Noise filter and wire harness
    1.
    发明授权

    公开(公告)号:US11128276B2

    公开(公告)日:2021-09-21

    申请号:US16460390

    申请日:2019-07-02

    Abstract: A noise filter includes a filter circuit including a noise reduction element that reduces a noise component, a conductive first circuit connection member to which a first connection portion of the noise reduction element is electrically connected, and a conductive second circuit connection member to which a second connection portion of the noise reduction element is electrically connected, a first electric connection structure that electrically connects an intermediate connection portion of a core wire of a first electric wire to the first circuit connection member, and a second electric connection structure that electrically connects an intermediate connection portion of a core wire of a second electric wire whose one end is grounded, to the second circuit connection member.

    On-vehicle communication system
    3.
    发明授权

    公开(公告)号:US11456913B2

    公开(公告)日:2022-09-27

    申请号:US17177193

    申请日:2021-02-16

    Abstract: Switching hubs such as relay devices capable of path control are arranged at a plurality of branch positions respectively on a wire harness including a trunk line of a communication line. Each of the relay devices includes a failure detection part, a routing map, and a path control part. The trunk line of the communication line is formed to make it possible to use a plurality of types of paths selectively. When the failure detection part in any relay device detects a failure, an instruction of path change is given to another relay device therefrom. When any relay device receives an instruction of path change from another relay device, the routing maps in the relay device receiving the instruction are switched according to a failure occurrence portion. A VLAN is constructed on an Ethernet communication network, and logical assignment of the VLAN is controlled by a central gateway.

    Communication system
    4.
    发明授权

    公开(公告)号:US11323286B2

    公开(公告)日:2022-05-03

    申请号:US17177188

    申请日:2021-02-16

    Abstract: A plurality of zones is formed in a communication network on the vehicle, and a communication path in a loop form is formed in each zone by zone trunk lines and a backup line. The backup line is connected by a switch only at the time of disconnection so that the loop is not closed. At the time of disconnection detection, an instruction is automatically given to rewrite content of routing maps on zone ECUs and a central gateway. Since each node preferentially selects a communication path that bypasses a disconnection portion from the start of communication by rewriting the content of the routing maps, it is possible to avoid an increase in communication delay. An inter-zone backup line connecting a plurality of zones is provided to enable the use of a new path across the plurality of zones at the time of disconnection.

    Communication system
    5.
    发明授权

    公开(公告)号:US11516047B2

    公开(公告)日:2022-11-29

    申请号:US17177184

    申请日:2021-02-16

    Abstract: A communication path in a loop form is formed by trunk lines and a redundant communication path, which is formed by a switch and a backup line. In order to be applied to a bus-type communication network such as a CAN, the switch is normally off, and the backup line is disconnected from a path in a steady state. A disconnection detection unit is provided at each of joint connectors. When any disconnection detection unit detects disconnection, the switch is closed to enable use of the redundant path. Further, content of a routing map of a central gateway is automatically rewritten to preferentially select the redundant path that is not disconnected, and thus the path is changed.

    Electric connection box
    6.
    发明授权

    公开(公告)号:US10994676B2

    公开(公告)日:2021-05-04

    申请号:US15931527

    申请日:2020-05-13

    Abstract: An electric connection box includes: the housing, or a plurality of communication connectors provided therein; a communication switch circuit, which is provided inside the housing, has a communication relay function and controls a communication path between the plurality of communication connectors; and a common power supply circuit, which is provided inside the housing and capable of supplying common power generated based on the power from the input side power supply line to a plurality of electric circuits including the communication switch circuit.

    COMMUNICATION SYSTEM
    7.
    发明申请

    公开(公告)号:US20210258189A1

    公开(公告)日:2021-08-19

    申请号:US17177188

    申请日:2021-02-16

    Abstract: A plurality of zones is formed in a communication network on the vehicle, and a communication path in a loop form is formed in each zone by zone trunk lines and a backup line. The backup line is connected by a switch only at the time of disconnection so that the loop is not closed. At the time of disconnection detection, an instruction is automatically given to rewrite content of routing maps on zone ECUs and a central gateway. Since each node preferentially selects a communication path that bypasses a disconnection portion from the start of communication by rewriting the content of the routing maps, it is possible to avoid an increase in communication delay. An inter-zone backup line connecting a plurality of zones is provided to enable the use of a new path across the plurality of zones at the time of disconnection.

    COMMUNICATION SYSTEM
    8.
    发明申请

    公开(公告)号:US20210258188A1

    公开(公告)日:2021-08-19

    申请号:US17177184

    申请日:2021-02-16

    Abstract: A communication path in a loop form is formed by trunk lines and a redundant communication path, which is formed by a switch and a backup line. In order to be applied to a bus-type communication network such as a CAN, the switch is normally off, and the backup line is disconnected from a path in a steady state. A disconnection detection unit is provided at each of joint connectors. When any disconnection detection unit detects disconnection, the switch is closed to enable use of the redundant path. Further, content of a routing map of a central gateway is automatically rewritten to preferentially select the redundant path that is not disconnected, and thus the path is changed.

    In-vehicle communication system
    10.
    发明授权

    公开(公告)号:US11323861B2

    公开(公告)日:2022-05-03

    申请号:US16874543

    申请日:2020-05-14

    Abstract: An in-vehicle communication system including independent communication hub devices each incorporating a function of relaying communication and a function of controlling a communication path among a plurality of communication connectors, in which each of the communication hub devices includes an internal power supply unit configured to generate, based on input power supply power supplied from a main power supply on a vehicle side, stabilized power supply power necessary for operation of an internal circuit, and a backup power supply output unit configured to supply the input power supply power or the stabilized power supply power generated by the internal power supply unit to the other communication hub device as backup power, in which a backup power supply line is provided which connects the backup power supply output units of the plurality of communication hub devices.

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