Control device for vehicle generator

Details Control device for vehicle generator Control device for vehicle generator

1998-03-20

2000-03-14

Dougherty, Thomas M.

Electricity: single generator systems

Automatic control of generator or driving means

Speed or frequency of generator

H02H 706

Patent

active

060377534

ABSTRACT:
A control device for a vehicle alternator having a field coil, and an auxiliary permanent magnet. The control device includes voltage regulator, a generation-condition detecting circuit having a frequency sensor and a comparator for comparing a frequency of the output voltage with a reference value and a power source circuit for supplying electric power to the generation-condition detecting circuit when the output voltage becomes equal to or higher than a voltage that is generated without the field current. The generation-condition detecting circuit allows the voltage regulator to supply the field coil with controlled electric current only when the frequency of the output voltage is higher than the reference value.

REFERENCES:
patent: 4409539 (1983-10-01), Nordbrock et al.
patent: 4634954 (1987-01-01), Kato et al.
patent: 5061889 (1991-10-01), Iwatani et al.
patent: 5497071 (1996-03-01), Iwatani et al.
patent: 5754031 (1998-05-01), Kanazawa et al.

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