Control apparatus for automotive alternator having...

Electricity: single generator systems – Combined control of generating means and load circuit – Including load circuit-making and breaking

Reexamination Certificate

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C322S007000, C322S037000

Reexamination Certificate

active

11598080

ABSTRACT:
According to the present invention, there is provided a control apparatus for an automotive alternator which includes a switch, a target voltage setter, a voltage regulator, and a disconnection detector. The switch is configured to be selectively turned on and off so as to intermittently excite the alternator. The target voltage setter works to set a target voltage. The voltage regulator works to regulate an output voltage of the alternator to the target voltage through controlling on/off operation the switch. The disconnection detector works to detect disconnection between the alternator and an on-board battery to be charged by the alternator. The disconnection detector is configured to detect the disconnection, when the target voltage is changed from a lower value to a higher value, based on a time required for the voltage regulator to bring the output voltage of the alternator from the lower value to the higher value.

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patent: 4379990 (1983-04-01), Sievers et al.
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patent: 5581172 (1996-12-01), Iwatani et al.
patent: 7009366 (2006-03-01), Maehara
patent: 7235952 (2007-06-01), Maehara
patent: 7235953 (2007-06-01), Aoyama
patent: A 6-276691 (1994-09-01), None
patent: A 7-015886 (1995-01-01), None
patent: A 2004-248346 (2004-09-01), None

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