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公开(公告)号：US09404540B2
公开(公告)日：2016-08-02
申请号：US14346875
申请日：2012-09-21
Applicant: NTN CORPORATION
Inventor： Toru Takahashi , Kentarou Nishikawa , Wataru Hatakeyama
CPC classification number: F16C41/00 , B60B27/0068 , B60T8/245 , F16C19/186 , F16C19/522 , F16C2326/02 , G01L5/0019 , G01L5/16
Abstract: At least one or more sensor for detecting a load acting on a wheel support bearing apparatus is provided in such bearing device, a signal processor for processing an output signal of those sensors to generate a signal vector and a load calculator for calculating the load, which acts on a vehicle wheel, from the signal vector, are provided. The load calculator has a function of determining the presence or absence of a predetermined state of a vehicle, which may affects a result of calculation of the load, and performing two types of calculation process appropriate to the presence or absence. The presence or absence of the predetermined state of the vehicle, which is determined by the load calculator is, for example, ON/OFF of a brake.
Abstract translation: 用于检测作用在车轮支撑轴承装置上的载荷的至少一个或多个传感器设置在这种轴承装置中，信号处理器用于处理那些传感器的输出信号以产生信号矢量，以及用于计算负载的负载计算器， 提供了从信号矢量作用在车轮上。 负载计算器具有确定车辆的预定状态的存在或不存在的功能，其可能影响负载的计算结果，并且执行适合于存在或不存在的两种类型的计算处理。 由负载计算器确定的车辆的预定状态的存在或不存在例如是制动器的ON / OFF。
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公开(公告)号：US20140212081A1
公开(公告)日：2014-07-31
申请号：US14346875
申请日：2012-09-21
Applicant: NTN CORPORATION
Inventor： Toru Takahashi , Kentarou Nishikawa , Wataru Hatakeyama
CPC classification number: F16C41/00 , B60B27/0068 , B60T8/245 , F16C19/186 , F16C19/522 , F16C2326/02 , G01L5/0019 , G01L5/16
Abstract: At least one or more sensor for detecting a load acting on a wheel support bearing apparatus is provided in such bearing device, a signal processor for processing an output signal of those sensors to generate a signal vector and a load calculator for calculating the load, which acts on a vehicle wheel, from the signal vector, are provided. The load calculator has a function of determining the presence or absence of a predetermined state of a vehicle, which may affects a result of calculation of the load, and performing two types of calculation process appropriate to the presence or absence. The presence or absence of the predetermined state of the vehicle, which is determined by the load calculator is, for example, ON/OFF of a brake.
Abstract translation: 用于检测作用在车轮支撑轴承装置上的载荷的至少一个或多个传感器设置在这种轴承装置中，信号处理器用于处理那些传感器的输出信号以产生信号矢量，以及用于计算负载的负载计算器， 提供了从信号矢量作用在车轮上。 负载计算器具有确定车辆的预定状态的存在或不存在的功能，其可能影响负载的计算结果，并且执行适合于存在或不存在的两种类型的计算处理。 由负载计算器确定的车辆的预定状态的存在或不存在例如是制动器的ON / OFF。
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3.发明授权公开(公告)号：US11441940B2
公开(公告)日：2022-09-13
申请号：US16604952
申请日：2018-04-04
Applicant: NTN CORPORATION
Inventor： Wataru Hatakeyama , Makoto Miyazaki , Takashi Haseba , Yosuke Suzuki
IPC: G01H1/00 , G01M13/028 , G01P7/00 , G01H3/08
Abstract: A data processing device includes a peak detector that detects a peak from a frequency spectrum and a map generator that generates an abnormality map for the frequency spectrum. The abnormality map includes as abnormal components, a frequency of a detected peak of interest and a frequency of a peak that appears together with the peak of interest when the peak of interest is assumed as the peak originating from abnormality. The data processing device includes an abnormal peak extractor that extracts as an abnormal peak, a peak at a frequency that matches with any of the abnormal components included in the abnormality map and a first criterion value calculator that calculates a first criterion value representing occurrence of abnormality corresponding to the abnormality map based on a spectral density of the abnormal peak.
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