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:
Aug. 14, 2018
Filed:
Sep. 17, 2015
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Yoshihiro Nakano, Komaki, JP;
Shiro Kakimoto, Kasugai, JP;
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Abstract
In a multi-gas sensor control apparatus, the concentrations of ammonia, NO, and NO contained in a gas under measurement are computed as a result of execution of gas concentration computation processing by a CPUof a microcomputer. In the gas concentration computation processing, depending on whether or not a correction permission condition is satisfied (S), the CPUswitches its operation between an operation of storing the latest corrected ammonia concentration as a value of 'NHconcentration (this time)' (S) and an operation of storing a value of 'NHconcentration (reference)' as a value of “NHconcentration (this time)” (S). The multi-gas sensor control apparatuscan suppress a decrease in the accuracy of detection of the ammonia concentration performed through use of a multi-gas sensor