Device for error monitoring of chassis components of rail vehicles

• US 8,276,440 B2
• Filed: 05/16/2008
• Issued: 10/02/2012
• Est. Priority Date: 05/22/2007
• Status: Expired due to Fees

• 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: Mayer, Reinhold, Friesen, Ulf, Wach, Jörg Johannes, Schuhmacher, Johannes, Herden, Marc Oliver
• Primary Examiner(s): McCall, Eric S
• Application Number:
  US12/598,788
• Publication Number:
  US 20100116041A1
• Time in Patent Office: 1,600 Days
• Field of Search: 73/110.4, 73/110.5, 73/110.6, 73/110.7, 73/110.8, 73/110.9, 731/170.1, 731/170.3
• US Class Current: 73/117.01
• CPC Class Codes: B61K 9/00 Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
• CPC Class Codes: B61K 9/04 Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault

Abstract

The invention relates to a device for the error monitoring of chassis components of rail vehicles, including at least one vibration sensor. According to one embodiment of the invention, at least one vibration sensor is arranged on a bogie frame or on a wheel set bearing of an axis of a bogie of the rail vehicle such that the detection direction thereof has a component in the moving direction (x-direction) or a component perpendicular to the moving direction (y-direction) and at the same time a component parallel to the vertical axis (z-direction) of the rail vehicle.

Claims

1. A device for monitoring undercarriage components of rail vehicles for faults, containing at least one vibration pickup wherein at least one vibration pickup is arranged on a bogie frame or on a wheel set bearing of an axle of a bogie of the rail vehicle in such a way that a detection direction of the at least one vibration pickup has a component parallel to a vertical axis (z-axis direction) of the rail vehicle and at the same time a component perpendicular to the vertical axis, and

wherein the detection direction of each vibration pickup of the at least one vibration pickup lies in a plane which is perpendicular to the direction of travel (x-axis direction) and has an angle in a range of 10 to 80 degrees in relation to the vertical axis (z direction) and in relation to an axis (y direction) which is arranged perpendicular to the direction of travel.

2. The device of claim 1, wherein a single vibration pickup is arranged on the bogie frame of the bogie.

3. The device of claim 1, wherein the at least one vibration pickup is arranged on just one wheel set bearing of the wheel set bearings of an axle of the bogie.

4. The device of claim 1, wherein at least one vibration pickup is embodied as an acceleration sensor and is integrated, together with at least one speed sensor for measuring the instantaneous wheel speed and/or with a temperature sensor for measuring the instantaneous bearing temperature of a wheel set bearing, in a combination sensor.

5. The device of claim 1, further comprising at least one electronic evaluation unit which is provided as an integral component of an anti-skid and/or brake control system of the rail vehicle.

6. The device claim 1, wherein at least two of the vibration pickups are redundant to one another.