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US 4,905,654 AGranted
Device for controlling an internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsToshiyasu Katsuno, Keiji Aoki, Yoshiki Chujo
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Abstract
A control device for an internal combustion engine having an oxygen sensor, and calculation means for calculating a weight of oxygen fed to the internal combustion engine. The oxygen sensor outputs a signal corresponding only to a density of oxygen contained in intake gas fed to the engine. The oxygen sensor has a diffusion layer having pores through which oxygen molecules pass, the pores having a diameter less than or equal to the mean free path of the oxygen molecules contained in the intake gas.
Claims12
A device for controlling an internal combustion engine, said control device comprising:
- an oxygen sensor provided in said internal combustion engine and outputting a signal corresponding only to a density of oxygen contained in intake gas fed to said internal combustion engine, and
- means for calculating a weight of oxygen fed to said internal combustion engine, based on said signal from said oxygen sensor, to obtain a factor for controlling said internal combustion engine in accordance with said weight of oxygen.
Dependencies are inferred from the claim text.