benson R. S. Pick R. SAE paper number 740695 1974
- “An Integrated Computing Facility for Data Acquisition and Analysis” Ray R. W. SAE, SEECO March 1983
- “On-board Data Acquisition System for Vehicle Research” McDonald Alan T. Blom Wayne G. SAE paper number 851680 1985
- “Acquisition and Interpretation of Diesel Engine Heat Release Data” Callahan Timothy J. Yost Douglas M. Rayan Thomas W. III SAE paper number 852068 1985
- “Microprocessor Based Data Acquisition for Analysis of Engine Performance” James John Murphy Jim Dosdall James Marko Kenneth SAE paper number 870386 1987
- “Development of Automobile Control and Data Acquisition Equipment Employing a 16 Bit Microcomputer” Amano M. Ishii J. Kurihara N. Sasyama T. Suda S. 16th ISATA Conference May 1987
- “Possibilities of Fast Data Acquisition System in Testing IC Engines” Van Hove W. Sierens R. 16th ISATA Conference May 1987
- “An In-vehicle Multi-channel Data Acquisition and Display System” Bauer Harry J. Leppek Keven G. SAE paper number 880477 1988
- “Data Acquisition System and Instrumentation for Monitoring Lean Burn Combustion on SI Engines” Agnew B. Tam I. I.Mech.E Seminar on Experimental Methods in Engine Research and Development 10 March 1988
- “Methods for Evaluating Requirements and Errors in Cylinder Pressure Measurement” Brown W. L. SAE paper number 670008 1967
- “Measurement and Analysis of Engine Pressure Data” Lancaster David R. Krieger Roger B. Lienesch John H. SAE paper number 750026 1975
- “Statistical Analysis of Pressure Indicator Data of an Internal Combustion Engine” Sanda Shougo Toda Tadahide Nohiro Hidetaka Konomi Toshiaki SAE paper number 770882 1977
- “On the Heat-Release Analysis of Diesel Engines: Effects of Filtering of Pressure Data” Theobald Mark A. Alkidas Alexandros C. SAE paper number 872059 1987
- “Evaluation of Pressure and Crank Angle Errors from Reciprocating Engine Indicator Diagrams” Lecuona Antonio Rodriguez Pedro A. SAE paper number 860027 1986
- “Cylinder Pressure Measurement and its use in Engine Research” Amann Charles A. SAE paper number 852067 1985
- “Cylinder Pressure Data Acquisition and Heat Release Analysis on a Personal Computer” Hayes T. K. Savage L. D. Sorenson S. C. SAE paper number 860029 1986
- “A detailed Study of the start and run-up behaviour of a multi-cylinder DI diesel engine” Mina T. I. I.Mech.E paper Second International Conference on “The Small Internal Combustion Engine 3-5 April 1989