Patent ID: 6949902

Claim:
A controller of a rotating electric machine for a vehicle comprising: the rotating electric machine constructed by a winding type synchronous machine of multiple phases functioning as an electric motor and an electric generator; line electric current detecting means for detecting a line electric current of each phase of said rotating electric machine; magnetic field electric current detecting means for detecting a magnetic field electric current of said rotating electric machine; torque and electric power command arithmetic means for commanding a torque value when said rotating electric machine functions as the electric motor, and commanding an electric power generating amount when said rotating electric machine functions as the electric generator; line electric current command arithmetic means for commanding the line electric current of each phase of said rotating electric machine by the command of said torque and electric power command arithmetic means while feedback-controlling this line electric current by the detecting value of said line electric current detecting means; magnetic field electric current command arithmetic means for commanding the magnetic field electric current of said rotating electric machine by the command of said torque and electric power command arithmetic means while feedback-controlling this magnetic field electric current by the detecting value of said magnetic field electric current detecting means; an electric power converter functioning as a rectifier when said rotating electric machine functions as the electric generator, and also functioning as an inverter when said rotating electric machine functions as the electric motor; and magnetic field electric current command restraining means for restraining the line electric current of said each phase by controlling the output of said magnetic field electric current command arithmetic means when said rotating electric machine functions as the electric generator.