Train slipping or idling detection method and device

A technology for measuring speed of trains, applied in transportation and packaging, safety devices of power plant control mechanisms, vehicle components, etc., can solve problems such as large errors, affecting speed compensation, misjudgment and missed judgment, etc., to improve measurement accuracy, The effect of improving the speed compensation accuracy

Active Publication Date: 2018-06-29
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above detection method has the problem of large error, which is prone to misjudgment and missed judgment, which will affect the speed compensation.

Method used

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  • Train slipping or idling detection method and device
  • Train slipping or idling detection method and device
  • Train slipping or idling detection method and device

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Embodiment Construction

[0017] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar modules or modules having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are only for explaining the present application, and should not be construed as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0018] figure 1 It is a schematic flowchart of a method for detecting train slipping or idling proposed by an embodiment of the present application.

[0019] Such as figure 1 As shown, the method of the present embodiment includes:

[0020] S101: Obtain a measured speed value detected by a wheel axle sensor.

[0021] Wheel axle sensors are installed on th...

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Abstract

The application provides a train slipping or idling detection method and device. The method comprising: acquiring a measured speed value detected by an axle sensor, and obtaining a filtered measured speed value; calculating a predicted speed value; estimating a first speed difference ratio according to the predicted speed value and the filtered measured speed value; acquiring a radar speed measurement value obtained by a Doppler radar, and obtaining a filtered radar speed measurement value; acquiring a measured acceleration value obtained by an acceleration sensor; calculating a theoretical speed value; calculating an average speed value of the filtered radar speed measurement value and the theoretical speed value, and calculating a second speed difference ratio according to the estimatedspeed value and the average speed value; calculating a difference ratio between the first speed difference value and the second speed difference ratio; and judging whether the train slips or idles based on the difference ratio and the running state of the train. The method can improve the detection accuracy and then improve the speed compensation accuracy.

Description

technical field [0001] The present application relates to the technical field of train automatic protection, in particular to a method and device for detecting train slipping or idling. Background technique [0002] With the development of train operation control technology, the new trend is to enhance the autonomous control capability of the train. In the case of reducing or not relying on trackside equipment at all, the positioning parameter measurement can be completed by the train itself and the train operation safety can be guaranteed. It is inevitable that the train will idling or slipping during operation. In order to reduce the impact of idling or slipping on speed measurement and positioning, it is necessary to complete the detection of idling or slipping and the corresponding speed compensation. [0003] In related technologies, taking slip detection as an example, a speed difference detection method or an acceleration detection method is usually used. The speed d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/1761B60T8/17B60T8/175B61L25/02B61L27/04
CPCB60T8/1705B60T8/175B60T8/1761B61L25/021B61L27/04
Inventor 欧阳盛聪苏波王发平
Owner BYD CO LTD
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