公开(公告)号：US09331350B2

公开(公告)日：2016-05-03

申请号：US14269922

申请日：2014-05-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oliver Maier ,  Bernd Peter Elgas ,  Ulrich Dumke ,  Peter Willimowski

IPC: H01M10/04 ,  H01M8/04 ,  F04D27/00 ,  F04D29/66 ,  H02H7/09

CPC classification number: H01M8/04686 ,  F04C2240/50 ,  F04C2270/80 ,  F04D27/001 ,  F04D29/662 ,  H01M8/04089 ,  H02H7/09 ,  Y02E60/50

Abstract: A diagnostic system for determining whether a rotor shaft of a compressor is unbalanced. The compressor includes a displacement sensor that measures the displacement of the rotor shaft as it is rotating. The sensor dynamic frequency signal is sent to a bandpass filter that filters out an eigen-frequency frequency that is a function of shaft elasticity and rotor dynamics. The filtered frequency signal is then rectified by a rectifier to make the filtered frequency signal positive. The rectified signal is then passed through a low pass filter that converts the rectified signal to a DC signal. The DC signal is then sent to a controller that determines if the amplitude of the signal is above a predetermined threshold, which indicates a problem with the balance of the compressor.

Abstract translation: 用于确定压缩机的转子轴是否不平衡的诊断​​系统。 压缩机包括位移传感器，其测量转子轴在旋转时的位移。 传感器动态频率信号被发送到带通滤波器，其滤除作为轴弹性和转子动力学的函数的本征频率频率。 滤波后的频率信号由整流器整流，使得滤波后的频率信号为正。 整流后的信号然后通过一个低通滤波器，将滤波后的信号转换为直流信号。 然后将DC信号发送到控制器，该控制器确定信号的振幅是否高于预定阈值，这表示压缩机的平衡存在问题。

公开(公告)号：US20140242491A1

公开(公告)日：2014-08-28

申请号：US14269922

申请日：2014-05-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oliver Maier ,  Bernd Peter Elgas ,  Ulrich Dumke ,  Peter Willimowski

IPC: H01M8/04

CPC classification number: H01M8/04686 ,  F04C2240/50 ,  F04C2270/80 ,  F04D27/001 ,  F04D29/662 ,  H01M8/04089 ,  H02H7/09 ,  Y02E60/50

Abstract: A diagnostic system for determining whether a rotor shaft of a compressor is unbalanced. The compressor includes a displacement sensor that measures the displacement of the rotor shaft as it is rotating. The sensor dynamic frequency signal is sent to a bandpass filter that filters out an eigen-frequency frequency that is a function of shaft elasticity and rotor dynamics. The filtered frequency signal is then rectified by a rectifier to make the filtered frequency signal positive. The rectified signal is then passed through a low pass filter that converts the rectified signal to a DC signal. The DC signal is then sent to a controller that determines if the amplitude of the signal is above a predetermined threshold, which indicates a problem with the balance of the compressor.

Abstract translation: 用于确定压缩机的转子轴是否不平衡的诊断​​系统。 压缩机包括位移传感器，其测量转子轴在旋转时的位移。 传感器动态频率信号被发送到带通滤波器，其滤除作为轴弹性和转子动力学的函数的本征频率频率。 滤波后的频率信号由整流器整流，使得滤波后的频率信号为正。 整流后的信号然后通过一个低通滤波器，将滤波后的信号转换为直流信号。 然后将DC信号发送到控制器，该控制器确定信号的振幅是否高于预定阈值，这表示压缩机的平衡存在问题。