Closed loop mixture control system for internal combustion engin

Details Closed loop mixture control system for internal combustion engin Closed loop mixture control system for internal combustion engin

1979-04-10

1980-10-07

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

F02B 300, F02M 700

Patent

active

042262216

ABSTRACT:
A closed loop mixture control system for an internal combustion engine comprises an exhaust gas sensor, a source of injecting a current into the exhaust gas sensor to develop a substantial voltage across the internal impedance thereof, and a variable reference setting circuit which establishes a variable reference voltage and reduces its value as a function of time such that the reference voltage lies between the maximum and minimum peak values of the output signal from the exhaust gas sensor.

REFERENCES:
patent: 4112893 (1978-09-01), Anzai
patent: 4120269 (1978-10-01), Fujishiro
patent: 4131089 (1978-12-01), Fujishiro
patent: 4153023 (1979-05-01), Asano
patent: 4167163 (1979-09-01), Moder
patent: 4167925 (1979-09-01), Hosaka

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