An Oxford motor for automotive application weighed just 13kg but delivers a peak torque of 130Nm (10Nm/kg) and peak power of about 50kW. Simulations show that the same motor is capable of achieving a peak torque of over 200Nm and a peak power of over 150kW.
The smaller the ratio of RI / RO, where RI is the inner radius of the stator's coil supporting ring, and RO is the outer radius of the stator's coil supporting ring, the closser the wires are to being parallel. In other words, less bunching up of the wires when wrapping around the inner diameter of the ring.
LaunchPoint Technologies, Inc. has completed optimization and initial prototyping for a high efficiency, high power density, Halbach array electric motor. With a total weight of only 1.4 pounds, this electric motor produces 7 horsepower at 8400 rpm with 95 percent efficiency. At 5 horsepower per pound, this electric motor has a higher power density than any other electric motor on the market. The brushless, axial flux permanent magnet design is.....
