公开(公告)号：US10668876B2

公开(公告)日：2020-06-02

申请号：US15728943

申请日：2017-10-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroya Ando ,  Shu Ishizuka ,  Taichi Matsumura ,  Masashi Amesara ,  Yutaka Ueda ,  Yoshifumi Ohmori ,  Toshio Kawamura ,  Tomomi Kawamura ,  Toshio Shimada ,  Yoshiroh Hirata

IPC: B60R16/023 ,  H04L29/08 ,  H04L12/40 ,  H04L12/46 ,  H04L12/851 ,  H04L12/911

Abstract: An in-vehicle network system includes a plurality of controllers; a plurality of communication lines connected to the controllers, respectively, a relay device connected to the controllers via the communication lines, and a retention determiner configured to determine whether retention of data occurs in the relay device. The relay device is configured to relay data between the communication lines, and configured to preferentially relay data having a priority equal to or higher than a predetermined priority such that the data reaches the controller that is a transmission destination among the controllers within a first predetermined time when the retention determiner determines that the retention occurs.

公开(公告)号：US11936500B2

公开(公告)日：2024-03-19

申请号：US17136708

申请日：2020-12-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shu Ishizuka ,  Hiroya Ando ,  Taichi Matsumura ,  Masashi Amesara ,  Yutaka Ueda ,  Toshio Kawamura ,  Tomomi Kawamura ,  Yoshifumi Ohmori ,  Toshio Shimada ,  Yoshiro Hirata

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/66 ,  H04L12/40 ,  H04L49/35 ,  H04L67/12

CPC classification number: H04L12/66 ,  H04L12/46 ,  H04L12/4625 ,  H04L2012/40215 ,  H04L2012/40273 ,  H04L49/35 ,  H04L67/12

Abstract: An in-vehicle network system deployed in a vehicle includes a plurality of first nodes configured to perform an operation relevant to a first function in the vehicle, a second node configured to perform an operation relevant to a second function different from the first function in the vehicle; and a relay device configured to relay communication between the first nodes and the second node. The relay device is configured to start relay of communication between the first nodes earlier than the relay of communication between the first node and the second node at a time of startup.

公开(公告)号：US10911264B2

公开(公告)日：2021-02-02

申请号：US15845637

申请日：2017-12-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shu Ishizuka ,  Yoshiro Hirata ,  Hiroya Ando ,  Taichi Matsumura ,  Masashi Amesara ,  Yutaka Ueda ,  Toshio Kawamura ,  Tomomi Kawamura ,  Yoshifumi Ohmori ,  Toshio Shimada

IPC: H04L12/66 ,  H04L12/46 ,  H04L29/08 ,  H04L12/40 ,  H04L12/931

Abstract: An in-vehicle network system deployed in a vehicle includes a plurality of first nodes configured to perform an operation relevant to a first function in the vehicle, a second node configured to perform an operation relevant to a second function different from the first function in the vehicle; and a relay device configured to relay communication between the first nodes and the second node. The relay device is configured to start relay of communication between the first nodes earlier than the relay of communication between the first node and the second node at a time of startup.

公开(公告)号：US11063871B2

公开(公告)日：2021-07-13

申请号：US16425044

申请日：2019-05-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Keino ,  Taichi Matsumura ,  Kotaro Hara ,  Yohsuke Okada

IPC: H04L12/803 ,  H04L12/841 ,  H04L12/40 ,  H04L12/26 ,  H04L12/851

Abstract: A communication apparatus includes an electronic control unit configured to manage transmission timing of predetermined data to the network, transmit the data to the network based on the transmission timing, measure an actual transmission time, determine whether the actual transmission time exceeds a specified transmission time, when the transmitted data is predetermined control object data, when determination is made that the actual transmission time is equal to or less than the specified transmission time, set next transmission timing of the control object data to be the predetermined period, and when the transmitted data is the control object data, when determination is made that the actual transmission time exceeds the specified transmission time, delay next transmission timing of the control object data by a predetermined waiting time with respect to the predetermined period.

公开(公告)号：US10887128B2

公开(公告)日：2021-01-05

申请号：US15785585

申请日：2017-10-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroya Ando ,  Shu Ishizuka ,  Taichi Matsumura ,  Masashi Amesara ,  Yutaka Ueda ,  Yoshifumi Ohmori ,  Toshio Kawamura ,  Tomomi Kawamura ,  Toshio Shimada ,  Yoshiroh Hirata

IPC: H04L12/40 ,  H04L12/24 ,  G07C5/00 ,  G07C5/08 ,  H04L29/08

Abstract: An in-vehicle network system includes a plurality of relay devices that is connected to control devices of a vehicle, and communicates with each other and is configured such that each of a plurality of request devices that transmits a response request to the control device is connected to any one of the relay devices, a storage unit that stores a priority of the request devices, a master setter that sets, as the master, the relay device to which the request device having the highest priority has been connected among the relay devices to which any one of the request devices has been connected, and an arbitrator that performs arbitration to prioritize a response request from the request device having the highest priority when the response requests are transmitted from at least two of the request devices when the relay device in which the arbitrator is included is the master.