Toyota Jidosha Kabushiki Kaisha

Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Toyota Jidosha Kogyo Kabushiki Kaisha

Toshio Kawamura

Hiroya Ando

Yasuhiro Yamasaki

Masashi Amesara

Shu Ishizuka

Yutaka Ueda

Taichi Matsumura

Yoshifumi Ohmori

Toshio Shimada

Tomomi Kawamura

Takeshi Hagihara

Yasuhiro Yabuuchi

Hirofumi Urayama

Hideki Maeda

Yoshiro Hirata

Yoshiroh Hirata

Tatsuya Izumi

Akihito Iwata

Hideyuki Tanaka

Ichiro Suzuki

Nobuyuki Nakagawa

Darmawan Go

Mitsunori Kobayashi

Toshihisa Adachi

Kunihiko Masaki

Yoshitaka Kaseda

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.

In-vehicle network system, relay device, and method of controlling in-vehicle network system

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 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 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.

In-vehicle network system

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 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.

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.

Information processing system, information processing method, non-transitory storage medium storing program, and information processing device

An in-vehicle network system includes a plurality of first controllers; a plurality of first communication lines, the first communication lines being respectively connected to the first controllers; a connector that connects an external device or a wireless communication device; a connection communication line that is connected to the connector; and a first relay device that relays between the first communication lines and the connection communication line. The first relay device is configured to determine whether a security level in data communication between the first controllers is increased according to a type of the external device or a communication state of the wireless communication device in a state in which the external device or the wireless communication device is connected to the connector, and the first relay device is configured to increase the security level when the first relay device determines that the security level is increased.

Tungsten powder which is a material of high radiation absorptivity is dispersed into unvulcanized fluoro rubber in advance so that the mixture is vulcanized and molded. As the powder of material of high radiation absorptivity, powder having an F.s.s.s. particle size not larger than 50 .mu.m is used. Further, in the case where a mixture of powder having an F.s.s.s. particle size in a range of from 5 .mu.m to 50 .mu.m, and powder having an F.s.s.s. particle size in a range of from 0.5 .mu.m, to 5 .mu.m, is used as the powder of material of high radiation absorptivity, the powder of material of high radiation absorptivity has good tensile strength, good extensibility and more excellent radiation shielding ability, when the weight of the powder having a particle size in a range of from 4 .mu.m to 100 .mu.m is in a range of from 60% by weight to 95% by weight, and the weight of the powder having a particle size smaller than 4 .mu.m is in a range of from 5% by weight to 40% by weight. Both the powder and the vulcanized rubber containing carbon powder have electrical conductivity, so that electromagnetic wave shielding ability is added. In addition, the vulcanized rubber is vulcanized fluoro rubber which is excellent in heat resistance and chemical resistance.

Radiation shielding material and producing method thereof

A tungsten based sintered alloy has excellent corrosion resistance under high temperatures and high humidities, and has good toughness. The alloy can be employed as such without requiring further corrosion protection such as Ni plating, due to its corrosion resistance, and allows for plastic deformation such as caulking, due to its toughness or good elongation. The tough corrosion-resistant tungsten based sintered alloy consists of 80 to 97 percent by weight of tungsten, and a remainder of Ni, Co, and optionally Fe and unavoidable impurities. The alloy most particularly has a Co content of at least 2 and not more than 60 percent by weight, an Fe content of more than 0 and less than 5 percent by weight, and a remainder of Ni in a Ni--Co--Fe binder phase.

Tough and corrosion-resistant tungsten based sintered alloy and method

In a hard top automobile body having a roof, and a rear quarter pillar, and a lower rear side portion, a reinforcing pillar, substantially separate from the rear quarter pillar. The reinforcing pillar is provided at a position shifted toward the front of the automobile from the rear quarter pillar, with its upper and lower ends attached to the side of the roof and the lower rear side portion, respectively. In this manner it divides the rear quarter opening into two, while allowing the rear quarter pillar to be reduced to a thinner structure so as to provide better rear side view for the driver without sacrificing the strength and rigidity of the automobile body.

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Nagakute, Japan

Toshio Kawamura