Compressed-air brake assembly for a rail vehicle

Patent metadata

Field	Value
Publication number	US-10843676-B2
Application number	US-201515127283-A
Country	US
Kind code	B2
Filing date	Mar 9, 2015
Priority date	Mar 20, 2014
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A compressed-air brake assembly for a rail vehicle includes at least one brake cylinder for producing a pressing force for a friction brake, wherein at least one control valve forms a corresponding brake-cylinder pressure in accordance with a pressure in a main air line conducted to the at least one brake cylinder via a line arranged therebetween. The at least one control valve interacts with at least one compressed-air sensor. A reserve-air tank can be controlled by the at least one control valve and stores the reserve air for the at least one brake cylinder. At least one compressed-air sensor arranged on the at least one control valve is connected to an energy source and a data memory having an interface for reading out data, wherein the data in the data memory contain information about a pressure level in the at least one brake cylinder.

First claim

The invention claimed is:

1. A compressed-air brake assembly for a rail vehicle, comprising:
at least one brake cylinder for generating a pressing force for a friction brake;
at least one control valve forming a corresponding brake-cylinder pressure in accordance with a pressure in a main air line;
a line arranged between the at least one control valve and the at least one brake cylinder, which conducts the brake cylinder pressure to the at least one brake cylinder;
at least one compressed-air sensor which interacts with—the at least one control valve;
a supply air vessel actuatable by the at least one control valve and storing the supply air for the at least one brake cylinder;
an energy source for an energy supply; and
a data memory having an interface for reading out data,
wherein the at least one compressed-air sensor is arranged on the at least one control valve and is connected to the energy source for the energy supply and is also connected, for the purpose of data storage, to the data memory,
wherein the data which is stored in the data memory contain at least one item of information about a pressure level in the at least one brake cylinder, wherein the stored data comprise a multiplicity of braking and release cycles of the at least one brake cylinder, and
wherein the stored data is read out, via the interface, from an electronic reading and evaluating unit which has software for evaluating data, the software containing at least information about control valve behavior regulations
and
wherein the electronic reading and evaluating unit has software for evaluating data and providing a diagnosis for the at least one control valve.

2. A compressed-air brake assembly for a rail vehicle, comprising:
at least one brake cylinder for generating a pressing force for a friction brake;
at least one control valve forming a corresponding brake-cylinder pressure in accordance with a pressure in a main air line;
a line arranged between the at least one control valve and the at least one brake cylinder which conducts the brake-cylinder pressure to the at least one brake cylinder;
at least one compressed-air sensor which interacts with the at least one control valve;
a supply air vessel actuatable by the at least one control valve, and storing the supply air for the at least one brake cylinder;
an energy source for an energy supply; and
a data memory having an interface for reading out data,
wherein the at least one compressed-air sensor is arranged on the line arranged between the at least one control valve and the at least one brake cylinder and the at least one compressed-air sensor is connected directly to the energy source for the energy supply and connected, for the purpose of data storage, to the data memory,
wherein the data which is stored in the data memory contain at least one item of information about a pressure level in the at least one brake cylinder, information as to whether the at least one control valve is operating according to regulations, how frequently it has been in action since it was last reconditioned, and how a state is to be assessed compared to a normal state, and
wherein the stored data is read out, via the interface, from an electronic reading and evaluating unit which has software for evaluating data and providing a diagnosis for the at least one control valve.

3. The compressed-air brake assembly of claim 1 , wherein the interface comprises a transponder which is connected to the electronic reading and evaluating unit for the cableless transmission of the stored data by electromagnetic waves.

4. The compressed-air brake assembly of claim 1 , wherein the electronic reading and evaluating unit is arranged directly on the interface for evaluating the data and displaying three different states.

5. The compressed-air brake assembly of claim 1 , further comprising at least one second compressed air sensor for determining the pressure arranged in the main air line.

6. The compressed-air brake assembly of claim 1 , wherein the energy source comprises a micro-turbine which, in response to a change in pressure, uses the flowing air to generate energy for the at least one compressed-air sensor and a data storage means.

7. The compressed-air brake assembly of claim 1 , wherein the energy source comprises a pressure/electricity converter.

8. The compressed-air brake assembly of claim 1 , wherein the energy source comprises an energy store.

9. The compressed-air brake assembly of claim 2 , wherein the stored data is read out, via the interface, from an electronic reading and evaluating unit which has software for evaluating data.

10. The compressed-air brake assembly of claim 2 , wherein the stored data comprise a multiplicity of braking and release cycles of the at least one brake cylinder.

11. The compressed-air brake assembly of claim 2 , wherein the interface comprises a transponder which is connected to the electronic reading and evaluating unit for the cableless transmission of the stored data by electromagnetic waves.

12. The compressed-air brake assembly as claimed in claim 9 , wherein the electronic reading and evaluating unit is arranged directly on the interface for evaluating the data and displaying three different states.

13. The compressed-air brake assembly of claim 2 , further comprising at least one second compressed air sensor for determining the pressure arranged in the main air line.

14. The compressed-air brake assembly of claim 2 , wherein the energy source comprises a pressure/electricity converter.

15. The compressed-air brake assembly of claim 2 , wherein the energy source comprises an energy store.

Assignees

• Knorr Bremse Systeme

Inventors

• Heller Martin
• Anton Thomas
• Wach Jorg-Johannes
• Holz Michael
• Cordes Matthias

Classifications

• B60T13/665

  the systems being specially adapted for transferring two or more command signals, e.g. railway systems (B60T13/662 takes precedence) · CPC title

• B60T15/021 Primary

  Railway control or brake valves · CPC title

• B60T13/365

  for railway vehicles · CPC title

• B60T17/228

  for railway vehicles · CPC title