Sumitomo Electric Industries, Limited

Autonetworks Technologies, Limited

Sumitomo Wiring Systems, Limited

Toyota Jidosha Kabushiki Kaisha

Sumitomo Wiring Systensm Ltd.

Yasuhiro Yabuuchi

Takeshi Hagihara

Hirofumi Urayama

Akihito Iwata

Akihiro Ogawa

Darmawan Go

Hideki Maeda

Tatsuya Izumi

Hideyuki Tanaka

Koichi Takayama

Tadashi Matsumoto

Yusuke Yamamoto

Takehiro Kawauchi

Junji Yano

Hiroya Ando

Toshio Kawamura

Yasuhiro Yamasaki

Makoto Mashita

Yuanjun Xian

Hayato Shikata

Ryuichi Kamaga

Nobuyuki Nakagawa

Yoshihisa Nagamura

Satoshi Horihata

Yosuke Shimizu

Shinichi Ishiko

Yojiro Suyama

Masahiro Morikura

Toshiya Hisada

Ichiro Kanda

Yuichi Kodama

Yuya Tanaka

Kenta Ogata

Daisuke Umehara

Tetsuo Morita

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 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

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

This on-vehicle communication system is an on-vehicle communication system including one or a plurality of switch devices each configured to relay data between a plurality of function units mounted to a vehicle. The on-vehicle communication system includes: a detection unit configured to detect an abnormality regarding a function unit; and a change unit configured to, when an abnormality has been detected by the detection unit, perform a protocol change process of causing the function unit for which the abnormality has been detected, to change a protocol that is used.

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

In a relay device, a control unit detects simultaneous transmission of a plurality of data through a first communication bus. When the number of times of detection of the simultaneous transmission within a predetermined time by the control unit is less than the predetermined number of times, a CAN communication unit starts transmission of data through the first communication bus. When the number of times of detection of the simultaneous transmission within the predetermined time by the control unit is equal to or greater than the predetermined number of times, an Ethernet communication unit transmits data through a first communication line.

Communication device, transmission method, and computer program

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 a new function unit as a function unit to be newly added to a network including one or a plurality of on-vehicle function units; a generation unit that acquires function unit information of the new function unit detected by the detection unit and function unit information of the on-vehicle function unit, and generates, based on the respective pieces of function unit information, configuration information of a new network that is the network in which the new function unit is further included; and an acquisition unit that acquires, from a database in a storage device, feasibility information indicating feasibility of the new network and corresponding to the configuration information generated by the generation unit.

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

An on-vehicle device is mounted on a vehicle, and includes: a processing unit; a determination unit configured to determine whether or not the vehicle is in a predetermined stop state; and a secure area that is accessible from the processing unit when the processing unit has output predetermined information. The secure area has, stored therein, control information that allows an external device to control the on-vehicle device. When the determination unit has made a positive determination, the processing unit accesses the secure area and performs an acquisition process of acquiring the control information from the secure area.

On-vehicle device, management method, and management program

A switch device for relaying data in an on-vehicle network, being equipped with a switch section and a processing section for performing the relay processing via the switch section, wherein, in the case that a plurality of frames to be subjected to the relay processing is present in the processing section, the processing section performs adjustment processing so that the output rates of the respective frames to the switch section in the case that the transmission source addresses of the respective frames are different are made smaller than the output rate in the case that the transmission source addresses of the respective frames are the same.

Switch device, communication control method and recording medium

A switch device for relaying flow data in an in-vehicle network, being equipped with an acquiring section for acquiring correspondence information indicating at least a correspondence relationship among a transmission destination IP address, a transmission source IP address, transmission destination port information, transmission source port information and a transmission destination MAC address and a relay section for acquiring the transmission destination MAC address from the correspondence information on the basis of the transmission destination IP address, the transmission source IP address, the transmission destination port information and the transmission source port information included in a frame that is received by the switch device and constitutes the flow data and for performing transmission processing to transmit the frame including the acquired transmission destination MAC address.

Switch device and communication control method

An on-vehicle communication system includes: a plurality of function units; and one or a plurality of switch devices, each switch device being configured to perform a relay process of relaying communication data between the function units. When unauthorized communication by a function unit has been detected, the switch device performs a validation process of validating a function unit other than an unauthorized-communication function unit that is the function unit for which the unauthorized communication has been detected.

On-board communication system, switching device, verification method, and verification program

A switch device includes: a switch unit configured to relay an Ethernet frame between a plurality of function units installed in a vehicle; a monitoring unit configured to monitor predetermined data in the Ethernet frame; and a specification unit configured to specify a protocol being used by a target function unit which is a function unit serving as a transmission source of the Ethernet frame, based on a monitoring result of the monitoring unit. The monitoring unit performs an operation monitoring process of selectively monitoring an operation of the target function unit according to the target protocol that is the protocol specified by the specification unit.

Switch device, monitoring method and monitoring program

This switch device includes: a relay unit configured to perform a first relay process of relaying data between function units installed in a vehicle and belonging to different VLANs; a calculation unit configured to calculate time correction information on the basis of a transmission time of data from a first function unit serving as the function unit to the switch device, a reception time in the switch device of the data transmitted from the first function unit, a transmission time of data from a second function unit serving as the function unit to the switch device, and a reception time in the switch device of the data transmitted from the second function unit; and a notification unit configured to notify the second function unit of the time correction information calculated by the calculation unit.

Switch device, vehicle-mounted communication device, vehicle-mounted communication system, time correction method, and time correction program

An authentication control device includes: an acquisition unit configured to acquire predetermined identification information regarding an on-vehicle device to be newly added to an on-vehicle network; and a determination unit configured to determine which of a plurality of types of authentication procedures is to be applied as an authentication process for the on-vehicle device, on the basis of the identification information acquired by the acquisition unit.

Authentication control device, authentication control method, and authentication control program

A switching device relays data in an on-vehicle network and has a plurality of communication ports. The switching device comprises: a detection unit that detects a failure in communication with another switching device connected to one of the communication ports; and a processing unit that transmits failure information indicating at least any one of a site where the failure in communication occurs and a communication port to be used when the failure in communication occurs by a target switching device being a switching device different from said another switching device, to the target switching device if the failure in communication is detected by the detection unit.

Growing community of inventors

Yokkaichi, Japan

Yasuhiro Yabuuchi