Patent ID: 6975080
Filing Date: 2005-12-13
Classification: H02J,H02P,Y02T

Abstract:
1. A rotating electrical machine for a vehicle comprising: an armature having an armature core and an armature winding wound around said armature core for generating an output voltage to charge a battery; a rotor having a rotor core with a field winding wound therearound, and permanent magnets for supplying magnetic flux to said armature core; and a voltage control section that adjust said output voltage of said armature by controlling said field current based on the value of an output voltage of said armature winding and the value and the direction of flow of said field current flowing through said field winding; wherein when said rotor rotates, said voltage control section inhibits an output current from being output from said armature winding to said battery by controlling said output voltage of said armature winding to one of a plurality of control voltages that are set equal to or lower than an overvoltage of said battery.