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 8138728 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 20, 2012

Filed:

Mar. 30, 2009
Applicant:

Tadashi Uematsu, Kariya, JP;

Inventor:

Tadashi Uematsu, Kariya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides, as one aspect, an apparatus for controlling electric power generation for vehicles, which controls energization of an excitation winding of a generator driven by an internal-combustion engine controlled by a controller to control output voltage of the generator. The apparatus includes a restraining unit that restrains electric power generation of the generator in response to a given signal, and a releasing unit the releases the restraint by the restraining unit when generated voltage of the generator is equal to or less than a first predetermined value. The apparatus further includes a detecting unit that detects starting of the internal-combustion engine, a measuring unit that measures elapsed time from the detection of the starting by the detecting unit, and a prohibiting unit that prohibits the release of the restraint by the releasing unit until a predetermined time is measured by the measuring unit.


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Uematsu, Tadashi. (2012). Method and apparatus for controlling electric power generation for vehicles (U.S. Patent No. 8138728). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8138728

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