Brake control system with adaptive lining characteristic curve for rail vehicles

A characteristic curve, rail vehicle technology, applied in the operation mechanism of rail vehicle brake, railway brake system, ABS control system, etc., can solve the problems of limitation, increase technical cost, etc., and achieve the effect of simple control

Active Publication Date: 2021-03-02
KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This limits the operator's choice of possible brake lining types and leads to increased technical costs when planning replacement brake lining types

Method used

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  • Brake control system with adaptive lining characteristic curve for rail vehicles
  • Brake control system with adaptive lining characteristic curve for rail vehicles
  • Brake control system with adaptive lining characteristic curve for rail vehicles

Examples

Experimental program
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Embodiment Construction

[0021] Advantageous embodiments for providing a friction coefficient-compensated brake control pressure for a pneumatic brake of a rail vehicle are described below with reference to an exemplary brake device for a rail vehicle.

[0022] figure 1 A schematic functional block diagram of the brake control system according to the first exemplary embodiment is shown.

[0023] According to a first embodiment, the load pressure regulating, limiting or relay valve is designed to be independent of the load correction (L) of the brake pressure c by means of the corresponding load correction unit (L) 12 , for example during rapid braking , the pressure characteristic curve is additionally changed (for example shifted) by increasing the volume by means of booster unit (V) 13 in order to compensate for changes in the coefficient of friction caused by changing the type of brake lining. For this, a coefficient of friction determination or coefficient of friction adaptation unit 11 is first ...

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PUM

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Abstract

The invention relates to a device and a method for controlling a brake system of a rail vehicle, wherein the braking is varied by means of a characteristic curve changing device (13) as a function of the friction properties of the type of brake lining used in the brake system The pressure characteristic curve of the device.

Description

technical field [0001] The invention relates to a device and a method for controlling braking devices for rail vehicles. Background technique [0002] In modern rail vehicles, pneumatic or hydraulic brakes are usually used, which are controlled by an electronic brake control. During the vehicle certification process, pneumatically or mechanically operated regulating and limiting valves for the load pressure are adapted to the characteristics of the brake linings. Here, the friction coefficient (μ) averaged over time between the brake friction surfaces (eg brake lining and brake disc) is usually used, which indicates the type of brake lining (Bremsbelagtyp, brake lining Pad type) or characteristics of the brake lining category (Bremsbelagsorte, brake lining grade). The pressure regulating system is then set in such a way that (additionally via load pressure compensation) the desired brake cylinder pressure is produced during rapid braking. [0003] From WO 2010 / 069520 A2 a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/17B60T8/18B60T8/56
CPCB60T8/1818B60T8/56B60T2270/14B60T8/1705B60T8/171B61H13/34
Inventor M-O·赫登
Owner KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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