Electricity: single generator systems – With signals – indicators – recorders – testing – etc.
Reexamination Certificate
2009-02-27
2011-11-08
Leung, Quyen (Department: 2834)
Electricity: single generator systems
With signals, indicators, recorders, testing, etc.
C322S024000, C322S025000, C322S028000, C290S04000F, C307S010100
Reexamination Certificate
active
08054051
ABSTRACT:
The present invention provides, as one aspect, an apparatus for detecting an abnormality of a generator for vehicles. The generator includes a multi-phase armature winding that has phase windings and a rectifier that rectifies multi-phase output of the armature winding. The apparatus includes a first period detection unit that detects a first period of an output voltage of the generator, a second period detection unit that detects a second period of an voltage of one of the phase windings, and an abnormality determination unit that determines presence or absence of an abnormality of the generator by comparing the first period with the second period.
REFERENCES:
patent: 4665354 (1987-05-01), Sada et al.
patent: 6750634 (2004-06-01), Taniguchi et al.
patent: 6867569 (2005-03-01), Taniguchi et al.
patent: 7235952 (2007-06-01), Maehara
patent: 7285937 (2007-10-01), Asada
patent: 7285938 (2007-10-01), Aoyama
patent: 7292007 (2007-11-01), Aoyama
patent: 2003/0042874 (2003-03-01), Anderson et al.
patent: 2007/0114976 (2007-05-01), Inokuchi et al.
patent: 2009/0218992 (2009-09-01), Nagata et al.
patent: A-2003-061260 (2003-02-01), None
Maruyama Toshinori
Nagata Tadakazu
Denso Corporation
Kim John K
Leung Quyen
Oliff & Berridg,e PLC
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