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Control system with adhesion map for rail vehicles

A technology for rail vehicles and braking systems, which is applied in the field of control equipment for braking systems or auxiliary systems, and can solve problems such as collisions, train collisions, casualties, etc.

Inactive Publication Date: 2018-07-17
KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a potential for serious accidents due to low adhesion conditions
Historically, although sticking-related incidents rarely result in accidents, if they do, the most likely outcome is a collision where the train fails to stop when signaled
Although modern rail vehicles have high standards of crashworthiness, train collisions have the potential to cause loss of life

Method used

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  • Control system with adhesion map for rail vehicles
  • Control system with adhesion map for rail vehicles
  • Control system with adhesion map for rail vehicles

Examples

Experimental program
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Embodiment Construction

[0020] In the following, preferred embodiments of the invention will be described on the basis of an auxiliary system or brake control system combined with an adhesion measurement and storage system for a train (as an example of a rail vehicle).

[0021] figure 1 A schematic block diagram of a train car with additional equipment for on-board determination of wheel-rail adhesion values ​​(eg μ values) is shown. exist figure 1 In the example of , the train car comprises four axles A1 to A4 with corresponding wheels 19 . Braking forces can be applied to the wheels 19 via corresponding pneumatically controlled brake actuators, such as brake cylinders 18 . The pressure for controlling the brake cylinders 18 is supplied from the auxiliary cylinder 16 via a distributor 14 which is also connected to the main brake pipe 12 of the train (eg in the case of conventional train braking procedures).

[0022] When performing specific procedures for sticking determination (in addition to co...

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PUM

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Abstract

The present invention relates to a system and method of controlling an assistance system or a break system of a rail vehicle, wherein an adhesion value of a wheel-to-rail contact of at least one wheel(19) of the rail vehicle and a current location information of the rail vehicle are determined. Then, the determined adhesion value is assigned to a railroad map based on the location information. Bycollection of a plurality of the assigned adhesion values at different locations, a track adhesion map or database for controlling the assistance system or the brake system is obtained.

Description

technical field [0001] The invention relates to a control device and a method for controlling a braking system or an auxiliary system of a rail vehicle. Background technique [0002] Different types of brakes are used to brake rail vehicles. Generally, so-called "stick-dependent" brakes are used as conventional service brakes. Such adhesion-dependent brakes transmit braking force via the contact between the wheel and the track. However, this contact has only a limited ability to receive braking forces. The ability to receive braking forces via wheel / rail contact is defined by the adhesion between the wheels / rails. [0003] Traction or friction may be reduced when the track becomes greasy from rain, oil, or decomposed leaves compacted into a hard, smooth lignin coating. If the steering force applied to brake the wheel exceeds the braking force that the adhesion can transfer, the wheel may start to slip or lock. In order to prevent this from happening, the braking systems...

Claims

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Application Information

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IPC IPC(8): B61L3/00B60T8/17B61L15/00
CPCB60T8/1705B61L15/0081B60T2210/12B60T2210/36B61L15/0058
Inventor M·克莱默I·科姆洛希
Owner KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH