Active suspension control system of rail vehicle and magnetic vacuum active shock absorber thereof

Abstract

The invention discloses a magnetic vacuum active shock absorber. The magnetic vacuum active shock absorber comprises a shock absorbing cylinder body, a first electromagnet assembly fixedly arranged inthe shock absorbing cylinder body, a second electromagnet assembly which is axially and slidably arranged in the shock absorbing cylinder body and is opposite to the first electromagnet assembly, a shock absorbing output rod which is connected with the second electromagnet assembly and is used for being connected with a shock absorbing part, and a current controller which is electrically connected with the first electromagnet assembly and the second electromagnet assembly and is used for controlling the attribute of current introduced into the first electromagnet assembly and the second electromagnet assembly so as to change the magnetic force between the first electromagnet assembly and the second electromagnet assembly, wherein the current controller is in signal connection with an ECUso as to adjust the attribute of the current introduced into the first electromagnet assembly and the second electromagnet assembly according to the load change of the shock absorbing part. Accordingto the magnetic vacuum active shock absorber, active suspension of a rail vehicle can be realized, the shock absorbing effect is guaranteed to respond to the load change of the vehicle in real time, the operation stability and comfort of the rail vehicle are improved, and meanwhile, the service life of the shock absorbing part is prolonged. The invention further discloses an active suspension control system of the rail vehicle, and the active suspension control system has the beneficial effects mentioned above.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a magnetic vacuum active shock absorber. The invention also relates to a rail vehicle active suspension control system. Background technique [0002] With the development of rail transit technology, more and more rail transit vehicles have been put into use. [0003] At present, different types of rail transit vehicles have been developed, including locomotives, trains, high-speed rails, subways, light rails, trams, etc. The overall structure of rail transit vehicles is mainly divided into bogies and car bodies. In order to realize the normal driving, steering, braking, traction and other functions of rail transit vehicles, various systems or components are installed on the bogies and car bodies at the same time, such as Driving system, steering system, braking system, traction system, suspension system, cooling system, etc. Taking the suspension system as an example, the...

AI Technical Summary

Problems solved by technology

Although the passive suspension method has a certain vibration reduction effect, there is always a certain lag in the effective time of the buffer and vibration reduction, and it is difficult to closely follow the rail vehicle in the rapid change of load

In recent years, with the development of suspension technology, the secondary suspension system of passenger vehicles, especially high-speed railway vehicles, has begun to apply air support technology, that is, the purpose of maintaining the height of the secondary suspension within a certain range through mechanical control and pressure control, but it is still not possible. Realize the active suspension of the secondary suspension system

Since the entire vehicle suspension system cannot achieve full active suspension, the comfort and stability of the vehicle are greatly reduced. The problem of oil leakage and wear failure of anti-serpentine shock absorbers is becoming more and more serious, especially on high-speed railways, the service life of these suspensions is getting shorter and shorter

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