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:
Mar. 20, 2018
Filed:
Sep. 30, 2015
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Yuzo Higuchi, Komaki, JP;
Tomonori Uemura, Komaki, JP;
NGK SPARK PLUG CO., LTD., Nagoya-shi, Aichi, JP;
Abstract
A gas sensor system () includes a gas sensor () having a cell () electrically communicating with a first terminal Tand a second terminal T, and a cell () electrically communicating with Tand a third terminal T; and a sensor control section () including detection circuits () for detecting the terminal potentials V, V. The sensor control section includes circuit () for bringing Tto an examination potential Vex; constant current circuits () for supplying examination currents Ipoc, Icp; terminal potential detection means Sfor detecting V, Vbefore the gas sensor detects the gas concentration in an activated state, and in a state in which Tis brought to examination potential Vex and Ipoc, Icp are supplied to the cells (); and wire breakage determination means S, Sfor determining a wire breakage anomaly and its location based on the V, V