Air/fuel ratio controller for engine

Details Air/fuel ratio controller for engine Air/fuel ratio controller for engine

1987-11-25

1990-03-13

LaRoche, Eugene R.

Boots, shoes, and leggings

36443107, 123492, F02D 4110

Patent

active

049087657

ABSTRACT:
Disclosed herein is an air/fuel ratio controller for an engine, which is equipped with a function to make the air/fuel ratio leaner in a light-load operation zone or the like of a lean burn engine. The controller is intended to improve the starting performance and acceleration feeling of the engine significantly. Upon generation of an acceleration command by a driver during lean burn of the engine at a lean air/fuel ratio, an air/fuel ratio enriching device is operated to set the air/fuel ratio of an air-fuel mixture, which is to be fed to the engine, at a level richer than the lean air/fuel ratio while an actually accelerated state continues in the engine from the time point of generation of the acceleration command.

REFERENCES:
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patent: 4665878 (1987-05-01), Takeuchi et al.
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JP-A-61 087 932 (Takeuchi et al.) (Mazda) (19-05-1987).
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