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Air-Fuel Ratio Sensor Utilizing Ion Transportation in Zirconia Electrolyte
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English
Abstract
To detect an air-fuel ratio in wide range is very important to control the automotive engines with low fuel consumption and low exhaust emissions. Although the application of zirconia electrolyte for this purpose has been proposed by the authors several years ago, there remained several problems due to the contamination of gas diffusion apertures which are exposed to the exhaust gas environment.
Here the behavior of ions transported in zirconia electrolyte have been analyzed to optimize the structure and characteristics, and to guarantee the long life operation of sensor. Gas contents and their reactions in combustion process under the wide range air-fuel ratio have been analyzed, and these results were reflected to the analysis of ion transportation in zirconia electrolyte. Experimental results supported the analytical results, and they showed the possibilities of long life operation of zirconia air-fuel ratio sensor utilizing ion transportation phenomena. Results of durability tests in typical engines have also been shown in this paper.
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Sasayama, T., Yamauchi, T., Byers, R., Suzuki, S. et al., "Air-Fuel Ratio Sensor Utilizing Ion Transportation in Zirconia Electrolyte," SAE Technical Paper 910501, 1991, https://doi.org/10.4271/910501.Also In
References
- Sasayama T. “An advanced computer controlled engine system employing new combustion monitoring system” Proc.FISITA 86 Belgrade, Yugoslavia June 1986
- Sasayama T. et al. “Investigation of a new electronic control system for automotive engines” Proc. IECON 84 288 292 Tokyo, Japan Nov. 1984
- Rivard J.C. “Closed loop electronic fuel injection control of IC engines” SAE Paper, No. 730005 Detroit Feb. 1973
- Zechnell R. et al. “Closed loop exhaust emission control system with electronic fuel injection” SAE Paper, No. 730566 Detroit May 1973
- Yanagida H. Brook R.J. Kroger F.A. “Direct current-voltage characteristics of calcia stabilized zirconia with porous platinum electrodes” Electrochemical Science 593 601 May 1970