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:
Feb. 24, 2015
Filed:
Apr. 02, 2012
Takeshi Aoki, Wako, JP;
Atsuhiro Miyauchi, Wako, JP;
Michinori Tani, Wako, JP;
Seiji Watanabe, Wako, JP;
Tooru Sekiguchi, Wako, JP;
Hiroyuki Ando, Wako, JP;
Takeshi Aoki, Wako, JP;
Atsuhiro Miyauchi, Wako, JP;
Michinori Tani, Wako, JP;
Seiji Watanabe, Wako, JP;
Tooru Sekiguchi, Wako, JP;
Hiroyuki Ando, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An abnormality determining apparatus includes an air-fuel ratio controller, an output change period parameter calculator, an output change amount extremum calculator, and an abnormality determining device. The abnormality determining device is configured to determine an abnormality of an air-fuel ratio sensor based on a relationship between an output change period parameter and an output change amount extremum.