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Closed Loop Carburetor Emission Control System
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English
Abstract
Electronic control logic and system components are described that are used with a venturi carburetor to accomplish the fuel metering required in a closed loop emission control system. Special open loop functions are used because of the nature of the venturi carburetor and the warm-up characteristics of the three-way catalytic converter and exhaust gas sensors. Strip chart recordings illustrate the dynamic characteristics of the electronic control logic, and emission test results with a low mileage three-way converter are set forth.
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Citation
Spilski, R. and Creps, W., "Closed Loop Carburetor Emission Control System," SAE Technical Paper 750371, 1975, https://doi.org/10.4271/750371.Also In
References
- Cassidy, J. F. Jr. “Electronic Closed Loop Controls for the Automobile.” 740014 SAE International Automotive Engineering Congress Detroit January 1974
- Rivard J. G. “Closed-Loop Electronic Fuel Injection Control of the Internal Combustion Engine.” 730005 SAE International Automotive Engineering Congress Detroit January 1973
- Rachel T. L. Gunda R. “Electronic Fuel Injection Utilizing Feedback Techniques.” Session 36, IEEE International Convention and Exposition New York March 1974
- Zechnall R. Baumann G. Eisele H. “Closed-Loop Exhaust Emission Control System with Electronic Fuel Injection.” 730566 SAE National Automotive Engineering Meeting Detroit May 1973
- Fleming W. J. Howarth D. S. Eddy D. S. “Sensor for On-Vehicle Detection of Engine Exhaust Gas Composition.” 730575 SAE National Automotive Engineering Meeting Detroit May 1973
- Eddy D. S. “Physical Principles of the Zirconia Exhaust Gas Sensor.” IEEE Vehicular Technology Conference Cleveland December 1973
- Gyorki J. “Fundamentals of Electronic Fuel Injection.” 740020 SAE International Automotive Engineering Congress Detroit January 1974