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    Relay device
    6.
    发明授权
    Relay device 有权

    公开(公告)号：US11349685B2

    公开(公告)日：2022-05-31

    申请号：US16575487

    申请日：2019-09-19

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Isao Watanabe ,  Masahide Ozaki ,  Nobuyuki Nakagawa

    IPC: H04L12/40 ,  H04W4/40 ,  H04L9/40 ,  H04L67/12

    Abstract: A relay device connected to an in-vehicle network includes a first determination unit; a second determination unit; and a relay processing unit. The first determination unit is configured to send out a high priority transfer message through a first path that runs from the first determination unit to the relay processing unit without passing through the second determination unit. The relay processing unit is configured to output the high priority transfer message, acquired through the first path, to the second determination unit and the in-vehicle device. The first determination unit is configured to send out a normal priority transfer message to the relay processing unit through a second path that runs from the first determination unit to the relay processing unit via the second determination unit. The relay processing unit is configured to output the normal priority transfer message, acquired through the second path, to the in-vehicle device.

    Relay device and external device
    7.
    发明授权
    Relay device and external device 有权

    公开(公告)号：US11340888B2

    公开(公告)日：2022-05-24

    申请号：US17023873

    申请日：2020-09-17

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Atsushi Iwata ,  Akiteru Takae ,  Nobuyuki Nakagawa

    IPC: G06F8/65 ,  B60R16/023 ,  G06F13/40

    Abstract: The relay device transmits data for writing or updating a program received from the external communication bus to an in-vehicle communication bus, which is the transfer destination, in order of reception of the data. A storage area for temporary storage can be smaller and costs can be reduced, as compared with a case where the data is stored until all data is prepared for each of in-vehicle devices. Further, the required time can be reduced as compared with a case where all data is received for each of the in-vehicle devices and then transmitted to the in-vehicle devices. The external device transmits data addressed to the in-vehicle devices to the relay device in parallel.

    Electronic control unit
    10.
    发明授权
    Electronic control unit 有权

    公开(公告)号：US11201803B2

    公开(公告)日：2021-12-14

    申请号：US16238356

    申请日：2019-01-02

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yasuhiro Yamasaki ,  Toshio Kawamura ,  Nobuyuki Nakagawa ,  Yoshitaka Kaseda

    IPC: H04L12/26 ,  G06F9/30 ,  G05B19/04 ,  H04W72/12 ,  H04L12/70

    Abstract: An object of the present invention is to avoid the situation where data to be transmitted have to be discarded, even when a network to which the data is to be transmitted is unavailable. The electronic control unit has: a determination part that executes a first determination process for determining whether a network to which data is to be transmitted is available or not; and a transmission part that executes a first transmission process for transmitting the data to the network when it is determined that the network is available, and executes a storage process for storing the data in a storage medium when it is determined that the network is unavailable. The electronic control unit executes the same processes for another network as well.

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