METHOD AND DEVICE FOR ANALYZING A SCATTERING MATERIAL AND FOR CONTROLLING THE APPLICATION OF A SCATTERING MATERIAL TO A RAIL FOR A RAIL VEHICLE

• US 20150353101A1
• Filed: 12/27/2013
• Published: 12/10/2015
• Est. Priority Date: 01/11/2013
• Status: Active Grant

• Current Assignee: Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH (Estate of Heinz Hermann Thiele)
• Original Assignee: Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH (Estate of Heinz Hermann Thiele)
• Inventors: HERDEN, Marc-Oliver, RASEL, Thomas
• Granted Patent: US 9,783,208 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B61C 15/10 by depositing sand or like friction increasing materials for vehicles in general B60B; combined control of sanding apparatus and brakes B61H

Abstract

A method for analyzing a scattering material located at a contact point between a rail and a wheel of a rail vehicle wherein the scattering material improves the force closure between the rail and the wheel. The method reads in a motion signal that represents a motion of the wheel caused by the scattering material located on the rail and evaluates the motion signal to analyze the scattering material located on the rail.

Claims

1. A method for analyzing a scattering material located at a contact point between a rail and a wheel of a rail vehicle for improving the frictional connection between the rail and the wheel, the method comprising:

reading in a movement signal representing a movement of the wheel caused by the scattering material located on the rail; and

evaluating the movement signal in order to analyze the scattering material located on the rail.

2. The method of claim 1, wherein the movement signal represents a course over time of the movement of the wheel or a signal determined from the course over time of the movement of the wheel.

3. The method of claim 1, wherein a frequency spectrum of the movement signal is evaluated in the evaluation to analyze the scattering material located on the rail.

4. The method of claim 1, wherein, in the evaluation, profiles of a plurality of successive deflections in a course of the movement signal are evaluated to analyze the scattering material located on the rail.

5. The method of claim 1, wherein a density of the scattering material at the contact point is determined in the evaluation step with use of the movement signal to analyze the scattering material.

6. The method of claim 1, wherein an embedding of the scattering material in a foreign layer located on the surface of the rail is determined in the evaluation step with use of the movement signal to analyze the scattering material.

7. A method for controlling the application of a scattering material to a rail for a rail vehicle, the method comprising:

reading in a movement signal representing a movement of the wheel caused by the scattering material located on the rail and evaluating the movement signal in order to analyze the scattering material located on the rail to obtain an analysis result with regard to a scattering material located at a contact point between the rail and a wheel of the rail vehicle;

adapting an application instruction for applying the scattering material to the rail with use of the analysis result; and

providing a control signal to apply the scattering material to the rail in accordance with the application instruction.

8. A device for analyzing a scattering material located at a contact point between a rail and a wheel of a rail vehicle or for controlling the application of a scattering material to a rail for a rail vehicle, wherein the device has units that control the application of a scattering material to a rail for a rail vehicle by reading in a movement signal representing a movement of the wheel caused by the scattering material located on the rail and evaluating the movement signal in order to analyze the scattering material located on the rail.

9. A scattering system for applying a scattering material to a rail for a rail vehicle, the system comprising:

a scattering unit for applying the scattering material to the rail; and

a device that controls the application of a scattering material to a rail for a rail vehicle by reading in a movement signal representing a movement of the wheel caused by the scattering material located on the rail and evaluating the movement signal in order to analyze the scattering material located on the rail.

10. (canceled)