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BROAD TURNDOWN RATIO TRACTION DRIVE

  • US 20110204829A1
  • Filed: 02/25/2010
  • Published: 08/25/2011
  • Est. Priority Date: 02/25/2010
  • Status: Active Grant
First Claim
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1. A traction drive system, comprising:

  • a main shaft;

    a first electric motor having a first performance profile and a first shaft connected to the main shaft; and

    a second electric motor having a second performance profile distinct from the first performance profile and a second shaft selectably connected to the main shaft by an engagement device.

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