| 摘要 |
<p>PURPOSE:To ensure both of stability and responding property of control when an alternator is controlled by effecting the feedback control of the voltage of a battery to an objective voltage. CONSTITUTION:An alternator 1 is connected to a battery 3 through a power supplying harness 4. The duty control of a transistor Tr1 for controlling the field current of a field coil 1b for the alternator 1 is effected by a controller 2. The controller 2 controls a duty ratio for the transistor 1 in accordance with a difference between the voltage of the battery 3 and an objective voltage while changes a proportional control gain and an integral control gain in accordance with the generating characteristics of the alternator 1 or the number of rotation and/or a generating current upon control, for examples. The control gain is set so as to be big when the number of rotation of the alternator 1 is high compared with a case wherein the same is low while the control gain is set so as to be bigger when the generating current is higher compared with a case wherein the same is lower.</p> |
