Curving Performance of a Rail Vehicle with Independently Rotating Wheels by Torque Difference Control

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  • 独立回転車輪のトルク差制御による鉄道車両の曲線通過
  • ドクリツ カイテン シャリン ノ トルクサ セイギョ ニ ヨル テツドウ シャリョウ ノ キョクセン ツウカ

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Abstract

Trucks with independently rotating wheels (IRW) are expected for the use in gauge changeable trains and light rail vehicles. The truck with IRW lacks for self-guidance ability, and then it needs some additional mechanism for running along the track. One of them is active steering mechanism using traction torque difference between two driving wheels on a non-rotational axle. This paper deals with a simulation study that examines a potential of the curving performance of a vehicle with IRW by means of torque difference control between left and right IRWs. The proposed control law, which is composed of a guidance control for tangent track and a steering control for curved one, has a potential to reduce the lateral force of IRW over the wide range of curve radius, especially in sharp curves. In the steering control, the front and rear axles in a truck are steered in the same direction.

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