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    Programmable logic controller and programming tool for programmable logic controller
    2.
    发明授权
    Programmable logic controller and programming tool for programmable logic controller 有权

    公开(公告)号：US10067492B2

    公开(公告)日：2018-09-04

    申请号：US14664038

    申请日：2015-03-20

    Applicant: JTEKT CORPORATION

    Inventor： Terukazu Senda ,  Kenji Yoshida ,  Satoshi Kato

    IPC: G05B19/05 ,  G05B19/042

    Abstract: A programmable logic controller capable of improving the expandability of a distributed control system and a programming tool for the programmable logic controller are provided. A programmable logic controller (PLC) that constitutes a distributed control system includes: a variable table that includes variable information including identification symbols for identification of a plurality of PLCs and variable names of reference variables, the variable information being set for each of the reference variables; a storage device that has a memory region for storing the reference variables; and an interface circuit that mutually converts communication data for use in communication between the PLC and a different PLC and the reference variables stored in the memory region. The reference variables are variables mutually referenced by the plurality of PLCs.

    PLC COMMUNICATION SYSTEM
    3.
    发明申请
    PLC COMMUNICATION SYSTEM 有权
    PLC通信系统

    公开(公告)号：US20140336784A1

    公开(公告)日：2014-11-13

    申请号：US14243159

    申请日：2014-04-02

    Applicant: Toyota Jidosha Kabushiki Kaisha ,  JTEKT Corporation

    Inventor： Terukazu SENDA ,  Satoshi Kato ,  Toshio Aono ,  Toshiyuki Kamauchi ,  Masanori Ido

    IPC: G05B19/02

    CPC classification number: G05B19/058 ,  G05B19/4185 ,  G05B2219/15026 ,  H04L12/403 ,  H04L41/0677 ,  H04L43/0811 ,  H04L43/10 ,  H04L43/16 ,  H04L2012/445 ,  Y02P90/18

    Abstract: The PLC communication system associated with the invention is characterized in that the system comprises a programmable logic controller (PLC), a plurality of processing devices, at least three communication processing nodes provided at the PLC and at the plurality of processing devices respectively to establish communication of the PLC and each of the processing devices and an interconnecting device and a plurality of communication lines for connecting the communication processing nodes with one another to establish data communication among the communication processing nodes. The PLC detects a state of communication failure and a display device displays an abnormal portion in a communication route based on the number of occurrences of the state of communication failure in respective interconnecting device and plurality of communication lines.

    Abstract translation: 本发明涉及的PLC通信系统的特征在于，该系统包括可编程逻辑控制器（PLC），多个处理装置，分别在PLC和多个处理装置处提供的至少三个通信处理节点，用于建立通信 PLC和每个处理装置以及互连装置和用于将通信处理节点彼此连接的多条通信线路，以在通信处理节点之间建立数据通信。 PLC检测到通信故障的状态，并且显示设备基于各个互连设备和多个通信线路中的通信故障的状态的发生次数在通信路由中显示异常部分。

    Programmable logic controller communication system
    4.
    发明授权
    Programmable logic controller communication system 有权

    公开(公告)号：US09778638B2

    公开(公告)日：2017-10-03

    申请号：US14090564

    申请日：2013-11-26

    Applicant: JTEKT Corporation

    Inventor： Satoshi Kato ,  Yasuteru Yamauchi ,  Terukazu Senda

    IPC: G05B19/02 ,  H04L12/24 ,  H04L12/403 ,  G05B19/05

    CPC classification number: G05B19/02 ,  G05B19/052 ,  G05B2219/1204 ,  H04L12/403 ,  H04L41/0631 ,  H04L41/0677 ,  H04L41/22

    Abstract: A PLC communication system includes a PLC; a plurality of devices; three or more communication processing nodes that are provided respectively in the PLC and the devices to allow the PLC to communicate with each of the devices; and a plurality of communication lines that connect the communication processing nodes to each other to allow data communication. The PLC detects an incommunicable state between two of the communication processing nodes. The PLC communication system further includes a display device, and in a case where there are a plurality of types of incommunicable states detected by the PLC, the display device displays a portion where communication lines constituting the incommunicable states among the plurality of communication lines overlap with each other, as a line failure portion.

    Constant-velocity joint
    5.
    发明授权
    Constant-velocity joint 有权

    公开(公告)号：US10364849B2

    公开(公告)日：2019-07-30

    申请号：US15585232

    申请日：2017-05-03

    Applicant: JTEKT CORPORATION

    Inventor： Yukinobu Nishiyama ,  Tetsuji Kawasumi ,  Satoshi Kato ,  Keishi Kobata ,  Masahito Ikeo ,  Hideki Sugiura

    IPC: F16D3/2233 ,  F16D3/2245 ,  F16D3/223

    Abstract: In a constant-velocity joint, a center locus of a ball rolling on a first outer large-diameter portion has an arc shape having an arc center, and a center locus of the ball rolling on a second outer large-diameter portion has an arc shape having an arc center. Center loci of the ball rolling on an outer extension portion are positioned, throughout their lengths, in a region inducing a tangent line to an opening-side end portion of the center locus of the ball rolling on the second outer large-diameter portion, the region being positioned outward of the tangent line in a radial direction of the outer joint member. An opening-side end portion of the center locus of the ball rolling on the outer extension portion is positioned outward of the tangent line in the radial direction of the outer joint member.

    CONSTANT-VELOCITY JOINT
    6.
    发明申请
    CONSTANT-VELOCITY JOINT 审中-公开

    公开(公告)号：US20170321759A1

    公开(公告)日：2017-11-09

    申请号：US15585232

    申请日：2017-05-03

    Applicant: JTEKT CORPORATION

    Inventor： Yukinobu NISHIYAMA ,  Tetsuji Kawasumi ,  Satoshi Kato ,  Keishi Kobata ,  Masahito Ikeo ,  Hideki Sugiura

    IPC: F16D3/2233 ,  F16D3/2245 ,  F16D3/223

    CPC classification number: F16D3/2233 ,  F16D3/2245 ,  F16D2003/22309 ,  Y10S464/906

    Abstract: In a constant-velocity joint, a center locus of a ball rolling on a first outer large-diameter portion has an arc shape having an arc center, and a center locus of the ball rolling on a second outer large-diameter portion has an arc shape having an arc center. Center loci of the ball rolling on an outer extension portion are positioned; throughout their lengths, in a region inducing a tangent line to an opening-side end portion of the center locus of the ball rolling on the second outer large-diameter portion, the region being positioned outward of the tangent line in a radial direction of the outer joint member. An opening-side end portion of the center locus of the ball rolling on the outer extension portion is positioned outward of the tangent line in the radial direction of the outer joint member.

    Communication system and information generation method for communication network
    7.
    发明授权
    Communication system and information generation method for communication network 有权

    公开(公告)号：US10686624B2

    公开(公告)日：2020-06-16

    申请号：US15344956

    申请日：2016-11-07

    Applicant: JTEKT CORPORATION

    Inventor： Terukazu Senda ,  Satoshi Kato

    IPC: H04L12/417 ,  H04L12/26 ,  H04L12/24

    Abstract: A communication system includes: an information acquisition unit that acquires node information, which indicates the presence or absence of the execution of a reissuing process by communication processing nodes, for a plurality of switching processes in the case where a switching process has been executed once each for all of communication lines; and a system information generation unit that generates system information, which indicates the system of a communication network, on the basis of a plurality of pieces of node information that have been acquired.

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