Decoupling control method for bogie suspension system of electromagnetic maglev train

Abstract

Disclosed is a decoupling control method for a bogie suspension system of an electromagnetic maglev train. The decoupling control method includes steps of (1), setting suspension points: respectively defining magnet modules on two sides of a bogie as a magnet module A and a magnet module B, controlling the magnet module A via two suspension points including a first suspension point and a second suspension point, and controlling the magnet module B via two suspension points including a third suspension point and a fourth suspension point; (2), controlling the magnet module A: controlling the first suspension point and the second suspension point of the magnet module A in an equal gap manner, and accordingly keeping a stable gap between the first suspension point and the second suspension point as a set value; and (3), controlling the magnet module B: coordinately controlling the third suspension point and the fourth suspension point of the magnet module B comprehensively according to states of the third suspension point and the fourth suspension point, accordingly, keeping an average gap value as a set value, and controlling the difference of gaps and the difference of suspension force within certain ranges. By the aid of the decoupling control method, requirements of the bogie on decoupling functions can be lowered, and safety and comfort of the suspension system of the maglevtrain can be improved.

Description

technical field [0001] The invention mainly relates to the field of suspension control of electromagnetic maglev trains, in particular to a control method suitable for the suspension system of the bogie of electromagnetic maglev trains. Background technique [0002] The bogie is the basic structural unit of the maglev train tracking track. For the electromagnetic maglev train, a levitation magnet module is installed at the bottom of each bogie along the two sides of the track, and a levitation point is set at each end of each module. The whole bogie consists of Four-point control realizes suspension. Since the four suspension points are connected by mechanical structures, there is coupling between them. In order to avoid the adverse effects of this coupling on the bogie itself and its suspension performance, decoupling control of the bogie is required. [0003] In the prior art, the four-point equal gap control method is usually used for decoupling, that is, the four suspen...

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Problems solved by technology

[0004] However, when using the four-point equal gap control method, the structure and function of the bogie are more complicated

This is because each suspension point is only adjusted according to the clearance. When the rails on both sides are not coplanar, in order to achieve the effect of constant clearance control, the bogie must have the same degree of non-coplanarity with the rails, either through the movement of the components To achieve, or through the deformation of components, but these will lead to more complex structure and function of the bogie

For example, relying on the torsion of the longitudinal beam for decoupling, the structure of the bogie is complex, and it is difficult to design and manufacture; the frequent torsion of the longitudinal beam also shortens its service life, resulting in difficult material selection, high cost, risk of fracture, and high maintenance costs. question

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