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Intermittent fault detection method and system of ATO (automatic train operation) controlled high-speed train brake system

A braking system and detection method technology, applied in the direction of braking safety system, braking control system, brake, etc., can solve the difficulty of monitoring the performance of the braking system, the inability to realize effective detection of intermittent faults, and the inability to timely and accurately determine intermittent faults. Accurate detection of faults, intermittent faults, real-time monitoring of braking system performance, etc.

Active Publication Date: 2015-09-02
TSINGHUA UNIV
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Problems solved by technology

[0004] The principle of the braking system is not complicated, but due to the characteristics of the braking system such as delayed system response and slow command transmission speed, it is very difficult to monitor the performance of the braking system
Most of the existing detection methods for braking systems are data-driven methods for permanent faults, which require a large amount of sensor measurement data, and are limited by the hardware resources of high-speed trains. They can only perform simple detection, but cannot detect intermittent faults. Effective detection, let alone timely and accurate determination of the occurrence and disappearance of intermittent faults to achieve accurate detection of intermittent faults and real-time monitoring of braking system performance

Method used

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  • Intermittent fault detection method and system of ATO (automatic train operation) controlled high-speed train brake system
  • Intermittent fault detection method and system of ATO (automatic train operation) controlled high-speed train brake system
  • Intermittent fault detection method and system of ATO (automatic train operation) controlled high-speed train brake system

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Embodiment Construction

[0072] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0073] In addition, the steps shown in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although a logical order is shown in the flow diagrams, in some cases, the sequence may be different. The steps shown or described are performed in the order herein.

[0074] Such as figure 1 Shown is a flowchart of an intermittent fault detec...

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Abstract

The invention discloses an intermittent fault detection method and system of an ATO (automatic train operation) controlled high-speed train brake system. The method includes the steps of establishing a linear approximation model of the high-speed train brake system under the influence of intermittent faults; based on the linear approximation model, establishing a scalar residual generator for intermittent faults of an actuator of the high-speed train brake system; based on the scalar residual generator, generating a detection signal, and performing hypothesis testing via the detection signal so as to detect the intermittent faults of the high-speed train brake system. The intermittent fault detection method and system has the advantages that the intermittent faults of high-speed trains can be accurately and quickly detected under the unknown disturbances and measurement noises, detection performance is quantified, and detectability of the intermittent faults is analyzed.

Description

technical field [0001] The invention relates to the technical field of fault diagnosis of high-speed train braking systems, in particular to a detection method and system for intermittent faults of high-speed train braking systems controlled by ATO (Automatic Train Operation, automatic train operating device). Background technique [0002] The braking system is an important part of the high-speed train operation control system, which is directly related to the safety of the high-speed train operation. Braking distance and precise stopping are important indicators to measure the performance of the braking system and the braking capacity. The braking power of a high-speed train is not only proportional to the cube of the train's running speed, but also inversely proportional to the braking distance. Therefore, performance monitoring of the braking system of high-speed trains and timely detection of intermittent faults of the braking system are important guarantees for improvi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22
CPCB60T17/228B60T2270/406
Inventor 周东华何潇鄢镕易
Owner TSINGHUA UNIV
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