公开(公告)号：US20150260590A1

公开(公告)日：2015-09-17

申请号：US14723891

申请日：2015-05-28

Applicant: NTN CORPORATION

Inventor： Wataru HATAKEYAMA ,  Toru Takahashi ,  Kentarou Nishikawa

IPC: G01L5/00 ,  G01M17/00 ,  B60B27/00

CPC classification number: G01L5/0019 ,  B60B27/0005 ,  B60B27/0068 ,  F16C19/186 ,  F16C19/522 ,  F16C19/527 ,  F16C41/00 ,  F16C2326/02 ,  G01L5/0023 ,  G01M13/04 ,  G01M17/00

Abstract: A sensor-equipped wheel support bearing assembly capable of estimating an accurate load value without depending on the frequency of fluctuation that occurs in an input load, is provided. A vehicle-wheel bearing (100) is provided with a plurality of sensors (20) for detecting a load applied thereto. The vehicle-wheel bearing (100) is provided with a signal processor (31) for generating signal vectors from output signals of the sensors, a load calculation processor (32) for calculating a load acting on a wheel, based on the signal vectors, and an input load fluctuation detector (33) for detecting a fluctuation component of the input load which is included in the output signals of the sensors (20). The load calculation processor (32) calculates the load by applying a load calculation scheme that shifts in accordance with the fluctuation component detected by the input load fluctuation detector (33).

Abstract translation: 提供了一种能够在不依赖于在输入负载中发生的波动的频率的情况下估计精确的负载值的传感器配备的车轮支撑轴承组件。 车轮轴承（100）设置有用于检测施加到其上的负载的多个传感器（20）。 车轮轴承（100）设置有用于从传感器的输出信号生成信号矢量的信号处理器（31），用于基于信号矢量计算作用在车轮上的负载的负载计算处理器（32） 以及用于检测包括在传感器（20）的输出信号中的输入负载的波动分量的输入负载波动检测器（33）。 负载计算处理器（32）通过应用根据由输入负载变动检测器（33）检测到的变动分量而偏移的负载计算方案来计算负载。

公开(公告)号：US20200158562A1

公开(公告)日：2020-05-21

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

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.

公开(公告)号：US20150267742A1

公开(公告)日：2015-09-24

申请号：US14729897

申请日：2015-06-03

Applicant: NTN CORPORATION

Inventor： Wataru HATAKEYAMA ,  Toru TAKAHASHI ,  Kentarou NISHIKAWA

IPC: F16C19/52 ,  G01L5/00 ,  B60B27/00

CPC classification number: F16C19/522 ,  B60B27/0005 ,  B60B27/0068 ,  F16C19/186 ,  F16C2326/02 ,  G01L5/0009 ,  G01L5/20 ,  G01M13/04

Abstract: A sensor-equipped wheel support bearing assembly is provided which performs high-accuracy load estimation without providing with another sensor, even in a state where a ground contact load on a wheel supported by the bearing is very low as compared to other wheels. The assembly includes: a plurality of sensor units (20) detecting a load on a wheel support bearing segment (100); sensor signal calculator (31) processing sensor signals (S) from the units; and load calculation processor (32) calculating a load on a road surface contact point on a wheel, based on the processed information. The processor (32) determines whether a target wheel is in a predetermined low load state, based on information of a detected load on a wheel other than the target wheel; and switches a load calculation scheme in accordance with a result of the determination to calculate a load on the wheel.

Abstract translation: 提供了一种传感器配置的车轮支撑轴承组件，即使在与其他车轮相比，由轴承支撑的车轮上的接地接触载荷非常低的状态下，也不会提供另一传感器，其执行高精度负载估计。 组件包括：多个传感器单元（20），用于检测车轮支撑轴承段（100）上的负载; 传感器信号计算器（31）处理来自该单元的传感器信号（S） 和负载计算处理器（32），基于所处理的信息计算车轮上的路面接触点的负荷。 基于在目标车轮以外的车轮上检测到的负载的信息，处理器（32）确定目标车轮是否处于预定的低负载状态; 并且根据确定的结果切换负载计算方案以计算车轮上的负载。