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公开(公告)号：US20150243427A1
公开(公告)日：2015-08-27
申请号：US14421096
申请日：2013-08-06
Applicant: NTN CORPORATION
Inventor： Toru Takahashi , Shintarou Ueno
IPC: H01F13/00
CPC classification number: H01F13/003 , G01D5/2451
Abstract: In a magnetization device, while an annular magnetic body including plural rows of annular un-magnetized magnetic encoder tracks which are arranged adjacent to each other and integrated therewith is rotated, magnetization is performed, thereby providing a magnetic encoder. The magnetization device includes: a magnetizing yoke including a pair of opposed end portions opposed to each other across a magnetic gap; an exciting coil wound on the magnetizing yoke; a magnetization power source supplying a magnetizing current to the exciting coil to pass magnetic flux between the opposed end portions; and a magnetic shield which is provided to the magnetizing yoke and shields flow of the magnetic flux to the rows of magnetic encoder tracks other than a magnetization target.
Abstract translation: 在磁化装置中，虽然包括排列成彼此相邻并与之成一体的多排环形非磁化磁编码器轨道的环形磁体被旋转，但是磁化被执行，从而提供磁编码器。 磁化装置包括：磁化轭，其包括跨越磁隙彼此相对的一对相对端部; 缠绕在磁轭上的励磁线圈; 向励磁线圈供给磁化电流以在相对的端部之间传递磁通的磁化电源; 以及磁屏蔽，其被提供给磁化轭，并且将磁通的流动屏蔽到除磁化目标之外的磁性编码器轨道的行。
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公开(公告)号：US20140300175A1
公开(公告)日：2014-10-09
申请号：US14354327
申请日：2012-10-24
Applicant: NTN CORPORATION
Inventor： Toru Takahashi
IPC: B60K7/00
CPC classification number: B60K7/0007 , B60B27/00 , B60B27/0005 , B60B27/0031 , B60B27/0073 , B60G3/20 , B60G2200/144 , B60G2204/30 , B60G2300/50 , B60K17/043 , B60K2007/0038 , B60K2007/0092 , B60L2220/44 , G01L5/0009
Abstract: An in-wheel motor drive assembly (11) includes a motor unit that drivingly rotates a motor-side rotating member, a speed reduction unit that reduces the rotational speed of the motor-side rotating member and transmits the reduced rotation to a wheel-side rotating member, a wheel hub (26) that is fixedly coupled to the wheel-side rotating member, a wheel hub bearing that rotatably supports the wheel hub (26), a casing (12) that covers the motor unit, the speed reduction unit, and the wheel hub bearing, a plurality of sensors (43) that are mounted on the casing (12) and capable of detecting strain generated in the casing (12), and a signal processor (46) that calculates load imposed on a wheel on the basis of strain signals output from the sensors (43).
Abstract translation: 一种轮内电动机驱动组件（11）具有使马达侧旋转部件驱动旋转的马达单元，能够减小马达侧旋转部件的旋转速度的减速单元，将该减速旋转传递至车轮侧 旋转构件，固定地联接到车轮侧旋转构件的轮毂（26），可旋转地支撑轮毂（26）的轮毂轴承，覆盖电动机单元的壳体（12），减速单元 和所述轮毂轴承，安装在所述壳体（12）上并且能够检测在所述壳体（12）中产生的应变的多个传感器（43）以及计算施加在车轮（12）上的负载的信号处理器（46） 基于从传感器（43）输出的应变信号。
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公开(公告)号：US11460005B2
公开(公告)日：2022-10-04
申请号：US16085878
申请日：2017-03-16
Applicant: NTN CORPORATION
Inventor： Takashi Haseba , Yosuke Suzuki , Toru Takahashi
IPC: F03D17/00 , G01M99/00 , G01M13/045 , F03D80/70 , G01H1/00
Abstract: A condition monitoring system includes a vibration sensor for measuring a vibration waveform of a bearing in a wind turbine generation apparatus and a data processor for diagnosing abnormality of the bearing. In the data processor, an evaluation value computing unit time-sequentially computes an evaluation value that characterizes an effective value of vibration waveform data output from the vibration sensor within a certain time. A diagnosis unit diagnoses abnormality of the bearing based on transition of temporal change of the evaluation value. The evaluation value computing unit computes the minimum value of the effective values of vibration waveform data within a certain time, as the evaluation value.
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公开(公告)号：US10895243B2
公开(公告)日：2021-01-19
申请号：US16328163
申请日：2017-08-02
Applicant: NTN CORPORATION
Inventor： Toru Takahashi
Abstract: A condition monitoring apparatus which monitors a condition of equipment including a rotor includes a storage and a calculator. The storage stores a plurality of results obtained from a plurality of divided data strings, respectively, resulting from division of a data string obtained by sampling at a regular time interval of signals from sensors provided in the equipment. The calculator estimates a plurality of rotation speeds corresponding to the plurality of divided data strings from the plurality of results accumulated in the storage, respectively, corrects the plurality of divided data strings based on the plurality of rotation speeds, respectively, and generates a corrected data string by combining the plurality of corrected divided data strings. A condition monitoring apparatus capable of accurately analyzing data obtained from the sensors while increase in cost is suppressed and influence by variation in rotation is lessened is thus provided.
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公开(公告)号：US10830637B2
公开(公告)日：2020-11-10
申请号：US15746740
申请日：2016-06-27
Applicant: NTN CORPORATION
Inventor： Hiroshi Ikeda , Toru Takahashi
Abstract: An abnormality diagnosis device, which is capable of detecting that a vibration sensor is detached from a measurement object, includes a vibration sensor and a control device. The vibration sensor is attached to a measurement object, and measures vibration of the measurement object. The control device determines whether or not the vibration sensor is detached from the measurement object, based on data received from the vibration sensor. The control device calculates a first partial overall value in a first frequency band. The control device calculates a second partial overall value in a second frequency band which is higher than the first frequency band. The control device calculates an index value having a correlation with a ratio between the first partial overall value and the second partial overall value. The control device determines whether or not the vibration sensor is detached from the measurement object, based on the index value.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20130221952A1
公开(公告)日：2013-08-29
申请号：US13859198
申请日：2013-04-09
Applicant: NTN Corporation
Inventor： Takayoshi Ozaki , Tomomi Ishikawa , Toru Takahashi
CPC classification number: G01R1/04 , F16C41/007 , G01B7/30 , G01R33/0005 , G01R33/0047 , G01R33/0052 , G01R33/07 , Y10T29/49002
Abstract: A sensor assembly is sandwiched together with a rubber material mixed with a vulcanizing agent in a mold assembly including an upper mold and a lower mold. The upper and lower molds, while completely sandwiching the sensor assembly, are heated for a predetermined length of time, and a pressure is then applied to the sensor assembly to complete a compressive molding.
Abstract translation: 传感器组件与包含上模和下模的模具组件中的与硫化剂混合的橡胶材料夹在一起。 上模和下模同时完全夹住传感器组件，被加热预定的时间长度，然后将压力施加到传感器组件以完成压缩模制。
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公开(公告)号：US10112444B2
公开(公告)日：2018-10-30
申请号：US15151000
申请日：2016-05-10
Applicant: NTN CORPORATION
Inventor： Toru Takahashi , Kentaro Nishikawa , Nobuo Masaki , Yasumichi Wakao
Abstract: A wear amount detection device to detect that a tire is in a worn state, during running, without a special sensor. The device includes a rotation sensor detecting rotation of a wheel to measure a speed of an automobile; a signal processing extracting rotation speed fluctuations synchronized with rotation, from a rotation signal detected by the rotation sensor, and obtain a rotation speed fluctuation pattern synchronized with rotation, from rotation speed fluctuations over a plurality of rotations; and a wear state determination configured to obtain, from the obtained pattern, a value of a component induced by a characteristic embodied in a tire of the wheel, the value varying in accordance with a wear state of the tire, to estimate a wear state of the tire, and to output the state.
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公开(公告)号：US09976874B2
公开(公告)日：2018-05-22
申请号：US14904223
申请日：2014-07-02
Applicant: NTN CORPORATION
Inventor： Toru Takahashi , Tatsuo Nakajima , Hiroyuki Hakamata , Ikuo Uemoto , Shinji Miyazaki , Takuji Harano , Takayuki Oda
CPC classification number: G01D5/14 , G01D5/24438 , G01D5/2452 , G01D5/246
Abstract: A magnetic encoder device (3) of the present invention includes a base portion (33) having a mounting surface (33b) for mounting to a rotary shaft (2), a cored bar (35) fitted and fixed over the base portion (33), and a double-row magnetic encoder track (30) formed on the cored bar (35). Through movement of each of magnetic poles of the magnetic encoder track (30) over a region opposed to a magnetic sensor (4), an angle of the rotating rotary shaft is detected. The base portion (33) is formed of a sintered metal, and the mounting surface (33b) is subjected to sizing.
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公开(公告)号：US09691534B2
公开(公告)日：2017-06-27
申请号：US14421096
申请日：2013-08-06
Applicant: NTN CORPORATION
Inventor： Toru Takahashi , Shintarou Ueno
CPC classification number: H01F13/003 , G01D5/2451
Abstract: In a magnetization device, while an annular magnetic body including plural rows of annular un-magnetized magnetic encoder tracks which are arranged adjacent to each other and integrated therewith is rotated, magnetization is performed, thereby providing a magnetic encoder. The magnetization device includes: a magnetizing yoke including a pair of opposed end portions opposed to each other across a magnetic gap; an exciting coil wound on the magnetizing yoke; a magnetization power source supplying a magnetizing current to the exciting coil to pass magnetic flux between the opposed end portions; and a magnetic shield which is provided to the magnetizing yoke and shields flow of the magnetic flux to the rows of magnetic encoder tracks other than a magnetization target.
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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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