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Closed-Loop Electronic Fuel and Air Control of Internal Combustion Engines
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English
Abstract
Utilizing a closed loop EFI system with an oxygen (Lambda) sensor as a feedback element, techniques are demonstrated to expand the A/F operating range up to 10% from a stoichiometric calibration.
Fuel injection timing techniques, such as “simultaneous double fire,” are presented which further enhance the transient engine response of EFI vehicles.
A closed loop air control system operating with the EFI system is discussed. This system has resulted in improved idle-speed control during both cold-and warm-engine operating conditions.
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Topic
Citation
Camp, J. and Rachel, T., "Closed-Loop Electronic Fuel and Air Control of Internal Combustion Engines," SAE Technical Paper 750369, 1975, https://doi.org/10.4271/750369.Also In
References
- Rivard J. “Electronic Fuel Injection in the USA,” International Colloquium on Automotive Electronic Technology - Convergence '74 Troy, Michigan October 1974
- Scholl H. “Electronic Fuel Injection,” Institution of Mechanical Engineers March 1972
- Rachel T. Gunda R. “Electronic Fuel Injection Utilizing Feedback Techniques IEEE Intercon Conference Record, Seminar 36 New York City March 1974
- Reddy J. N. “Report on O 2 Sensor Design Verification,” Bendix Electronic Fuel Injection Division July 1974
- Eisele H. “Electronic Fuel Injection in Europe,” International Colloquium on Automotive Electronic Technology - Convergence '74 Troy, Michigan October 1974