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Control soundness determination device

A technology for judging device and soundness, applied in general control system, control/regulation system, testing/monitoring control system, etc., can solve the problems of undetectable abnormality, false detection, time-consuming and so on

Inactive Publication Date: 2019-04-02
KYB CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the case of using the two values ​​of the control pressure command value and the vibration acceleration, the reference values ​​are set separately. If the two do not exceed the reference value, the abnormality cannot be detected. Since the vibration acceleration is used, the abnormality cannot be detected. would take time before
[0006] In addition, when the amplitude of the vibration acceleration continuously exceeds the reference value as an abnormality, there is a possibility that the abnormality may be misdetected due to noise or the like.

Method used

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Examples

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Embodiment Construction

[0012] Hereinafter, the present invention will be described based on the illustrated embodiments. In the control soundness judgment device 1 of one embodiment, in this example, the vehicle body B of the railway vehicle and the actuator A for suppressing the vibration of the vehicle body B are used as the equipment P to vibrate the vehicle body B. Control soundness judgment of the vibration suppressing device VC for suppressed railway vehicles is performed.

[0013] Specifically, such as figure 1 As shown, the control soundness judging device 1 is composed of the following parts: an acceleration sensor 2 that detects the acceleration a of the vehicle body B in the horizontal direction with respect to the direction of travel of the vehicle; a judging unit 3 that judges the control soundness sex.

[0014] Hereinafter, each part will be described in detail. In this example, the vibration suppressing device VC is a vibration suppressing system that includes an actuator A and a c...

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Abstract

This control soundness determination device (1) is constituted by comprising: a sensor (2) that detects a control amount (a) of a plant (P) with respect to a control input (u) which is input to the plant (P); and a determination unit (3) that determines control soundness on the basis of a soundness index (I) obtained by multiplying the control input (u) and a derivative value (da / dt) of the control amount (a).

Description

[0001] Range of technical fields [0002] The present invention relates to an improvement of a control soundness judging device. Background technique [0003] Conventionally, such a control soundness judgment device has, for example, a railway vehicle equipped with a device for detecting an abnormality of a vibration suppression device for a railway vehicle that suppresses vibration in the lateral direction with respect to the traveling direction of the vehicle body. [0004] More specifically, in the control soundness judging device as disclosed in JP11-222128A, for example, when the control pressure command value for the actuator exceeds the pressure reference value, and the vibration acceleration of the vehicle body exceeds the acceleration reference value, the phenomenon continues to occur. In the case of a preset number of times or in the case where the amplitude of the vibration acceleration exceeds the reference value continuously, it is determined to be abnormal. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02B61F5/24F16F15/02
CPCB61F5/24G05B23/0235F16F15/002F16F15/027F16F15/02G05B23/02B61F5/245
Inventor 小川贵之
Owner KYB CORP
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