Feedback air-fuel ratio control system for internal...

Details Feedback air-fuel ratio control system for internal... Feedback air-fuel ratio control system for internal...

G - Physics

05

D

341/38.13

G05D 7/06 (2006.01) F02D 41/14 (2006.01) G05D 11/13 (2006.01)

Patent

CA 1071315

Abstract of the Disclosure In a feedback control system for maintaining the air fuel ratio of a combustible mixture fed to an internal combustion engine at a preset ratio based on a feedback signal representing the concentration of a certain component of the exhaust gas, a control signal producing circuit is provided with a sub-system for holding the control signal constantly at a preset level for a predetermined amount of time immediately after the star-t of the fuel feed to the engine in order to prevent an unintentional lowering of the air- fuel ratio due to a delay in the development of the feedback signal from the start of the fuel feed. - 1 -

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