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:
Apr. 16, 2019
Filed:
May. 31, 2016
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Yuzo Higuchi, Komaki, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A sensor control apparatus controls a gas sensor including an electromotive force cell (a detection cell) and an oxygen pump cell. The sensor control apparatus includes an AD conversion section (); a PID computation section (); a first signal generation section () which generates a DAC control signal S(a pump current control signal) based on the results of PID performed by the PID computation section (); a current DA conversion section (); and a first signal generation section (), a second signal generation section (), and a signal output section () configured to selectively set a combination of the results of the computations performed by the PID computation section () and to generate a gas detection signal Sbased on the set combination of the computation results.