Control system for internal combustion engine

Details Control system for internal combustion engine Control system for internal combustion engine

1981-09-11

1984-05-22

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123179G, 123479, 123589, F02M 712

Patent

active

044495021

ABSTRACT:
A control system for controlling the opening degree of a solenoid valve provided in an air or fuel supplying system for engine to thereby control the air/fuel ratio of the gas mixture being supplied to the engine. This control system includes a device for accumulating the number of revolutions of the engine from the time the engine starts. When the accumulated value reaches a predetermined value, it is decided that the warming-up of engine is completed. Then, the output of the O.sub.2 sensor for detecting the oxygen O.sub.2 concentration in the exhaust gas is fed back to thereby perform the closed loop control for the air/fuel ratio. Before the accumulated value reaches the predetermined value, the closed loop control is performed without use of the output of the O.sub.2 sensor.

REFERENCES:
patent: 3782347 (1974-01-01), Schmidt et al.
patent: 4040408 (1977-08-01), Kraus et al.
patent: 4140086 (1979-02-01), Schnurle et al.
patent: 4208990 (1980-06-01), Asano
patent: 4216653 (1980-08-01), Nakase et al.
patent: 4252098 (1981-02-01), Tomczak et al.
patent: 4290107 (1981-09-01), Suda et al.

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