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Method and device for monitoring the driving behavior of a railway vehicle

A technology for rail vehicles and driving status, which is applied in the registration/indication of vehicle operation, railway vehicle testing, registration/instruction, etc. It can solve the problems of high investment, inappropriateness, and inability to comply with preconditions, and achieve the effect of low investment

Active Publication Date: 2012-07-04
KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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  • Description
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  • Application Information

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Problems solved by technology

On the other hand, it is not possible to change the characteristics of the driving section due to external influences, or the reference data must always be kept up-to-date
However, this requires an unduly high investment, so that the prerequisites for using known methods may not be respected in practice

Method used

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  • Method and device for monitoring the driving behavior of a railway vehicle
  • Method and device for monitoring the driving behavior of a railway vehicle
  • Method and device for monitoring the driving behavior of a railway vehicle

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Embodiment Construction

[0034] In the specified operating state, the wheelset of the rail vehicle rolls on the track. Depending on the speed and state of the rail vehicle, the wheelset is excited by a primary vibration. This vibrational excitation leads to vibrations of the wheel sets or their components, on the one hand absolute in space and on the other hand relative to adjacent structures or to each other. A wheelset here typically consists of two wheels connected by an axle, such as figure 1 shown.

[0035] according to figure 1 , one or more sensors 2 are placed on a wheel set 1 of a (not further shown here) rail vehicle, and they preferably detect the wheel set 1 or a part thereof, for example, in the vertical direction as acceleration sensors. acceleration and generate corresponding measurement signals.

[0036] By detecting the measured values ​​of the sensor 2 and transmitting them to the signal detection unit 3 , a time-dependent acceleration profile of the vertical acceleration of the ...

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Abstract

The invention relates to a method for monitoring the driving behavior of a railway vehicle, wherein at least one measurement variable characterizing the vibrational behavior of at least one wheel set of the railway vehicle, such as the displacement, the velocity, or the acceleration of the wheel set, or the force acting on the wheel set is captured by at least one sensor (2) providing a corresponding measurement signal. The method according to the invention comprises the following steps: - identifying at least one significant event or a combination of multiple significant events within the time trace of the measurement signal, wherein the measurement variable exceeds a prescribed minimum value, and identifying the event time at which said significant event took place, - deriving the frequency from the time trace of the measurement signal starting from the event time, wherein the frequency is derived for a defined duration (ta) starting from the event time, - comparing the derived frequency to at least one stored reference frequency, - evaluating the vibrational behavior of the wheel set as a function of the deviation of the derived frequency from the at least one stored reference frequency.

Description

technical field [0001] The invention relates to a method and a device according to the preamble of claim 1 and claim 12 for monitoring the driving state of a rail vehicle, wherein at least one A measured variable that characterizes the vibration state of at least one wheel set of the rail vehicle, such as a movement, velocity or acceleration of the wheel set or a force acting on the wheel set. Background technique [0002] Diagnostic and monitoring systems are increasingly used in rail vehicle traffic today, with which they detect changes in the state of components and assemblies of rail vehicles and thus detect problems with these components and assemblies. Especially in the case of wheelsets for rail vehicles, the detection of damage and cracks is important with regard to operational safety. [0003] According to EP 1 274 979 B1 of the state of the art, the vibration state of at least one vehicle component is monitored by detecting at least one vibration signal, performin...

Claims

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Application Information

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IPC IPC(8): G01M17/10
CPCG01M17/10G07C5/0808B61K9/12
Inventor 弗兰克·京特约尔格-约翰内斯·瓦赫乌尔夫·弗里森斯特凡·泽德尔迈尔
Owner KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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