The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2018
Filed:
Mar. 28, 2013
Ngk Spark Plug Co., Ltd., Nagoyai, Aichi, JP;
Yu Akiyama, Dusseldorf, DE;
Yasuhiro Ishiguro, Novi, MI (US);
Tomohisa Terui, Ichinomiya, JP;
Kazuhisa Fujibayashi, Nagoya, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A gas sensor control apparatus () includes first current detection means for detecting a first pump current flowing between second electrodes () in a state in which an object gas has become a prescribed gas supply state, the temperature of a sensor section () has become a first target temperature, and the voltage between first electrodes () has become a first target voltage; second current detection means for detecting a second pump current flowing between the second electrodes in a state in which the object gas has become the prescribed gas supply state, the temperature of the sensor section has become a second target temperature, and the voltage between the first electrodes has become a second target voltage; and HO gas concentration detection means for detecting the HO gas concentration of the object gas on the basis of the first and second pump currents.