×

GEARLESS WHEEL MOTOR DRIVE SYSTEM

  • US 20090295316A1
  • Filed: 08/14/2009
  • Published: 12/03/2009
  • Est. Priority Date: 07/29/2004
  • Status: Abandoned Application
First Claim
Patent Images

1. A method of operating a permanent magnet axial flux motor, comprising:

  • receiving a requested torque and motor speed;

    determining commanded d- and q-axis currents corresponding to the requested torque and motor speed;

    combining at least one of the commanded d-axis current or the commanded q-axis current with a field weakening correction to provide a corrected output;

    converting the corrected output to a stationary current frame of reference output; and

    operating an inverter based on the stationary frame of reference output to provide current to coils of the motor, thereby causing the motor to operate substantially at the requested torque and motor speed.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×