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:
Oct. 09, 2018
Filed:
Sep. 14, 2015
Honda Motor Co., Ltd., Tokyo, JP;
Nobuyuki Fujioka, Wako, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A control apparatus for an internal combustion engine includes an exhaust gas concentration parameter sensor, a cylinder gas amount parameter acquisition device, an air-fuel ratio controller, an operation status determination device, and a determination value setting device. The air-fuel ratio controller is to perform an air-fuel ratio fluctuation control to control an air-fuel ratio in the internal combustion engine to fluctuate in a predetermined state. The operation status determination device is to determine an operation status of the internal combustion engine or an auxiliary device of the internal combustion engine based on an exhaust gas concentration parameter detected by the exhaust gas concentration parameter sensor in a case where an amount of a cylinder gas represented by a cylinder gas amount parameter acquired by the cylinder gas amount parameter acquisition device is equal to or larger than a predetermined determination value while the air-fuel ratio fluctuation control is being performed.