Apparatus for controlling output of vehicular AC generator

Details Apparatus for controlling output of vehicular AC generator Apparatus for controlling output of vehicular AC generator

1994-12-23

1996-12-03

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Voltage of generator or circuit supplied

322 24, 322 99, H02J 714

Patent

active

055811728

ABSTRACT:
An apparatus for controlling an output from an AC generator for a vehicle is provided which enables wiring from an external control unit to a voltage regulator by using only one wiring line, and which is capable of adjusting an output voltage of the AC generator to a usual value in accordance with a duty ratio of a control signal supplied from the external control unit, and linearly controlling the generator output voltage to a desired value in relation to a change in the level of the control signal. The apparatus includes a control unit connected to a battery and a variety of sensors mounted on a vehicle for generating a control signal which has a duty ratio corresponding to a sensed operating condition of the vehicle; and a voltage regulator connected to the battery and the control unit for detecting an output voltage of the battery and controlling turning on and off of a field current supplied from the battery to a field coil of the AC generator in accordance with the detected battery voltage so as to adjust an output voltage of the AC generator to a level that is determined in accordance with the duty ratio of the control signal from the external control unit.

REFERENCES:
patent: 4777425 (1988-10-01), MacFarlane
patent: 5225764 (1993-07-01), Falater
patent: 5256959 (1993-10-01), Nagano et al.
patent: 5444354 (1995-08-01), Ttakahashi et al.
patent: 5467008 (1995-11-01), Uchinami
patent: 5481176 (1996-01-01), DeBiasi et al.
patent: 5483146 (1996-01-01), Schultz et al.
patent: 5491400 (1996-02-01), Iwatani et al.
patent: 5497071 (1996-03-01), Iwatani et al.

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