Air spring height adjusting system and method for medium-low-speed maglev train

Abstract

The invention provides an air spring height adjusting system and method for a medium-low-speed maglev train. A traditional mechanical height adjusting rod is replaced with a height sensor, the phenomenon that a knuckle bearing at the rod end of the height adjusting rod is stuck is avoided, and the reliability of the whole system is improved; a dead zone or an insensitive zone is arranged in a control processing module through a computer program, the insensitive zone can be optimized according to a vehicle structure and load characteristics, the problem that a traditional mechanical height adjusting valve cannot optimize the insensitive zone after a product is formed is solved, continuous oscillation can be avoided by optimizing the insensitive zone. And meanwhile, inflation or exhaust control can be carried out according to the height change rate, so that the time for the height of an air spring to enter a stable state can be further shortened, the fluctuation amplitude in the height adjusting process of the air spring is reduced, a better adjusting effect is obtained, and the riding comfort of passengers is improved.

Description

technical field [0001] The invention belongs to the technical field of maglev trains, and in particular relates to an air spring height adjustment system and method for medium and low-speed maglev trains. Background technique [0002] Medium and low-speed maglev trains are a new type of urban rail transit with broad application prospects. Like traditional urban rail vehicles, in order to ensure that the floor height of the vehicle can be effectively controlled within the range of ±10mm, the vehicle's 4-point or 3-point leveling form In the air spring suspension system, the height adjustment device is mainly used to inflate or exhaust the air spring (referred to as the air spring), so as to compensate the height difference caused by the load change and realize the precise control of the height of the vehicle floor. The air spring suspension system in the form of 4-point or 3-point leveling means that the air springs of each vehicle are divided into four or three groups, and e...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an air spring height adjustment system and method for medium and low speed maglev trains, so as to solve the problem that the existing air spring height adjustment is difficult, difficult to operate, low in adjustment efficiency, mechanical jamming occurs, and the insensitive area cannot be changed. , and vibration affecting ride comfort and other issues

Images