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:
Mar. 15, 2005
Filed:
May. 20, 2002
Applicants:
Makoto Taniguchi, Kariya, JP;
Katsuya Muto, Okazaki, JP;
Inventors:
Makoto Taniguchi, Kariya, JP;
Katsuya Muto, Okazaki, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H007/06 ; H02P011/00 ; H02P009/00 ;
U.S. Cl.
CPC ...
Abstract
An abnormality detection apparatus of a vehicle AC generator that includes a rectifier for providing DC voltage is disclosed. The abnormality detection apparatus includes an abnormality judging unit and an alarm lamp. The abnormality judging unit judges abnormality of the vehicle AC generator if the number of ripples that is included in the output voltage of a rectifier is not equal to or more than a predetermined number for a predetermined period. The alarm lamp lights when the abnormality judging unit judges abnormality.