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.:

US 7021281 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 04, 2006

Filed:

Jul. 14, 2004
Applicant:

Victoriano Ruiz, Brighton, MI (US);

Inventor:

Victoriano Ruiz, Brighton, MI (US);

Assignee:

General Motors Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An internal combustion engine idle speed control system includes a first valve control mechanism that adjusts a first operating parameter of a first cylinder valve. A control module determines an idle speed error and generates a first control signal to the first valve control mechanism to adjust the first operating parameter. The first control signal is based on the idle speed error.


Find Patent Forward Citations

Ruiz, Victoriano. (2006). Engine idle control system (U.S. Patent No. 7021281). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7021281

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

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