This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Evaluation of Cylinder Pressure Transducer Accuracy based upon Mounting Style, Heat Shields, and Watercooling
Technical Paper
2005-01-3750
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This investigation evaluated different pressure transducers in one cylinder to examine the combustion measurement differences between them simultaneously. There were a total of eleven transducers ranging in both diameter and type of transducer (piezo-electric, piezoresistive, and optical). Furthermore, the sensors differed in the methodology for minimizing signal distortion due to temperature. This methodology could take the form of various size mounting passages, heat shields, watercooling or heat transfer paths. To evaluate the sensors, different engine operating conditions were conducted, focusing at full load and low speeds. Other hardware configurations of the same engine family were used to exaggerate the combustion environment, specifically a tumble-motion plate and turbocharging. Metrics for accuracy of the sensors were based upon the variation of absolute and statistical combustion parameters, deviation to an exhaust absolute pressure sensor, comparison to other sensors during the combustion cycle, and variability of each sensor to itself during the combustion cycle. Finally sensors were evaluated for knock recognition.
Recommended Content
Authors
Citation
Soltis, D., "Evaluation of Cylinder Pressure Transducer Accuracy based upon Mounting Style, Heat Shields, and Watercooling," SAE Technical Paper 2005-01-3750, 2005, https://doi.org/10.4271/2005-01-3750.Also In
References
- Amann, C.A. Cylinder-Pressure Measurement and Its Use in Engine Research SAE Paper 852067
- Klimstra, J. The Optimum Combustion Phasing Angle- A Convenient Engine Tuning Criterion SAE Paper 852090
- Randolph, A.L. Cylinder Pressure Transducer Mounting Techniques to Maximize Data Accuacy SAE Paper 900171
- Rossell, E. Sierens, R. Baert, R.S.G. Evaluating Piezo-electric Transducer Response to Thermal Shock from In-cylinder Pressure Data SAE Paper 1999-01-0935
- Kuratle, R.F. Marki, B. Influencing Parameters and Error Sources During Indication on Internal Combustion Engines SAE Paper No 920233
- Randolph, A.L. Methods of Processing Cylinder-Pressure Transducer Signals to Maximize Data Accuarcy SAE paper 900170