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We were making an automatic trans-axle for applications such as Bugs or ground up custom jobs like the Ariel Atom. There are a few kit makers that offer skeleton cars that you add the parts you want to them. Electric trans-axles would fit right in there.
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That's very interesting. I like the Riley XR-3 and the Blackjack Zero. Would you have been using Subaru or Porsche/VW axle shafts?
Since the MGR rotor slides onto a splined shaft, could you stack rotors and stators together on a longer shaft in a custom case?
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Another set of tests were done for the "continuous" operation. Note for a car, "continuous" operation is MUCH shorter than an industrial motor would require. The Prius was tested at 50kW and the 14 temperature sensors were monitored. An upper limit of 150C was used for the tests. At 5000 RPM using 50C coolant, the motor was run for about 4min 30sec before one of the stator's temperature sensors exceeded 150C. Meanwhile, the coolant exit temperature increased to 75C. So, 50kW = 67hp. At 5000 rpm, the torque is 70ft-lb, or 95 Nm. For the Prius locked rotor test, this requires about 100A.
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4min 30sec doesn't seem very long for sustained high speed. I'm as much interested in creeping uphill at walking speed. Would high torque, low rpm operation result in massive heat gain in the controller?