Patent ID: 6696773
Filing Date: 2004-02-24
Classification: H02P

Abstract:
A generator control system of a vehicle AC generator that includes a rotor having a plurality of magnetic poles and a field coil, a first polyphase armature winding including a first phase-winding, a second polyphase armature winding including a second phase-winding that is different in phase and electrically insulated from said first phase-winding, a first rectifier connected to said first polyphase armature winding and a second rectifier connected to said second polyphase armature winding, said generator control system comprising:switching means connected in series with said field coil; a voltage regulator for controlling said switching means to thereby control output voltage of said vehicle AC generator; comparing means for providing a pulse signal having variable frequencies by comparing voltage of said first phase-winding with voltage of said second phase-winding; and counter means for starting operation of said voltage regulator when said variable frequencies becomes equal to or larger than a predetermined value.