Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Toyota Jidosha Kabushiki Kaisha

Honda Motor Co., Ltd.

Sumitomo Electric Industires, Ltd.

Takeshi Hagihara

Yasuhiro Yabuuchi

Hirofumi Urayama

Tatsuya Izumi

Akihito Iwata

Darmawan Go

Nobuyuki Nakagawa

Yusuke Yamamoto

Hideyuki Tanaka

Akihiro Ogawa

Yousuke Takata

Hideki Maeda

Makoto Mashita

Yukihiro Miyashita

Yutaka Komatsu

Yuta Ochiai

Ryou Okada

Kazuhiko Nii

Hiroya Andoh

Yosuke Shimizu

Takehiro Kawauchi

Tadashi Matsumoto

Yuanjun Xian

Ryuichi Kamaga

Ichiro Kanda

Hideki Goto

Atsushi Iwai

Koichi Takayama

Yojiro Suyama

Masakatsu Moriguchi

Hiroya Ando

Masashi Amesara

Yasuhiro Yamasaki

Shu Ishizuka

Nobuyuki Kobayashi

Junji Yano

Hisashi Furukawa

Yoshitaka Kikuchi

Tomohiro Otsu

Toshio Kawamura

Yoshikazu Isoyama

Ryo Okada

Kenta Ogata

Ryo Yamane

Hayato Shikata

Akira Miyajo

Yoshihisa Nagamura

Ryo Tanaka

Yuichi Kodama

Kengo Hayashizaki

Yuya Tanaka

Koji Saotome

Shuta Fukuda

Kentaro Ashibe

Hiroshi Nagao

Yousuke Takaka

Yashuhiro Yabuuchi

Daiki Nakayama

Takashi Yasuda

A communication device (relay device) is attached to a vehicle power supply apparatus, and receives a differential signal represented by a voltage difference between two electrical signals respectively propagating through two conductive wires included in a communication line. The signal processing circuit removes noise from the two electrical signals using an electric potential of a first conductor as a reference electric potential. The signal conversion unit converts the differential signal represented by the voltage difference between the two electrical signals from which noise has been removed, into a voltage signal represented by a voltage whose reference electric potential is an electric potential of a second conductor. The power supply circuit of the power supply apparatus applies a voltage whose reference electric potential is the electric potential of the second conductor to the signal conversion unit via the apparatus connector connected to the power supply apparatus.

Communication device and communication apparatus

A communication device includes: a data transmission unit that is connected to a communication bus to which a plurality of communication equipments are connected and transmits data; and a processing unit that performs processing. The order in which the plurality of pieces of communication equipment and the data transmission unit transmit data through the communication bus is determined in advance. A start signal indicating the start of data transmission is repeatedly transmitted through the communication bus. The data transmission unit transmits data according to the order when the start signal is transmitted. The processing unit changes the transmission interval of the start signal.

Communication device, communication system, and communication method

A network of a new configuration is flexibly constructed while maintaining a stable operation in the network. A management device includes: a detection unit that detects addition of a function unit to a network including one or a plurality of on-vehicle function units; an acquisition unit that acquires function unit information of a new function unit that is the function unit the addition of which has been detected by the detection unit and function unit information of each on-vehicle function unit, each piece of function unit information including information regarding network configuration of a layer lower than an application layer; and a generation unit that, based on the pieces of function unit information acquired by the acquisition unit, generates configuration information of a new network that is the network further including the new function unit.

Management device, vehicle communication system, vehicle, vehicle communication management method, and vehicle communication management program

A vehicle-mounted relay device for relaying Ethernet frames includes a plurality of PHY units corresponding to a plurality of vehicle-mounted devices, a switch unit to which the plurality of PHY units are connected, and a control unit configured to monitor operating states of the plurality of PHY units. The plurality of PHY units include a predetermined PHY unit whose operating state switches between a sleep state and an active state in response to reception of a predetermined control signal that differs from the Ethernet frames. When an Ethernet frame to be transmitted from the predetermined PHY unit has been detected during a period where the predetermined PHY unit is in the sleep state, the control unit executes switching control to switch the predetermined PHY unit to the active state.

Relay device, relay system, relaying method, and computer program

A management device includes: a specification information acquisition unit configured to acquire specification information indicating a specification of a configuration of an in-vehicle network; a state information acquisition unit configured to acquire state information indicating an assembly state, in the in-vehicle network, of a plurality of in-vehicle devices forming the in-vehicle network; and a comparison unit configured to compare the specification indicated by the specification information acquired by the specification information acquisition unit with the assembly state indicated by the state information acquired by the state information acquisition unit.

Management device, inspection method, and inspection program

A first ECU and a plurality of second ECUs are connected to a communication bus. The first ECU repeatedly transmits a beacon signal through the communication bus. Each of the first ECU and the plurality of second ECUs transmits data according to an order set in advance when the beacon signal is transmitted. The first ECU or the second ECU transmits dummy data whose transmission destination is different from the remaining ECUs when there is no transmission data to be transmitted to one of the remaining ECUs other than itself.

A relay device mounted to a vehicle includes a plurality of function units. The relay device includes: an authentication processing unit configured to acquire authentication information of a function unit from an external device outside the vehicle, and perform an authentication process regarding the function unit by using the acquired authentication information; and a relay processing unit configured to, on the basis of a result of the authentication process performed by the authentication processing unit, relay information between the function unit and another function unit. When a validity time limit of the authentication information has expired, the authentication processing unit acquires, from the external device, the authentication information that is new.

Relay device and vehicle communication method

A network having a new configuration is flexibly constructed through a simple process while ensuring security in the network. A setting device includes: an acquisition unit configured to acquire an authentication result regarding a new function unit serving as a function unit newly added to an in-vehicle network including one or a plurality of function units; and a setting unit configured to, when the authentication result acquired by the acquisition unit is affirmative, perform a setting process for allowing the new function unit and an existing function unit serving as a function unit included in the in-vehicle network before the new function unit is added thereto, to perform communication via a plurality of relay devices capable of relaying information between the function units, the setting process being regarding at least one of the relay devices, the existing function unit, and the new function unit.

Setting device, communication system, and vehicle communication management method

An information of a network to which a new function unit has been added is easily acquired. A relay device installed in a vehicle includes: a detection unit configured to detect a new function unit being a function unit that is newly added to a network including an existing function unit being one or a plurality of function units; a relay unit configured to relay a frame between the function units; and an acquisition unit configured to acquire, from the frame, relayed by the relay unit, between the new function unit detected by the detection unit and the existing function unit, function unit information that includes information regarding a network configuration of a layer of a lower order than an application layer, the function unit information being of at least one of the new function unit and the existing function unit.

Relay device, vehicle communication system, vehicle, communication method, and communication program

An in-vehicle device is mounted to a vehicle and includes: an acquisition unit configured to acquire state information indicating a state of the vehicle; a plurality of physical resources; and an allocation unit configured to change, in accordance with the state indicated by the state information acquired by the acquisition unit, allocation of the physical resources to be used in a target process being one or a plurality of types of processes that should be performed by the in-vehicle device.

In-vehicle device, vehicle management system, resource management method, and resource management program for allocation of computing recourses based on a usage state

In a system including a plurality of in-vehicle networks, information regarding the network configuration of function units connected to different types of transmission paths can be easily used. A relay device includes: an acquisition unit configured to acquire second function unit information of the function unit connected to the second transmission path, the second function unit information being function unit information that includes information regarding a network configuration of a layer of a lower order than an application layer; and a conversion unit configured to perform a conversion process of converting the second function unit information acquired by the acquisition unit into information that is able to be registered into a database of one or a plurality of pieces of first function unit information being function unit information of one or a plurality of the function units each connected to a corresponding first transmission path.

Relay device, vehicle, communication method, and communication program

A communicator (relay) receives a differential signal that is a voltage difference between two electrical signals that propagate through two respective conducting wires. The communicator removes noise from the two electrical signals using a first conductor as a reference potential. The communicator converts the differential signal that is the voltage difference between the two electrical signals with the noise removed into a voltage signal that is a voltage with the reference potential corresponding to a potential of a second conductor. The first conductor and the second conductor are respectively disposed on a first substrate and a second substrate. The first substrate and the second substrate are connected via a substrate connector with flexibility.

Communicator and communication device

The in-vehicle management device includes: a detection unit configured to detect the presence of a target device that is an in-vehicle device that does not support a predetermined message among in-vehicle devices included in an in-vehicle network; and a control unit configured to perform control for causing the target device detected by the detection unit to transition to a sleep state when a state where the predetermined message from the in-vehicle devices does not arrive at the in-vehicle management device has continued for a predetermined period.

In-vehicle management device and management method

Provided is a relay device including: a relay unit configured to perform a relay process for a frame transmitted and received between a plurality of function units; and a relay management unit. The relay unit receives, from a function unit, a target frame. When a content of the target frame satisfies a predetermined condition, the relay management unit stores, in the target frame, position information which is information regarding a position, in the in-vehicle network, of a function unit as a request source of a service related to the target frame or a function unit as a request destination of the service related to the target frame, and outputs the target frame having the position information stored therein, to the relay unit. The relay unit transmits the target frame received from the relay management unit, to a function unit which is a destination of the target frame.

Relay device, in-vehicle communication system, vehicle, and in-vehicle communication method

Provided is a relay device including: a relay unit configured to perform a relay process for a frame transmitted and received between the function units; and a relay management unit. The relay unit receives, from a function unit, a target frame which is transmitted and received according to a predetermined communication protocol and includes information with which a request source of a service is identifiable and information with which a content of the requested service is identifiable, duplicates target data which is at least a part of the received target frame, outputs the duplicated target data to the relay management unit, and relays the received target frame to another function unit. The relay management unit performs determination regarding setting change in the relay process of the relay unit, on the basis of the target data received from the relay unit.

Relay device, in-vehicle communication system, in-vehicle communication method, and storage medium

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Yokkaichi, Japan

Takeshi Hagihara