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tradotto
on Nov 16, 2012
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An electric motor that does not need expensive rar...
Squirrel Cage Induction Motors have been around for years and have been used in Industry forever.
No brushes, no magnets...
http://en.wikipedia.org/wiki/Squirrel-cage_rotor
damianpeckett
on Nov 16, 2012
[–]
And jack all low end torque, something very important to car applications.
http://en.wikipedia.org/wiki/File:Variation-couple-uf.svg
frankus
on Nov 17, 2012
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With a variable-frequency drive (or better yet, flux vector control) you can achieve full torque at zero speed with a squirrel-cage motor.
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No brushes, no magnets...
http://en.wikipedia.org/wiki/Squirrel-cage_rotor