Internal-combustion engines – Charge forming device – Having fluidic logic control means
Patent
1984-02-24
1985-12-03
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Having fluidic logic control means
123480, 123486, 36443106, F02D 3500, F02M 5100, F02B 304
Patent
active
045560331
ABSTRACT:
A method and apparatus for performing air/fuel ratio feedback control for an internal combustion engine by comparing the results of the two comparisons; (a) comparing a determined (i.e., decision) value with a measured value detected by an oxygen sensor, and (b) comparing the determined value with a reference value, so as to determine if either is relatively large or small. Further included is an arrangement for determining whether the determined value coincides with the measured value as well as whether it coincides with the reference value, and then increasing or decreasing the determined value in accordance with the result of the determination (comparison), thereby correcting an abnormal condition of the determined (i.e., decision) value whenever the determined value is displaced from a normal condition due to injected random noise.
REFERENCES:
patent: 4408584 (1983-10-01), Yabuhara et al.
patent: 4449508 (1984-05-01), Glockler et al.
patent: 4458319 (1984-07-01), Chujo et al.
patent: 4459669 (1984-07-01), Chujo et al.
patent: 4462374 (1984-07-01), Kobayashi et al.
patent: 4463594 (1984-08-01), Raff et al.
patent: 4475512 (1984-10-01), Suzuki et al.
patent: 4479464 (1984-10-01), Konto et al.
Ito Toshimitsu
Kobayashi Nobuyuki
Nelli Raymond A.
Toyota Jidosha & Kabushiki Kaisha
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