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Closed-Loop Electronic Fuel and Air Control of Internal Combustion Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1975 by SAE International in United States
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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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CitationCamp, 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.
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