A control method and device for an anti-snaking shock absorber

A control method and shock absorber technology, applied in shock absorbers, spring/shock absorber design features, shock absorbers, etc., can solve the problem of no MPPT algorithm anti-snake shock absorber, etc., to improve dynamic stability Sexuality, the effect of improving adaptability

Active Publication Date: 2020-04-28
CRRC QINGDAO SIFANG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The MPPT algorithm has been widely used since its creation, but so far, it has not been found that the MPPT algorithm is applied to the control of the anti-snaking damper

Method used

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  • A control method and device for an anti-snaking shock absorber
  • A control method and device for an anti-snaking shock absorber
  • A control method and device for an anti-snaking shock absorber

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] like figure 1 As shown, the control method of the anti-snaking damper provided by the embodiment of the present invention includes:

[0028] Step 101, acquiring a lateral acceleration signal of a frame, and performing a first preprocessing on the lateral acceleration signal.

[0029] figure 2 It shows the lateral vibration acceleration ...

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Abstract

Embodiments of the present invention provide a control method and device for an anti-snaking damper, including acquiring a lateral acceleration signal of a frame, and performing a first preprocessing on the lateral acceleration signal; acquiring the pressure difference between two chambers of the anti-snaking damper piston, And carry out the second preprocessing to the pressure difference; according to the first preprocessing result and the second preprocessing result, obtain the MPPT algorithm objective function value at the current moment and the MPPT algorithm objective function value at the previous moment, and use the MPPT algorithm at the current moment The objective function value is compared with the MPPT algorithm objective function value at the previous moment; according to the comparison result, the adjustment direction of the electromagnetic proportional valve of the anti-snake shock absorber is controlled. According to the method, the damping force of the anti-snaking shock absorber can be adjusted in real time, and the adaptability of the shock absorber under different wheel wear states and the dynamic stability of the EMU can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of shock absorber control, and in particular, to an anti-snaking shock absorber control method. Background technique [0002] With the progress of society and the development of economy, the transportation industry has profoundly affected the lives of ordinary people. Railway transportation is the main force of my country's transportation, and electric locomotives, one of the driving forces of railway transportation, are developing rapidly. [0003] One of the key factors to ensure the safe operation of the locomotive is the bogie, which plays an extremely important role in the safety, comfort, and reliability of the locomotive, as well as reducing the force on the track and reducing environmental pollution. Among them, the anti-snaking damper is one of the important components to keep the bogie stable, and its parameter matching is also one of the key factors for the safety of train operation. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/24F16F9/504F16F9/512
CPCB61F5/245F16F9/504F16F9/512F16F2222/12F16F2230/0047F16F2230/08F16F2230/183F16F2232/02
Inventor 孔海朋王旭曹洪勇曹晓宁周平宇
Owner CRRC QINGDAO SIFANG CO LTD
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