Electricity: single generator systems – Combined control of generating means and load circuit – Including load circuit-making and breaking
Patent
1986-06-10
1987-06-02
Hickey, R. J.
Electricity: single generator systems
Combined control of generating means and load circuit
Including load circuit-making and breaking
322 28, H02J 714
Patent
active
046707042
ABSTRACT:
A voltage regulator maintains an output voltage of an alternator of a vehicle to a voltage in the vicinity of a preset voltage. The voltage regulator has a microcomputer for setting the OFF duty ratio, a switching circuit for switching on or off an electric current flowing through a rotor coil of the alternator and a load sensor for detecting the operation of the intermittent load. The microcomputer sets the OFF duty ratio to a value directly proportional to the difference between the output voltage and the preset voltage before the operation of the intermittent load is started. And the microcomputer gradually decreases the OFF duty ratio set by said duty ratio setting means at the initial operation time of the intermittent load, and memorizes the OFF duty ratio when the output voltage reaches its upper limit value exceeding the preset voltage. The microcomputer changes the OFF duty ratio to an average value of the OFF duty ratio set by the duty ratio setting means and the OFF duty ratio memorized by the memory means when the reoperation of the intermittent load is detected within a prescribed time after the initial operation of the intermittent load.
REFERENCES:
patent: 4263543 (1981-04-01), Watrous et al.
patent: 4286205 (1981-08-01), Watrous
patent: 4459489 (1984-07-01), Kirk et al.
Kato Hidetoshi
Maehara Fuyuky
Hickey R. J.
Nippondenso Co. Ltd.
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