Air fuel mixture control system and method

Details Air fuel mixture control system and method Air fuel mixture control system and method

1980-08-27

1982-09-21

Lall, P. S.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, F02B 308, F02M 712

Patent

active

043501303

ABSTRACT:
This specification discloses an apparatus and method for controlling the air fuel ratio in an internal combustion engine in response to a signal from an exhaust gas oxygen sensor. A signal proportional to the average air fuel ratio indicated by exhaust gases is integrated to produce a control signal which governs the air fuel ratio. A feedback loop around the integrator provides for an advantageously fast time response of the controller with no over-shoot or instability.

REFERENCES:
patent: Re29741 (1978-08-01), Norimatsu et al.
patent: 3903853 (1975-09-01), Kizler et al.
patent: 3939654 (1976-02-01), Creps
patent: 4073269 (1978-02-01), Herth et al.
patent: 4075982 (1978-02-01), Asano et al.
patent: 4099491 (1978-07-01), Reddy
patent: 4123999 (1978-11-01), Asano

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