System of abnormality detection for oxygen concentration sensor

Patent · Tue Feb 16 04:00:00 EST 1988

OSTI ID:5056576

Mieno, T; Nakajima, T; Okada, Y; Oono, N

A system for abnormality detection in an oxygen concentration detector is described comprising: an oxygen concentration sensor which includes two pairs of electrodes disposed in mutual opposition with each of the pairs sandwiching an oxygen ion-conductive solid electrolytic member; gas diffusion control means for providing a gas which is under measurement to the vicinity of one electrode of each of the two pairs of electrodes; control means for applying a pump voltage, means for detecting an abnormality of an electrical connection system of the first pair of electrodes based upon a voltage developed between the first pair of electrodes and upon a current which flows between the second pair of electrodes.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4724814
• OSTI ID: 5056576
• Country of Publication: United States
• Language: English

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