| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power generation controller of a vehicular power generator capable of satisfactorily and uniformly maintaining power generation controllability even though operating points are different at each of the power generator. <P>SOLUTION: A voltage detection device 10 samples a voltage of a battery 3 based on a reference clock signal. A duty range setting device 12 sets and outputs a range for the on/off-ratio of a field switching element 7 which adapts to a current operating point from the rotational speed outputted from a rotational speed computing device 11 and power generation characteristics of a wound-field type synchronous rotating machine 1. A control duty computation device 13 computes the on/off-ratio of the field switching element from a deviation between a power generation target voltage and voltage information as the result of sampling, referring to the set range for the on/off-ratio, and transmits the on/off-ratio to a field PWM drive device 14. The field PWM drive device 14 controls the on/off-switching operation of the field switching element 7 with an interval based on the reference clock signal. Thus, a current flowing in a field winding 22 is regulated. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
