Abstract
This paper proposes the new steering bogie for very tight curved track. The bogie consists of independently rotating wheel controlled by power steering yaw-dampers. Independently rotating wheel with EEF bogie naturally has self steering ability making use of gravity restoring force aroused by nonlinear tread gradient, but has vibration nature in yaw mode of wheel. The proposed power steering yaw-damper enable the wheel vibration to decrease while controlling the steering motion on transition curve. The authors combined the self steering ability of the bogie and power steering yaw-damper to get the compatibility between excellent steering behavior and enough high speed running stability. Experimental results with scaled model vehicle show the effectiveness of active control and bogie mechanism.
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