Rail transit vehicle and wheel set system and control method thereof

Abstract

According to the rail transit vehicle and the wheel set system and the control method thereof, suspension bearing, electromagnetic guiding, electromagnetic traction and braking are achieved through electromagnetic induction, a traditional wheel set gear box and a traction motor mechanism can be completely omitted, the unsprung mass control difficulty can be overcome, the unsprung mass of the vehicle is greatly reduced, the wheel rail force is reduced, and the service life of the vehicle is prolonged. Track maintenance cost can be effectively reduced, and the service life of the track is prolonged.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a rail transit vehicle, its wheelset system and a control method. Background technique [0002] The wheel set system is a unique structure of rail vehicles. Rail vehicles rely on the wheel set system to take into account the three functions of running, bearing and guiding at the same time. The longitudinal running is realized through the rotation of the wheels, the lateral creep force of the wheel and rails realizes the guidance, and the vertical force of the wheels and rails To achieve load bearing, the three functions are coupled with each other, and it is difficult to decouple the wheel-rail force. The wheel-rail relationship has always been the top problem in the rail transit industry. [0003] The left and right wheels of the traditional wheel set are fixed to the axle. During the operation of the vehicle, the traction motor converts the current transmitted by the inver...

AI Technical Summary

Problems solved by technology

However, the railway is a double track, which involves how to control the left and right wheels synchronously and how to realize the guidance. This solution has not been studied for the special situation of the railway, and it cannot be truly compatible with the operation of the railway. In actual operation, there are complex conditions such as curves and ramps on the line. , the scheme of CN109080374A does not consider these complicated conditions, and cannot realize accurate suspension, guidance and traction / braking

CN109080374A's maglev wheel lateral guidance relies on the axle rod sliding guide mechanism to achieve guidance, it is difficult to adapt to different curve radii when the railway vehicle passes the curve, and under the condition of super high curve, the axle rod sliding guide mechanism is difficult to slide to the outer rail due to gravity , unable to achieve electromagnetic guidance

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