Traction Drive Technology for High Speed Traction Motors in Electric Vehicles

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  • ITAGAKI Hirofumi
    Powertrain Technology Development Department, Automotive Technology Development Center, NSK Ltd.

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  • 電気自動車駆動用モータの高速化に資するトラクションドライブ技術
  • デンキ ジドウシャ クドウヨウ モータ ノ コウソクカ ニ シスル トラクションドライブ ギジュツ

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<p>By increasing speed, traction motors can be made lighter and smaller, thereby reducing power consumption in electric vehicles. Thus, speed reducers that withstand high-speed rotation of the traction motor are required. Traction drives, a type of power transmission mechanism, are more suitable than gears for silent rotation at high speeds and are expected to be employed in high-speed traction motors. This paper describes operation principles and related technologies in the design of compact, light, and highly efficient traction drives.</p>

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