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1. CN113624997 - Acceleration sensor fault diagnosis method and system

Office
China
Application Number 202010623147.1
Application Date 30.06.2020
Publication Number 113624997
Publication Date 09.11.2021
Publication Kind A
IPC
G01P 21/00
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
21Testing or calibrating of apparatus or devices covered by the other groups of this subclass
CPC
G01P 21/00
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
21Testing or calibrating of apparatus or devices covered by the preceding groups
Applicants ZHUZHOU CRRC TIMES ELECTRIC CO., LTD.
株洲中车时代电气股份有限公司
CRRC ZHUZHOU INSTITUTE CO., LTD.
中车株洲电力机车研究所有限公司
Inventors SHANG JING
尚敬
HOU ZHAOWEN
侯招文
GUO WEI
郭维
XU SHAOLONG
徐绍龙
GAN WEIWEI
甘韦韦
CHEN QIHUI
陈启会
LIU LIANGJIE
刘良杰
XU YIJING
许义景
WANG WENTAO
王文韬
CHEN KE
陈科
YI DI
易笛
ZHANG YING
张颖
Agents 上海专利商标事务所有限公司 31100
Title
(EN) Acceleration sensor fault diagnosis method and system
(ZH) 一种加速度传感器故障诊断方法及系统
Abstract
(EN) The invention discloses an acceleration sensor fault diagnosis method and system, which are applied to a suspension system. The method comprises the steps of: collecting an acceleration signal and a gap signal; processing the acceleration signal and the gap signal at a specific frequency band to obtain a deviation value; comparing the deviation value with a threshold to obtain fault information of the acceleration sensor; and when it is detected that the acceleration sensor breaks down, further judging whether other acceleration sensors in the suspension system break down or not, if the other acceleration sensors do not break down, continuing to control the suspension system by using signals collected by the other acceleration sensors, and if the other acceleration sensors break down, switching to control without using the acceleration sensors. According to the invention, the fault of the acceleration sensor can be effectively diagnosed without increasing any hardware cost.
(ZH) 本发明公开揭示了一种加速度传感器故障诊断方法和系统,应用于悬浮系统,所述方法包括:采集加速度信号和间隙信号;在特定频段对所述加速度信号和所述间隙信号进行处理,获得偏差值;根据所述偏差值与阈值比较,获得加速度传感器故障信息;当检测到所述加速度传感器发生故障,进一步判断悬浮系统中其他加速度传感器是否发生故障,若所述其他加速度传感器无故障,采用所述其他加速度传感器采集的信号继续用于所述悬浮系统的控制,若所述其他加速度传感器发生故障,切换至不使用所述加速度传感器的控制。本发明可以在不增加任何硬件成本情况下有效诊断出加速度传感器故障。
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