Patent ID: 6049196
Filing Date: 2000-04-11
Classification: H02K,H02P

Abstract:
A generator system for an internal combustion engine comprising:an induction machine which includes a rotor and a stator each having a polyphase winding, the rotor being rotated by transmitting a rotating motion of an internal combustion engine which is operated at variable speeds;rotating magnetic field generating means for electrically generating a rotating magnetic field in the rotor; andcontrol means for controlling a speed of the rotating magnetic field in the rotor,wherein the control means sets a target value of a relative speed of the rotating magnetic field with respect to the stator, and controls a speed of the rotating magnetic field on the basis of the target value and a rotation speed of the rotor, andwherein the control means sets the target value so that a power generated by the induction machine is within a predetermined range, and controls a speed of the rotating magnetic field in accordance with a rotation speed of the rotor.