Dynamic-Range Electric Motor

The Dynamic-Range Electric Motor is a novel brushless DC motor system design to broaden the motor’s efficient operating range while consuming less power. 

The Dynamic-Range Electric Motor is a novel brushless DC motor system designed to broaden the motor's efficient operating range while consuming less power. 

Abstract:

The Dynamic-Range Electric Motor’s novel design couples two BLDC motors to a single shaft; the first motor is optimized for torque and coupled via a sprag bearing clutch. The second motor is optimized for voltage directly coupled to the shaft. The system setup separates and independently operates motor torque and speed. The outcome is a consistent torque application to the shaft; this can broaden the efficient operating range of BLDC motors over a wide range.

Advantages:

  • Creates 2-3 different torque constants within a single motor design
  • Broadens the efficient operating range
  • Creates the ability to run low motor speed at different shaft speeds

Potential Applications:

  • Electric Vehicles
  • Mobility Scooters
  • Recreational Motors
  • Robotics