Toyota Jidosha Kabushiki Kaisha

Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Yasuhiro Yamasaki

Toshio Kawamura

Takeshi Hagihara

Hirofumi Urayama

Tatsuya Izumi

Hideyuki Tanaka

Yasuhiro Yabuuchi

Hideki Goto

Darmawan Go

Hideki Maeda

Hiroya Ando

Masashi Amesara

Shu Ishizuka

Akihito Iwata

Yusuke Yamamoto

Nobuyuki Nakagawa

Kunihiro Miyauchi

Kenta Ogata

Yoshitaka Kikuchi

Tomohiro Otsu

Daisuke Takata

Yoshitaka Kaseda

Ikuyoshi Otake

Keigo Kawahara

Takashi Yasuda

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 communication control system includes a memory and a processor coupled to the memory. The processor is configured to according to an instruction from an external device, perform processing related to changing a network setting on a communication device, after the processing has been executed, determine whether or not communication of the communication device matches a specific communication condition, and notify an error to the external device in a case in which determination has been made that the communication of the communication device does not match the specific communication condition.

Communication control system and communication control method

A setting device to set a parameter for transmission queues at an Ethernet switch, the setting device including a processor. The processor is configured to assign associations between an attribute associated with a transmission frame and a plurality of the queues having different priorities, set a parameter for a high priority queue having a priority equal to or higher than a threshold based on an adverse condition transmission schedule having transmission timings less desirable than those of a preset transmission schedule, and set a parameter for a low priority queue having a priority of less than the threshold using processing that is different from processing for setting the parameter for the high priority queue.

Setting device, parameter setting method, and storage medium storing program

A switch device installed in a vehicle is provided with: a switch unit configured to relay communication data between a plurality of function units installed in the vehicle; a storage unit configured to hold the communication data to be relayed; and a control unit configured to determine a state of the storage unit, and adjust, for each of applications, a throughput of the communication data to be transmitted from the function units, based on a result of the determination.

Switch device, communication control method, and communication control program

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.

Electronic control unit

An in-vehicle network system includes first device and second device configured to send or receive to or from each other, and an intermediate node connected between the first device and the second device, the intermediate node being configured to output buffered messages in a sequence determined by a relative priority scheme. The first device includes a control unit configured to measure a communication delay for each of a plurality of different priority messages, set a delay representative value less than a maximum value of the plurality of communication delays, and adjust time that a time management unit manages, based on time that the first device manages, time that the second device manages, and the delay representative value.

In-vehicle network system

An electronic control unit that monitors a subject electronic control unit that is different from the electronic control unit and is connected to a network includes a transmitting unit that transmits a monitoring packet to the subject electronic control unit, an estimating unit that estimates a state of the subject electronic control unit, based on a reply packet transmitted from the subject electronic control unit in response to the monitoring packet, and a monitoring unit that monitors the subject electronic control unit, based on a monitoring policy selected according to a combination of the state of the subject electronic control unit estimated by the estimating unit, and the state of the electronic control unit.

Electronic control unit, monitoring method, and non-transitory computer readable medium storing program for monitoring a subject electronic control unit connected to a network

This on-vehicle communication device includes: a storage unit configured to store correspondence information indicating a correspondence relationship between an address and a port number; and a communication unit configured to perform, by using the correspondence information, filtering of a packet having been received. A target port number which is a port number of a target instrument is registered in advance in the correspondence information. In the filtering, the communication unit selectively allows a packet that includes the target port number, to pass. The communication unit performs an address registration process of acquiring an address from the packet that includes the target port number and registering, into the correspondence information, the acquired address in association with the target port number. In the filtering after the address registration process, the communication unit selectively allows a packet that includes the target port number and the corresponding address, to pass.

On-vehicle communication device, communication control method, and communication control program

An in-vehicle apparatus includes a processor configured to obtain first transmission data with a first communication address as a destination and second transmission data with a second communication address as a destination from one or more applications, transmit the first transmission data to a relay unit at a first timing among a plurality of timings set at an interval of a predetermined cycle corresponding to a buffer size of the relay unit to which the in-vehicle apparatus is connected, and transmit the second transmission data to the relay unit at a second timing among the plurality of timings, the second timing being different from the first timing.

In-vehicle apparatus, information processing unit, information processing method, and non-transitory computer readable storage medium that stores program

An electronic control unit mounted on a vehicle includes a processor configured to: detect a connection request from an outside device; determine, in response to the connection request, whether or not a start condition for starting a connection authentication process is satisfied, the connection authentication process being a process for determining propriety of the connection request from the outside device; control a communication state between the outside device and the electronic control unit such that the communication state becomes a linkup state when the start condition is satisfied; and start the connection authentication process when the communication state is the linkup state.

Electronic control unit and method for connection authentication

An information processing system includes: a first information processing device including a transmission unit, the transmission unit being configured to transmit a dummy segment including dummy data, after sequentially transmitting transmission segments into which transmission data is divided; and a second information processing device configured to communicate with the first information processing device using a transmission control protocol, the second information processing device including a removal unit configured to remove the dummy segment and to set data including the transmission segments as the transmission data when the transmission segments and the dummy segment are received.

Growing community of inventors

Okazaki, Japan

Yasuhiro Yamasaki