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Extended Range Air-to-Fuel Ratio Sensor
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 01, 1984 by SAE International in United States
Annotation ability available
An oxygen sensor based on electrochemical pumping is described which is capable of measuring with high sensitivity A/F over an extended range from very lean to very rich A/F values. The sensor output is approximately proportional to A/F, has a weak dependence on temperature and is essentially independent of the gas pressure.
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CitationVassell, W., Logothetis, E., and Hetrick, R., "Extended Range Air-to-Fuel Ratio Sensor," SAE Technical Paper 841250, 1984, https://doi.org/10.4271/841250.
- Rivard J. G., “Closed Loop Electronic Fuel Injection Control of IC Engines”, SAE Paper No. 730005, SAE Congress, Detroit, February 1973; Zechnell R., Baumann G. and Eisele H.. “Closed Loop Exhaust Emission Control System with Electronic Fuel Injection”, SAE Paper No. 730566, SAE Congress, Detroit May 1973.
- Fleming W. J., Howarth D. S. and Eddy D. S, “Sensor for On-Vehicle Detection of Engine Exhaust Gas Composition”, SAE Paper No. 730575, SAE Contress, Detroit, May 1973.
- Dueker H., Friese K. H. and Haecker V. D., “Ceramic Aspects of the Bosch Lambda-Sensor”, SAE Paper No. 750223, SAE Congress, Detroit, February 1975.
- Logothetis E. M., “ZrO2 Oxygen Sensors in Automotive Applications”, Proceedings First Intern. Conf. on Zirconia, Advances in Ceramics 3, p. 388, Eds. Heuer A. H. and Hobbs L. W., Amer. Ceram. Soc., 1981.
- Hetrick R. E., Fate W. A. and Vassell W. C., “Oxygen Sensing by Electrochemical Pumping, SAE Paper No.810433, SAE Congress, Detroit, February 1981; Hetrick R. E., Fate W. A. and Vassell W. C., “Oxygen Sensing by Electrochemical Pumping”, Appl. Phys. Letters 38, 390 (1981).
- Fleming W. J., “Engine Sensors: State of the Art”, SAE Paper No. 820904, Convergence ′82, Intern. Congress on Transportation Electron. Proceedings P-111, p. 97, 1982.
- Spacil H. S., Elliott J. F., Schroeder D. L. and White F. W., U. S. Patent No. 3,514,377, May 26, 1970; Beckmans N. M. and Heyne L., “An Instrument for Monitoring Low Oxygen Pressures”, Philips Technical Review 31, 112 (1970).
- Teplin L. B. and Bode J. D., U. S. Patent No. 4,169,440, October 2, 1970; Kimura S., Takao H., Ishitani S., Skezawa K. and Aoki H., U. S. Pant No. 4,224, 113.
- Logothetis E. M., Vassell W. C. and Hetrick R. E., to be published.
- Young C. T., “Experimental Analysis of ZrO2 Oxygen Sensor Transient Switching Behavior”, SAE Paper No. 810380, Automotive Engineering Congress, Detroit, February 1981.
- In the rich A/F operation, it is assumed that the reaction of CO and H2 with the O2 pumped in the cavity V is faster than the gas diffusion processes.