Air-fuel ratio control system for engine

Details Air-fuel ratio control system for engine Air-fuel ratio control system for engine

1995-06-30

1997-11-11

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123681, 123687, F02D 4114

Patent

active

056852835

ABSTRACT:
An air-fuel ratio control system for an engine for controlling an amount of a fuel mixture to be delivered into a combustion chamber so that an air-fuel ratio of the fuel mixture attains a target air-fuel ratio performs selecting one of a plurality of predetermined target air-fuel ratios according to engine operating conditions, controlling an amount of a fuel mixture so as to attain a selected target air-fuel ratio, and changing a speed at which the target air-fuel ratio is changed from one to another ratio higher with an increase in deviation of the other target air-fuel ratio from the one target air-fuel ratio.

REFERENCES:
patent: 4561403 (1985-12-01), Oyama et al.
patent: 4594984 (1986-06-01), Raff et al.

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