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.

Date of Patent:
Apr. 24, 2001

Filed:

Feb. 05, 1999
Applicant:
Inventors:

Akira Ishida, Osakafu, JP;

Masuo Takigawa, Naraken, JP;

Toru Kitamura, Saitama-ken, JP;

Akira Kato, Saitama-ken, JP;

Naohiro Kurokawa, Saitama-ken, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 4/500 ;
U.S. Cl.
CPC ...
F02D 4/500 ;
Abstract

A control device for controlling an air-to-fuel ratio when fuel is injected in an internal combustion engine, comprises: a state detecting unit for detecting parameters representing operating states of the internal combustion engine; a counting unit for counting the number of times of explosion in a cylinder just after the engine starts; and a unit for estimating an air-to-fuel ratio just after the engine starts from the operating state parameters and the number of times of explosion.


Find Patent Forward Citations

Ishida, Akira. (2001). Air-to-fuel ratio control device (U.S. Patent No. 6223121). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6223121

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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