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Braking control for rail vehicles with adaptive lining characteristic curve

A characteristic curve and rail vehicle technology, applied to the operating mechanism of railway vehicle brakes, railway braking systems, ABS control systems, etc., can solve problems such as restrictions and increase technical costs, and achieve the effect of simple control

Active Publication Date: 2018-09-28
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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  • Braking control for rail vehicles with adaptive lining characteristic curve
  • Braking control for rail vehicles with adaptive lining characteristic curve
  • Braking control for rail vehicles with adaptive lining characteristic curve

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] Some advantageous embodiments are described below with the aid of an exemplary braking device for a rail vehicle for providing a friction-coefficient-compensated brake control pressure for a pneumatic braking device of a rail vehicle.

[0020] figure 1 A schematic functional block diagram of the brake control apparatus according to the first embodiment is shown.

[0021] According to a first embodiment, the load pressure regulating, limiting or relay valve is designed such that it is possible, for example during rapid braking, independently of the load correction (L) of the brake pressure c by means of the corresponding load correction unit (L) 12 . In this case, the pressure characteristic curve is additionally changed (eg displaced) by increasing the volume by means of the force-increasing unit (V) 13 in order to compensate for changes in the coefficient of friction caused by changing the type of brake lining. For this purpose, a friction coefficient determination or...

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Abstract

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

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(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