Document Type and Number:
Japanese Patent JPS6363735
Kind Code:
B2
Abstract:
An air-fuel ratio control system for engines comprises a control unit by which the air-fuel ratio is maintained constant to enrich the mixture gas for a first predetermined time length after the detection of an engine heavy load condition, the air-fuel ratio is controlled as predetermined on the basis of an oxygen detection signal for a second predetermined time length after the lapse of the first predetermined time length, and the air-fuel ratio is restored to the constant value thereby to enrich the mixture gas after the lapse of the second predetermined time length.
Application Number:
JP787382A
Publication Date:
December 08, 1988
Filing Date:
January 21, 1982
Export Citation:
International Classes:
F02D41/10; F02D41/14