Alternator control system
First Claim
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1. An alternator control system for controlling an alternator to regulate a field current passing through a field coil of the alternator so as to regulate a terminal voltage of a battery comprising:
- terminal voltage detecting means for detecting a terminal voltage of the battery; and
control means for (1) establishing a target voltage of the battery, (2) estimating a target field current to the field coil based on both said terminal voltage and said target voltage in a feedback control, (3) performing a correction of said field current to compensate a delay in current generation of the alternator by linear advance correction, and (4) applying a corrected field current to the field coil.
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Abstract
An alternator control system controls a field current passing an alternator so as to regulate a terminal voltage of a vehicle battery to a target voltage, based on a deviation of the terminal voltage from the target voltage, by feedback control. The field current is corrected based on a delay in current generation of the alternator.
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Citations
17 Claims
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1. An alternator control system for controlling an alternator to regulate a field current passing through a field coil of the alternator so as to regulate a terminal voltage of a battery comprising:
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terminal voltage detecting means for detecting a terminal voltage of the battery; and control means for (1) establishing a target voltage of the battery, (2) estimating a target field current to the field coil based on both said terminal voltage and said target voltage in a feedback control, (3) performing a correction of said field current to compensate a delay in current generation of the alternator by linear advance correction, and (4) applying a corrected field current to the field coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An alternator control system for controlling an alternator to regulate a field current passing through a field coil of the alternator so as to regulate a terminal voltage of a battery connected to the alternator comprising:
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terminal voltage detecting means for detecting a terminal voltage of the battery; speed detecting means for detecting a rotational speed of the alternator; and control means for establishing a target voltage of the battery, calculating a target generated current of the alternator based on a deviation of said terminal voltage from said target voltage, calculating said field current based on a rotational speed of said alternator detected by said speed detecting means and said target generated current, and applying said field current to the field coil. - View Dependent Claims (15, 16, 17)
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Specification