Patent ID: 9455657
Filing Date: 2016-09-27
CPC Classification: F02N,H02J,H02P

Claim Text:
1. An alternator control apparatus; comprising: a first controller that controls an alternator; and a second controller that periodically transmits an instruction signal to the first controller, the instruction signal being related to electric power generation of the alternator, wherein the instruction signal selectively includes a power generation instruction signal that causes a power generated state of the alternator, and a non-power generation instruction signal that causes a non-power generated state or a power generation suppressed state of the alternator, the first controller, if a detection value of a power supply voltage is less than a predetermined threshold and the first controller receives the power generation instruction signal from the second controller, controls a power generation amount of the alternator such that the power generation amount is greater than a predetermined reference, and, if the detection value of the power supply voltage is less than the predetermined threshold and the first controller receives the non-power generation instruction signal from the second controller, forms or maintains the non-power generated state or the power generation suppressed state of the alternator according to the non-power generation instruction signal, the second controller periodically transmits the non-power generation instruction signal to the first controller until the detection value of the power supply voltage becomes greater than or equal to the predetermined threshold after a completion of an engine start.