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Engine Oil Viscometer Based on Oil Pressure Sensor
Technical Paper
2006-01-0701
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A methodology for measuring oil viscosity in an internal combustion engine has been developed that is based on measured values of oil pressure and oil temperature at a relatively low engine speed near idle. Engine oil pressure results from the resistance of the oil to flow under the pumping action of the oil pump. The resistance to flow, in turn, is a function of both the viscosity of the oil and the flow rate. At a constant oil flow rate, a higher oil viscosity will result in a higher oil pressure. Oil viscosity is an important factor in determining the ability of the oil to provide effective lubrication and, for example, can be used as an indicator of the need to change the oil. This report describes the operational principles of the methodology for determining engine oil viscosity and a proof of concept based on a simple vehicle test.
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Citation
Han, T., Wang, S., and Krage, M., "Engine Oil Viscometer Based on Oil Pressure Sensor," SAE Technical Paper 2006-01-0701, 2006, https://doi.org/10.4271/2006-01-0701.Also In
References
- Smolenski D. J. Schwartz S. E. “Automotive Engine-Oil Condition Monitoring,” Handbook of Lubrication and Tribology III 17 32 1993
- Smolenski D. J. Schwartz S. E. “Development of an automatic oil-change system,” SAE paper number 870403 1987
- Irion E. Land K. Guriter T. Klein M. “Oil-Quality Prediction and Oil-Level Detection with the TEMIC QLT-Sensor Leads to Variable Maintenance Interval,” SAE paper number 970847 1997
- Wang S. S. Lee H. S. Smolenski D. J. “The Development of In Situ Electrochemical Oil-Condition Sensors,” Sensors & Actuators: B. Chemical 17 179 1994
- Wang S. S. Lee H. S. McGrath P. B. Staley D. R. “Oil Sensor Systems & Methods of Qualitatively Determining Oil Type & Condition,” Dec. 28 1993
- Manco S. Nervengna N. Rundo M. “Gerotor Lubricating Oil Pump for IC Engines,” SAE Paper number 982689 1998
- Tseregounis S. I. Viola M. B. Paranjpe R. S. “Determination of bearing oil film thickness (BOFT) for various engine oils in an automotive gasoline engine using capacitance measurements and analytical predictions,” GM R&D Report 8826 1998