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A variable damping anti-snaking shock absorber control system and control method

A shock absorber and anti-snake technology, applied in buffers, railway car body parts, transportation and packaging, etc., can solve the problem that there is no application example of variable damping anti-snake vibration control system, and improve dynamic performance. , The effect of reducing the line grinding work and prolonging the repair cycle

Active Publication Date: 2021-03-19
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

For high-speed EMUs, there is no application example of variable damping anti-snaking vibration reduction control system

Method used

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  • A variable damping anti-snaking shock absorber control system and control method
  • A variable damping anti-snaking shock absorber control system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] refer to figure 1 , the present invention provides a variable damping anti-snaking shock absorber control system, which is characterized in that it includes:

[0021] The vehicle running speed signal judging module is used to monitor the vehicle running speed in real time, and output a logic signal according to the preset logic;

[0022] The solenoid valve opening and closing signal judgment module is used to monitor the opening and closing status of the solenoid valve of the variable damping anti-snake shock absorber in real time, and output a logic signal according to the preset logic;

[0023] The frame vibration signal judging module is used to monitor the frame vibration signal in real time, and output the logic signal according to the preset logic;

[0024] The vehicle body vibration signal judging module is used to monitor the vehicle body vibration signal in real time, and output the logic signal according to the preset logic;

[0025] The solenoid valve power...

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PUM

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Abstract

The invention discloses a variable damping anti-yaw damper control system. According to the interactive relationship between a speed signal judgment module, a solenoid valve opening and closing signaljudgment module, a framework vibration signal judgment module, a body vibration signal judgment module and a solenoid valve power supply driving module, the running quality of a motor train unit is judged in real time, damping parameters of a variable damping anti-yaw damper are regulated in real time, so that the motor train unit provided with the control system can adapt to change of wheel-railmatching equivalent taper under different line conditions and in different wheel wear periods, vehicle dynamics performances are improved, wheel turning repair cycle is prolonged, unnecessary line grinding operation is reduced, and a control method is simple and reliable.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle anti-serpentine shock absorber control, and in particular relates to a variable damping anti-snake shock absorber control system. Background technique [0002] The dynamic performance of high-speed EMUs is closely related to the bogie wheel-rail matching and suspension parameters. Especially when the EMU is running at high speed, the dynamic performance of the vehicle is very sensitive to the changes of the wheel tread profile, the stiffness of the primary positioning node and the damping parameters of the anti-snaking shock absorber. Specifically, when the wheel is a new unworn wheel, the equivalent taper of the wheel after matching the theoretical rail profile is low; big. Usually, the stiffness of a series of positioning nodes and the damping parameters of the anti-snaking damper can adapt to the change of the equivalent taper of the wheel and rail in different wear periods. However, due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61G11/00
CPCB61G11/00
Inventor 范军韩光旭王泽飞宋春元崔利通
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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