Internal-combustion engines – Charge forming device – Having fluidic logic control means
Patent
1985-04-30
1987-04-21
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Having fluidic logic control means
123489, 204425, F02D 4114
Patent
active
046587900
ABSTRACT:
In order for increased precision control of air/fuel ratio, a pump electric current indicative voltage and a pump electric voltage are selectively used as an air/fuel ratio indicative signal in such a manner that the pump electric voltage is used at the stoichiometry, while the pump electric current indicative voltage is used as the air/fuel ratio indicative signal at an air/fuel ratio other than the stoichiometry. According to another aspect of the invention, the pump electric current indicative voltage is offset in response to step change in the pump electric voltage to generate an air/fuel ratio indicative signal which changes rapidly at the stoichiometry.
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Argenbright Tony M.
Nissan Motor Co,. Ltd.
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