Electronic control system for an internal combustion engine cont

Details Electronic control system for an internal combustion engine cont Electronic control system for an internal combustion engine cont

1982-02-24

1985-01-29

Lall, Parshotam S.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

123480, F02M 700

Patent

active

044959214

ABSTRACT:
An air fuel ratio control system includes a correction system for correcting air/fuel ratio depending on measured atmospheric air pressure. The correction system has sensors for detecting engine operating conditions. A reference intake manifold pressure corresponding to the detected engine operating condition at sea level is obtained from the engine operating condition. The reference atmospheric air pressure is compared with the measure intake manifold absolute pressure to determine a difference value. Based on the difference, a correction value for controlling the air/fuel ratio is determined.

REFERENCES:
patent: 4167924 (1979-09-01), Carlson et al.
patent: 4364227 (1982-12-01), Yoshida et al.
patent: 4365603 (1982-12-01), Shikata et al.
patent: 4373187 (1983-02-01), Ishii et al.

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