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. 03, 2004
Filed:
Jul. 25, 2002
Tadayuki Saga, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a fuel injection control apparatus for an internal combustion engine, which includes an O sensor and a feedback controller that performs a feedback control of the injection quantity of fuel to the internal combustion engine. The feedback controller performs the feedback control such that the feedback gain set at the time of starting the feedback and which gives operation constant for performing feedback until the air/fuel ratio becomes optimum, is set larger than the feedback gain set for the normal operation period and which gives operation constant for performing feedback in a stable state, and the feedback gain is changed between the control start time and the normal operation period, thereby reducing the time required to attain a stable feedback state and therefore quick transition to the stable state upon starting the control and thus enabling effective reduction of harmful components in exhaust gas.