WO2021019860A1 - 中継装置、車両、通信方法および通信プログラム - Google Patents

中継装置、車両、通信方法および通信プログラム Download PDF

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Publication number
WO2021019860A1
WO2021019860A1 PCT/JP2020/018254 JP2020018254W WO2021019860A1 WO 2021019860 A1 WO2021019860 A1 WO 2021019860A1 JP 2020018254 W JP2020018254 W JP 2020018254W WO 2021019860 A1 WO2021019860 A1 WO 2021019860A1
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WO
WIPO (PCT)
Prior art keywords
information
functional unit
unit
relay device
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/018254
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
山本祐輔
田中秀幸
泉達也
陶山洋次郎
萩原剛志
呉ダルマワン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to US17/615,174 priority Critical patent/US12362965B2/en
Priority to JP2021536615A priority patent/JP7464054B2/ja
Priority to CN202310180300.1A priority patent/CN116032687A/zh
Priority to CN202080039657.2A priority patent/CN113892247A/zh
Publication of WO2021019860A1 publication Critical patent/WO2021019860A1/ja
Anticipated expiration legal-status Critical
Priority to JP2024049397A priority patent/JP7632720B2/ja
Priority to US19/214,569 priority patent/US20250300856A1/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/565—Conversion or adaptation of application format or content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Definitions

  • the present disclosure relates to relay devices, vehicles, communication methods and communication programs. This application claims priority on the basis of Japanese Application Japanese Patent Application No. 2019-142205 filed on August 1, 2019, and incorporates all of its disclosures herein.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2017-217278 discloses the following network hub. That is, the network hub has a first network in which the first type frame related to vehicle travel control is transmitted by the bus according to the first communication protocol, and a second type frame according to the second communication protocol different from the first communication protocol.
  • a network hub connected to the bus of the first network and the second network in an in-vehicle network system including a second network in which transmission is performed, the first receive buffer, the second receive buffer, and the first transmission.
  • a second receiving unit that sequentially receives seed frames and stores the data in the second type frame in the second receiving buffer, and data that is the content of either the first receiving buffer or the second receiving buffer.
  • the data is stored in the first transmission buffer when the first network is selected, and the data is stored in the first transmission buffer when the second network is selected.
  • a selection unit stored in the transmission buffer and a transmission unit for transmitting untransmitted data in the first transmission buffer and untransmitted data in the second transmission buffer are provided, and the transmission unit is the first transmission unit.
  • Priority transmission so that untransmitted data in one of the one transmission buffer and the second transmission buffer in the priority transmission buffer is transmitted with priority over the untransmitted data in the other non-priority transmission buffer. Take control.
  • the relay device of the present disclosure is a relay device mounted on a vehicle and relays information transmitted and received between a functional unit connected to a first transmission line and a functional unit connected to a second transmission line.
  • the acquisition unit for acquiring the second functional unit information which is the functional unit information including the information regarding the network configuration of the layer lower than the application layer of the functional unit connected to the second transmission line, and the acquisition unit.
  • the second function unit information acquired by the unit can be registered in a database of one or more first function unit information which is the function unit information of one or more of the function units connected to the first transmission line. It is provided with a conversion unit that performs conversion processing for converting information into information.
  • the relay device of the present disclosure is a relay device mounted on a vehicle and performs first communication which is communication compliant with the first communication protocol and second communication which is communication compliant with the second communication protocol. It includes a communication unit and a generation unit that generates network information used for the first communication based on the network information used for the second communication.
  • the communication method of the present disclosure is in a relay device mounted on a vehicle and relaying information transmitted and received between a functional unit connected to a first transmission line and a functional unit connected to a second transmission line.
  • a step of acquiring second functional unit information which is functional unit information including information on a network configuration of a layer lower than the application layer of the functional unit connected to the second transmission line, which is a communication method.
  • the acquired second functional unit information is functional unit information including information on the network configuration of a layer lower than the application layer of one or more of the functional units connected to the first transmission line. It includes a step of performing a conversion process for converting information that can be registered in a database of a plurality of first functional unit information.
  • the communication program of the present disclosure is a relay device mounted on a vehicle and relaying information transmitted and received between a functional unit connected to the first transmission line and a functional unit connected to the second transmission line.
  • the communication program used is the second functional unit information which is the functional unit information including the information about the network configuration of the layer lower than the application layer of the functional unit connected to the second transmission line of the computer.
  • the acquisition unit to be acquired and the second functional unit information acquired by the acquisition unit are related to a network configuration of a layer lower than the application layer of one or more of the functional units connected to the first transmission line.
  • It is a program for functioning as a conversion unit that performs a conversion process for converting one or a plurality of first functional unit information into information that can be registered in a database, which is functional unit information including information.
  • One aspect of the present disclosure can be realized as a semiconductor integrated circuit that realizes a part or all of the relay device, or can be realized as a system including the relay device. Further, one aspect of the present disclosure may be realized as a semiconductor integrated circuit that realizes a part or all of a system including a relay device, or as a program for causing a computer to execute a processing step in the system including the relay device. Can be done.
  • FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment of the present disclosure.
  • FIG. 2 is a diagram showing an example of the configuration of the vehicle communication system according to the embodiment of the present disclosure.
  • FIG. 3 is a diagram showing an example of the configuration of the relay device according to the embodiment of the present disclosure.
  • FIG. 4 is a diagram showing another example of the configuration of the relay device according to the embodiment of the present disclosure.
  • FIG. 5 is a diagram showing an example of a configuration of a new network in the vehicle communication system according to the embodiment of the present disclosure.
  • FIG. 6 is a diagram showing an example of a configuration of a new network in the vehicle communication system according to the embodiment of the present disclosure.
  • FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment of the present disclosure.
  • FIG. 2 is a diagram showing an example of the configuration of the vehicle communication system according to the embodiment of the present disclosure.
  • FIG. 3 is a diagram showing an example of the configuration of the relay
  • FIG. 7 is a diagram showing an example of a database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • FIG. 8 is a diagram showing an example of an updated database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • FIG. 9 is a diagram showing an example of a conversion table in the storage unit of the relay device according to the embodiment of the present disclosure.
  • FIG. 10 is a diagram showing another example of the updated database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • FIG. 11 is a diagram showing an example of a support table in the storage unit of the relay device according to the embodiment of the present disclosure.
  • FIG. 12 is a diagram showing another example of the updated database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • FIG. 13 is a diagram showing an example of communication to be newly performed in the new network according to the embodiment of the present disclosure.
  • FIG. 14 is a diagram showing another example of the configuration of the new network in the vehicle communication system according to the embodiment of the present disclosure.
  • FIG. 15 is a diagram showing another example of communication to be newly performed in the new network according to the embodiment of the present disclosure.
  • FIG. 16 is a diagram showing another example of the configuration of the new network in the vehicle communication system according to the embodiment of the present disclosure.
  • FIG. 17 is a diagram showing an example of communication stopped in the new network according to the embodiment of the present disclosure.
  • FIG. 18 is a flowchart defining an operation procedure when a relay device assigns functional unit information to another relay device in the vehicle communication system according to the embodiment of the present disclosure.
  • FIG. 19 is a diagram showing an example of a sequence of new network construction processing in the vehicle communication system according to the embodiment of the present disclosure.
  • the present disclosure has been made to solve the above-mentioned problems, and an object thereof is to easily use information on the network configuration of functional units connected to different types of transmission lines in a system having a plurality of in-vehicle networks. It is to provide relay devices, vehicles, communication methods and communication programs that can be made possible.
  • the relay device is mounted on a vehicle and transmits information transmitted and received between a functional unit connected to the first transmission line and a functional unit connected to the second transmission line.
  • Acquisition of second functional unit information which is functional unit information including information on the network configuration of a layer lower than the application layer of the functional unit connected to the second transmission line, which is a relay device for relaying.
  • One or a plurality of first functional unit information which is the functional unit information of one or a plurality of the functional units connected to the unit and the second functional unit information acquired by the acquisition unit to the first transmission line. It is provided with a conversion unit that performs conversion processing to convert information that can be registered in the database of.
  • the converted functional unit information can be registered in the database, and the second functional unit information can be referred to and used in the same manner as the first functional unit information. Therefore, information regarding the network configuration of the functional unit connected to different types of transmission lines can be easily used.
  • the second element which is an element of the second functional unit information
  • the first functional unit information which has a definition different from that of the second element. Includes processing that applies to the first element.
  • the element of the second function part information is read as the element of the first function part information, and the value of the element in the second function part information is referred to and used as the value of the element of the first function part information. be able to.
  • the conversion process includes a process of converting the value of the element of the second function unit information according to a predetermined rule.
  • the value of the element of the second function part information converted according to a predetermined rule can be referred to and used as the value of the element of the first function part information.
  • the relay device further includes a storage unit, and the conversion process acquires information corresponding to the second function unit information or information based on the second function unit information from the storage unit. Including processing.
  • the information corresponding to the second function unit information or the information based on the second function unit information in the storage unit can be referred to and used as the first function unit information.
  • the data size of the second element which is an element of the second functional unit information
  • the data size of the first functional unit information is an element of the first functional unit information, which corresponds to the second element.
  • the element of the second function part information after the data size is changed can be referred to and used as the element of the first function part information.
  • the conversion unit registers the second function unit information after the conversion process in the database and registers the second function unit information in the database based on the second function unit information acquired by the acquisition unit. At least one of the registered deletion of the second function unit information is further performed.
  • the database can be flexibly updated based on the contents of the second function part information.
  • the relay device further includes one or more functional units connected to the first transmission line and one or more functional units connected to the second transmission line based on the database.
  • the management unit that updates the configuration information of the network including the above is provided with an addition unit that assigns the second function unit information converted by the conversion unit.
  • the converted second function unit information can be used for building a network in consideration of the network configuration and restrictions of the layer lower than the application layer.
  • the relay device is a relay device mounted on a vehicle and is a communication compliant with the first communication protocol and a communication compliant with the second communication protocol.
  • a communication unit that performs the second communication and a generation unit that generates the network information used for the first communication based on the network information used for the second communication are provided.
  • the first communication protocol is Ethernet (registered trademark)
  • the second communication protocol is CAN (Control Area Network) (registered trademark).
  • network information used for Ethernet-compliant communication and network information used for CAN-compliant communication can be registered in the same database. it can.
  • the vehicle according to the embodiment of the present disclosure is provided with the relay device.
  • the communication method transmits information transmitted and received between a functional unit mounted on a vehicle and connected to a first transmission line and a functional unit connected to a second transmission line.
  • the second functional unit information which is the communication method in the relay device to be relayed and is the functional unit information including the information about the network configuration of the layer lower than the application layer of the functional unit connected to the second transmission line.
  • Functional unit information including a step to be acquired and information on the network configuration of one or a plurality of the functional units connected to the first transmission line, which is lower than the application layer, with the acquired second functional unit information. This includes a step of performing a conversion process for converting one or a plurality of first functional unit information into information that can be registered in the database.
  • the converted second functional unit information can be registered in the database, and the second functional unit information can be referred to and used in the same manner as the first functional unit information. Therefore, information regarding the network configuration of the functional unit connected to different types of transmission lines can be easily used.
  • the communication program according to the embodiment of the present disclosure is mounted on a vehicle and transmits information transmitted and received between a functional unit connected to the first transmission line and a functional unit connected to the second transmission line.
  • a communication program used in a relay device for relaying which is functional unit information including information on a network configuration of a layer lower than the application layer of the functional unit connected to the second transmission line.
  • the acquisition unit that acquires the two-function unit information and the second function unit information acquired by the acquisition unit are lower than the application layer of one or more of the function units connected to the first transmission line.
  • It is a program for functioning as a conversion unit that performs conversion processing for converting one or a plurality of first functional unit information into information that can be registered in a database, which is functional unit information including information on the network configuration of the layer.
  • the second functional unit information of the functional unit connected to the second transmission line is converted into information that can be registered in the database of the first functional unit information of the functional unit connected to the first transmission line.
  • the converted functional unit information can be registered in the database DB, and the second functional unit information can be referred to and used in the same manner as the first functional unit information. Therefore, information regarding the network configuration of the functional unit connected to different types of transmission lines can be easily used.
  • FIG. 1 is a diagram showing a configuration of a communication system according to an embodiment of the present disclosure.
  • the communication system 400 includes a server 180 and one or more vehicle communication systems 300.
  • the vehicle communication system 300 is mounted on the vehicle 1.
  • FIG. 2 is a diagram showing an example of the configuration of the vehicle communication system according to the embodiment of the present disclosure.
  • the vehicle communication system 300 includes one or more in-vehicle ECUs (Electronic Control Units) 111, one or more in-vehicle ECUs 112, and relay devices 200A and 200B.
  • the vehicle communication system 300 includes vehicle-mounted ECUs 111A to 111D as vehicle-mounted ECUs 111, and vehicle-mounted ECUs 112A to 112D as vehicle-mounted ECUs 112.
  • each of the relay devices 200A and 200B will also be referred to as a relay device 200.
  • the in-vehicle ECUs 111A to 111D include the application 101, respectively.
  • the in-vehicle ECUs 112A to 112D each include an application 102.
  • the vehicle-mounted ECU 111A includes the application 101A
  • the vehicle-mounted ECU 111B includes the application 101B
  • the vehicle-mounted ECU 111C includes the application 101C
  • the vehicle-mounted ECU 111D includes the application 101D.
  • the vehicle-mounted ECU 112A includes the application 102A
  • the vehicle-mounted ECU 112B includes the application 102B
  • the vehicle-mounted ECU 112C includes the application 102C
  • the vehicle-mounted ECU 112D includes the application 102D.
  • the in-vehicle ECU 111 is connected to the relay device 200 via the Ethernet cable 21. Further, the in-vehicle ECU 112 is connected to the relay device 200 via the CAN bus 22.
  • the plurality of Ethernet cables 21 are an example of the first transmission line.
  • the CAN bus 22 is an example of a second transmission line.
  • the in-vehicle ECUs 111A and 111B are connected to the relay device 200A via the Ethernet cable 21
  • the in-vehicle ECUs 112A and 112B are connected to the relay device 200A via the CAN bus 22
  • the in-vehicle ECUs 111C and 111D connect the Ethernet cable 21.
  • the vehicle-mounted ECUs 112C and 112D are connected to the relay device 200B via the CAN bus 22
  • the vehicle-mounted ECUs 112C and 112D are connected to the relay device 200B via the CAN bus 22.
  • the relay device 200A and the relay device 200B are connected to each other via the Ethernet cable 21.
  • the in-vehicle ECUs 111A to 111D, the in-vehicle ECUs 112A to 112D, and the relay devices 200A and 200B constitute the network 12.
  • the in-vehicle ECU 111, the in-vehicle ECU 112, the application 101, and the application 102 are examples of the functional units mounted on the vehicle 1 among the functional units in the network 12.
  • the vehicle communication system 300 is not limited to the configuration including four in-vehicle ECUs 111, and may be configured to include three or less or five or more in-vehicle ECUs 111. Further, the vehicle communication system 300 is not limited to the configuration including four in-vehicle ECUs 112, and may be configured to include three or less or five or more in-vehicle ECUs 112.
  • the vehicle communication system 300 is not limited to a configuration in which one application 101 is mounted on one vehicle-mounted ECU 111, and may be configured in which two or more applications 101 are mounted on one vehicle-mounted ECU 111. Further, the vehicle communication system 300 is not limited to a configuration in which one application 102 is mounted on one vehicle-mounted ECU 112, and may be configured in which two or more applications 102 are mounted on one vehicle-mounted ECU 112.
  • vehicle communication system 300 is not limited to a configuration including two relay devices 200, but may be configured to include only a relay device 200A or a relay device 200B, or a configuration including three or more relay devices 200. You may.
  • the network 12 may include an external device outside the vehicle 1 capable of communicating with the TCU described later and an application provided in the external device as a functional unit.
  • the in-vehicle ECUs 111 and 112 are, for example, a TCU (Telematics Communication Unit), an automatic driving ECU, an engine ECU, a sensor, a navigation device, a human-machine interface, a camera, and the like.
  • TCU Transmission Control Unit
  • An automatic driving ECU an engine ECU
  • a sensor a sensor
  • a navigation device a human-machine interface
  • a camera and the like.
  • the relay device 200 is, for example, a gateway device, and can relay data between a plurality of in-vehicle ECUs 111 and 112 connected to itself.
  • the relay device 200 can perform relay processing according to, for example, layer 2 and layer 3 higher than layer 2, and for example, relay processing of frames between in-vehicle ECUs 111 and 112 belonging to the same VLAN and different VLANs.
  • the frame is relayed between the in-vehicle ECUs 111 and 112 to which it belongs.
  • the relay device 200 performs frame relay processing according to at least one of the communication standards of Ethernet and CAN.
  • Ethernet is an example of a first communication protocol
  • CAN is an example of a second communication protocol.
  • a frame conforming to the Ethernet communication standard is referred to as an Ethernet frame
  • a frame conforming to the CAN communication standard is referred to as a CAN frame.
  • IP packets are stored in the Ethernet frame.
  • the relay device 200 relays the Ethernet frame exchanged between the vehicle-mounted ECU 111 connected via the Ethernet cable.
  • the relay device 200 relays the CAN frame exchanged between the in-vehicle ECU 112 connected via the CAN bus.
  • the relay device 200 generates a CAN frame based on the Ethernet frame received from the vehicle-mounted ECU 111 connected via the Ethernet cable, and relays the generated CAN frame to the vehicle-mounted ECU 112 via the CAN bus.
  • the relay device 200 generates an Ethernet frame based on the CAN frame received from the vehicle-mounted ECU 112 connected via the CAN bus, and relays the generated Ethernet frame to the vehicle-mounted ECU 111 via the Ethernet cable.
  • the vehicle communication system 300 is not limited to the configuration in which the Ethernet frame and the CAN frame are relayed according to the Ethernet communication standard and the CAN communication standard, respectively.
  • FlexRay registered trademark
  • MOST Media Oriented Systems Transport
  • Data may be relayed in accordance with communication standards such as (registered trademark) and LIN (Local Ethernet Network).
  • the TCU which is an example of the in-vehicle ECUs 111 and 112, can communicate with the server 180. Specifically, the TCU can communicate with an external device such as a server 180 via the radio base station device 161 using, for example, an IP packet.
  • the TCU can perform wireless communication with the wireless base station device 161 according to a communication standard such as LTE (Long Term Evolution) or 3G.
  • a communication standard such as LTE (Long Term Evolution) or 3G.
  • the in-vehicle ECU 111 is a TCU
  • the radio base station device 161 receives an IP packet from the server 180 via the external network 170
  • the received IP packet is included in the radio signal and transmitted to the TCU.
  • the TCU when the TCU receives a radio signal including an IP packet from the server 180 from the radio base station device 161, the TCU acquires an IP packet from the received radio signal, stores the acquired IP packet in an Ethernet frame, and relays the device 200. Send to.
  • the TCU When the TCU receives the Ethernet frame from the relay device 200, the TCU acquires an IP packet from the received Ethernet frame, includes the acquired IP packet in the radio signal, and transmits the IP packet to the radio base station device 161.
  • the radio base station device 161 When the radio base station device 161 receives a radio signal from the TCU, it acquires an IP packet from the received radio signal and transmits the acquired IP packet to the server 180 via the external network 170.
  • the automatic driving ECU which is an example of the vehicle-mounted ECUs 111 and 112, can communicate with other vehicle-mounted ECUs 111 and 112 via the relay device 200.
  • the vehicle 1 can use the measurement information from the sensor. It detects the driving situation and performs automatic driving control based on the detection result.
  • Each application 101, 102 performs predetermined processing in the in-vehicle ECUs 111, 112 on which the application layer is mounted, for example, by processing the application layer.
  • the applications 101 and 102 in the temperature sensor which is an example of the vehicle-mounted ECUs 111 and 112, generate temperature information indicating the outside air temperature of the vehicle 1 at a predetermined cycle.
  • FIG. 3 is a diagram showing an example of the configuration of the relay device according to the embodiment of the present disclosure.
  • FIG. 3 shows the configuration of the relay device 200A.
  • the relay device 200A includes communication ports 121A, 121B, 121C, 121D, 122, a relay unit 210, a detection unit 220, an acquisition unit 230, a conversion unit 240, and an imparting unit 250. It includes a storage unit 260.
  • the storage unit 260 is, for example, a flash memory.
  • FIG. 4 is a diagram showing another example of the configuration of the relay device according to the embodiment of the present disclosure.
  • FIG. 4 shows the configuration of the relay device 200B.
  • the relay device 200B includes an update unit 270 and a notification unit 280 instead of the grant unit 250 as compared with the relay device 200A.
  • Communication ports 121A, 121B, 121C, 121D are terminals to which, for example, an Ethernet cable 21 can be connected.
  • each of the communication ports 121A, 121B, 121C, and 121D will also be referred to as a communication port 121.
  • the communication port 122 is, for example, a terminal to which the CAN bus 22 can be connected.
  • the relay device 200B is connected to the communication port 121A
  • the vehicle-mounted ECU 111A is connected to the communication port 121B
  • the vehicle-mounted ECU 111B is connected to the communication port 121C
  • the vehicle-mounted ECU 111B is connected to the communication port 122.
  • the vehicle-mounted ECU 112A and the vehicle-mounted ECU 112B are connected.
  • the relay device 200A is connected to the communication port 121A
  • the vehicle-mounted ECU 111C is connected to the communication port 121B
  • the vehicle-mounted ECU 111D is connected to the communication port 121C
  • the vehicle-mounted ECU 111D is connected to the communication port 122.
  • the in-vehicle ECU 112C and the in-vehicle ECU 112D are connected.
  • the relay unit 210 relays information transmitted and received between the vehicle-mounted ECUs 111 and 112.
  • the relay unit 210 performs Ethernet-compliant communication and CAN-compliant communication.
  • the relay unit 210 is an example of a communication unit.
  • the relay unit 210 relays information transmitted and received between the vehicle-mounted ECU 111 connected to the Ethernet cable 21.
  • the relay unit 210 when the relay unit 210 receives an Ethernet frame addressed to the vehicle-mounted ECU 111 connected to its own relay device 200 from a certain vehicle-mounted ECU 111 via the corresponding communication port 121, the relay unit 210 communicates the received Ethernet frame with the corresponding communication. It relays to the destination vehicle-mounted ECU 111 via the port 121.
  • the relay unit 210 When the relay unit 210 receives an Ethernet frame addressed to the vehicle-mounted ECU 111 connected to the other relay device 200 from the vehicle-mounted ECU 111 via the corresponding communication port 121, the relay unit 210 transmits the received Ethernet frame to the other relay device 200 via the communication port 121A. Relay to.
  • the relay unit 210 When the relay unit 210 receives an Ethernet frame addressed to the vehicle-mounted ECU 111 connected to its own relay device 200 from another relay device 200 via the communication port 121A, the relay unit 210 receives the received Ethernet frame via the corresponding communication port 121 and receives the received Ethernet frame in the vehicle-mounted vehicle. Relay to ECU 111.
  • the relay unit 210 relays information transmitted and received between the vehicle-mounted ECU 112 connected to the CAN bus 22.
  • the relay unit 210 when the relay unit 210 receives a CAN frame addressed to the vehicle-mounted ECU 112 connected to its own relay device 200 from a certain vehicle-mounted ECU 112 via the communication port 122, the relay unit 210 receives the received CAN frame via the communication port 122. It relays to the destination in-vehicle ECU 112.
  • the relay unit 210 When the relay unit 210 receives a CAN frame addressed to the vehicle-mounted ECU 112 connected to the other relay device 200 from the vehicle-mounted ECU 112 via the communication port 122, the relay unit 210 acquires data from the received CAN frame, and the Ethernet frame including the acquired data. To generate. Then, the relay unit 210 relays the generated Ethernet frame to another relay device 200 via the communication port 121A.
  • the relay unit 210 When the relay unit 210 receives an Ethernet frame addressed to the vehicle-mounted ECU 112 connected to its own relay device 200 from another relay device 200 via the communication port 121A, the relay unit 210 acquires data from the received Ethernet frame and includes the acquired data. Generate a CAN frame. Then, the relay unit 210 relays the generated CAN frame to the destination vehicle-mounted ECU 112 via the communication port 122.
  • the relay unit 210 relays information transmitted and received between the vehicle-mounted ECU 111 connected to the Ethernet cable 21 and the vehicle-mounted ECU 111 connected to the CAN bus 22.
  • the relay unit 210 when the relay unit 210 receives an Ethernet frame addressed to the vehicle-mounted ECU 112 connected to its own relay device 200 from a certain vehicle-mounted ECU 111 via the corresponding communication port 121, the relay unit 210 acquires data from the received Ethernet frame. Then, a CAN frame containing the acquired data is generated. Then, the relay unit 210 relays the generated CAN frame to the destination vehicle-mounted ECU 112 via the communication port 122.
  • the relay unit 210 When the relay unit 210 receives a CAN frame addressed to the vehicle-mounted ECU 111 connected to its own relay device 200 from a certain vehicle-mounted ECU 112 via the communication port 122, the relay unit 210 acquires data from the received CAN frame and an Ethernet frame including the acquired data. To generate. Then, the relay unit 210 relays the generated Ethernet frame to the destination vehicle-mounted ECU 111 via the corresponding communication port 121.
  • the relay unit 210 When the relay unit 210 receives an Ethernet frame addressed to the vehicle-mounted ECU 112 connected to the other relay device 200 from the vehicle-mounted ECU 111 via the corresponding communication port 121, the relay unit 210 transmits the received Ethernet frame to the other relay device 200 via the communication port 121A. Relay to.
  • the relay unit 210 When the relay unit 210 receives a CAN frame addressed to the vehicle-mounted ECU 111 connected to the other relay device 200 from the vehicle-mounted ECU 112 via the communication port 122, the relay unit 210 acquires data from the received CAN frame, and the Ethernet frame including the acquired data. To generate. Then, the relay unit 210 relays the generated Ethernet frame to another relay device 200 via the communication port 121A.
  • the detection unit 220 detects at least one of the addition of a new functional unit and the deletion of the functional unit in the network 12.
  • the detection unit 220 detects functional units such as in-vehicle ECUs 111 and 112, external devices and applications 101 and 102 newly added to the network 12 as new functional units. Further, when the functional units such as the in-vehicle ECUs 111 and 112, the external devices and the applications 101 and 102 are deleted in the network 12, the detection unit 220 detects that the functional units have been deleted.
  • the detection unit 220 broadcasts a search message for detecting the in-vehicle ECUs 111 and 112 in the network 12 via the relay unit 210 on a regular or irregular basis.
  • the vehicle-mounted ECUs 111 and 112 in the network 12 receive the search message from the detection unit 220, and transmit connection information including its own ID, for example, the MAC address as a response to the received search message.
  • the detection unit 220 receives connection information from the vehicle-mounted ECUs 111 and 112 via the relay unit 210, and detects the addition of new vehicle-mounted ECUs 111 and 112 and the deletion of the vehicle-mounted ECUs 111 and 112 based on the received connection information.
  • the in-vehicle ECUs 111 and 112 newly added to the network 12 may be configured to transmit connection request information for requesting a communication connection in the network 12 to the relay device 200.
  • the detection unit 220 receives the connection request information via the relay unit 210 and detects the in-vehicle ECUs 111 and 112 from which the connection request information is transmitted.
  • the network 12 including the new functional unit and the network 12 after the functional unit is deleted are also referred to as a new network, and the network 12 before the new functional unit is added and the network 12 before the functional unit is deleted are existing. Also called a network.
  • FIG. 5 is a diagram showing an example of a configuration of a new network in the vehicle communication system according to the embodiment of the present disclosure.
  • the vehicle-mounted ECU 112E is newly added to the network 12 by connecting the vehicle-mounted ECU 112E to the relay device 200 via the CAN bus 22.
  • the in-vehicle ECU 112E includes the application 102E.
  • the in-vehicle ECU 112E is connected to, for example, the CAN bus 22 connected to the communication port 122 of the relay device 200A.
  • the in-vehicle ECU 112E receives the search message from the detection unit 220 in the relay device 200A, and transmits the connection information including its own ID, for example, the MAC address to the detection unit 220 in the relay device 200A as a response to the received search message.
  • the in-vehicle ECU 112E generates a CAN frame including connection information, and transmits the generated CAN frame to the relay device 200A.
  • the detection unit 220 in the relay device 200A receives the CAN frame transmitted from the vehicle-mounted ECU 112E, the detection unit 220 performs authentication processing of the vehicle-mounted ECU 112E using the ID included in the received CAN frame and the like.
  • the detection unit 220 When the detection unit 220 succeeds in authenticating the in-vehicle ECU 112E, the detection unit 220 generates a CAN frame addressed to the in-vehicle ECU 112E including authentication success information indicating that the authentication is successful, and transmits the generated CAN frame to the in-vehicle ECU 112E via the relay unit 210. ..
  • FIG. 6 is a diagram showing an example of a configuration of a new network in the vehicle communication system according to the embodiment of the present disclosure.
  • the in-vehicle ECU 111E includes application 101E.
  • the in-vehicle ECU 111E is connected to the communication port 121D in the relay device 200A via, for example, the Ethernet cable 21.
  • the in-vehicle ECU 111E receives the search message from the detection unit 220 in the relay device 200A, and transmits the connection information including its own ID, for example, the MAC address to the detection unit 220 in the relay device 200A as a response to the received search message.
  • the in-vehicle ECU 111E generates an Ethernet frame including connection information, and transmits the generated Ethernet frame to the relay device 200A.
  • the detection unit 220 in the relay device 200A receives the Ethernet frame transmitted from the vehicle-mounted ECU 111E, the detection unit 220 performs the authentication process of the vehicle-mounted ECU 111E by using the ID included in the received Ethernet frame.
  • the detection unit 220 When the detection unit 220 succeeds in authenticating the in-vehicle ECU 111E, the detection unit 220 generates an Ethernet frame addressed to the in-vehicle ECU 111E including authentication success information indicating that the authentication is successful, and transmits the generated Ethernet frame to the in-vehicle ECU 111E via the relay unit 210. ..
  • the detection unit 220 When the detection unit 220 succeeds in authenticating the in-vehicle ECUs 111 and 112, which are new function units as described above, the detection unit 220 outputs the detection information indicating the ID of the in-vehicle ECUs 111 and 112 to the acquisition unit 230.
  • the new function unit detected by the detection unit 220 is not limited to the in-vehicle ECUs 111 and 112 newly connected to the relay device 200.
  • the detection unit 220 may be configured to detect applications 101 and 102 installed in the vehicle-mounted ECUs 111 and 112 in the existing network as new functional units.
  • the acquisition unit 230 acquires the functional unit information F1 including information on the network configuration of the layer lower than the application layer of the vehicle-mounted ECU 111 connected to the Ethernet cable 21.
  • the functional unit information F1 is an example of the first functional unit information.
  • the acquisition unit 230 acquires the functional unit information F2 including information on the network configuration of the layer lower than the application layer of the vehicle-mounted ECU 112 connected to the CAN bus 22.
  • the functional unit information F2 is an example of the second functional unit information.
  • the acquisition unit 230 acquires the functional unit information F1 of the vehicle-mounted ECU 111 and the functional unit information F2 of the vehicle-mounted ECU 112 indicated by the detection information received from the detection unit 220, and the functional unit information F1 of the vehicle-mounted ECU 111 in the existing network. And the functional part information F2 of the vehicle-mounted ECU 112 is acquired.
  • the acquisition unit 230 can recognize the specifications of hardware devices such as the in-vehicle ECUs 111 and 112, the relay device 200 and the external device in the new network, and the topology of the new network as the functional unit information F1 and F2, and the new network. Acquires information that can recognize at least one of the restrictions on the arrangement of the applications 101 and 102 on the hardware device in the above and the restrictions on the communication method in the new network.
  • the acquisition unit 230 can recognize the specifications of the hardware device and the topology of the new network, for example, for each device type, memory size, and communication protocol indicating the identifier, name, sensor type, and function of the hardware device. Information on the number of physical ports provided, physical port identifier, power supply configuration, power consumption, WLAN ID, subnet address and functional domain, and CPU (Central Processing Unit) or GPU (Graphics Processing Unit) installed in the hardware device. Information on the specifications of the above, information on the connection relationship between the hardware devices, information on the bandwidth of communication between the hardware devices, and information on the specifications of the relay device 200, at least one kind of information is acquired.
  • the acquisition unit 230 can recognize restrictions on the arrangement of the applications 101 and 102 on the hardware device, for example, the calculation speed required for execution of the applications 101 and 102, the memory usage amount, and the OS (Operating System) environment.
  • the communication protocol such as TCP (Transmission Control Protocol) and UDP (User Datagram Protocol)
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • the acquisition unit 230 allows the communication volume of the applications 101 and 102, the presence / absence of LAG (Link Aggregation) support, the communication frequency, the necessity of burst transmission, and the permissible information as information that can recognize the restriction of the communication method in the new network. Delay time, amount of loss allowed, level of security required, timing of operation, eg communication type indicating periodic or irregular communication, identifiers of applications 101, 102 to communicate with, and request response type or publication Acquires at least one type of information from the messaging method indicating the subscription type and the information regarding the priority of communication by the applications 101 and 102.
  • LAG Link Aggregation
  • the in-vehicle ECU 111 periodically transmits its own functional unit information F1 and a functional unit information frame FA1 which is an Ethernet frame including a time stamp to the relay device 200.
  • the in-vehicle ECU 111 periodically transmits the functional unit information frame FA1 to the relay device 200 according to, for example, LLDP (Link Layer Discovery Protocol).
  • LLDP Link Layer Discovery Protocol
  • the acquisition unit 230 transmits an information request notification RA indicating that the functional unit information F2 should be transmitted to the vehicle-mounted ECU 112 via the relay unit 210.
  • the in-vehicle ECU 112 transmits the functional unit information frame FA2, which is a CAN frame including its own functional unit information F2 and a time stamp, to the acquisition unit 230.
  • the storage unit 260 includes a database of functional unit information F1 of one or a plurality of vehicle-mounted ECUs 111.
  • the acquisition unit 230 When the acquisition unit 230 receives the functional unit information frame FA1 from the vehicle-mounted ECU 111 via the relay unit 210, the acquisition unit 230 acquires the functional unit information F1 from the received functional unit information frame FA1. The acquisition unit 230 registers the acquired functional unit information F1 in the database in the storage unit 260 for each in-vehicle ECU 111.
  • the acquisition unit 230 receives the functional unit information frame FA2 from the vehicle-mounted ECU 112 via the relay unit 210, the acquisition unit 230 outputs the received functional unit information frame FA2 to the conversion unit 240.
  • the conversion unit 240 is an example of a generation unit that generates network information used for communication according to Ethernet, for example, functional unit information F1 based on network information used for communication according to CAN, for example, functional unit information F2.
  • the conversion unit 240 when the conversion unit 240 receives the functional unit information frame FA2 from the acquisition unit 230, the conversion unit 240 converts the functional unit information F2 included in the received functional unit information frame FA2 into the database of the functional unit information F1 in the storage unit 260. Performs conversion processing to convert to registerable information.
  • FIG. 7 is a diagram showing an example of a database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • the functional unit information F1 of the vehicle-mounted ECU 111 connected to the relay device 200A via the Ethernet cable 21 is registered for each vehicle-mounted ECU 111. ing.
  • the functional unit information F1 of the in-vehicle ECU 111A the ID "0x04" of the in-vehicle ECU 111A, the "G function” which is the function of the in-vehicle ECU 111A, and the communication protocol to which the in-vehicle ECU 111A conforms.
  • "True” indicating that the Ethernet has LAG support
  • "0x1A” which is the ID of the vehicle-mounted ECU 111C to which the data of the vehicle-mounted ECU 111A is transmitted
  • "20" indicating the amount of communication from the vehicle-mounted ECU 111A to the vehicle-mounted ECU 111C. Is registered.
  • "0x” means that the numerical value which follows is hexadecimal notation.
  • the functional unit information F2 in the functional unit information frame FA2 that the conversion unit 240 receives from the acquisition unit 230 includes source information indicating the source ID of the functional unit information F2 and the vehicle-mounted ECU 112 of the source of the functional unit information F2.
  • the ECU function information indicating the function of the above and the state information indicating the state of the vehicle-mounted ECU 112 of the transmission source of the function unit information F2 are included.
  • the conversion unit 240 converts various information included in the functional unit information frame FA2 received from the acquisition unit 230 into information that can be registered in the database DB, and registers the converted various information in the database DB.
  • the conversion unit 240 performs a process of applying the element E2 of the functional unit information F2 to the element E1 which is an element of the functional unit information F1 and has a definition different from that of the element E2.
  • the conversion unit 240 acquires the functional unit information F2 of the vehicle-mounted ECU 112A from the functional unit information frame FA2 received from the acquisition unit 230.
  • the conversion unit 240 performs the conversion process as the element E2 in the functional unit information F2.
  • the process of applying the "source ID" to the element E1 of the ID of the vehicle-mounted ECU 112A in the functional unit information F1 is performed.
  • FIG. 8 is a diagram showing an example of an updated database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • the conversion unit 240 applies the source ID, which is the element E2 in the functional unit information F2 of the vehicle-mounted ECU 112A, to the element E1 of the ID of the vehicle-mounted ECU 112 in the functional unit information F1, and transmits in the functional unit information F2.
  • the value of the original ID "0x01" is registered in the database DB as the ID of the vehicle-mounted ECU 112.
  • the conversion unit 240 converts the value of the element E2 of the functional unit information F2 according to a predetermined rule.
  • the conversion unit 240 acquires the functional unit information F2 of the vehicle-mounted ECU 112A from the functional unit information frame FA2 received from the acquisition unit 230.
  • the conversion unit 240 indicates the ECU function information in the functional unit information F2 as the conversion process.
  • a process of converting a function into a corresponding function in the function unit information F1 is performed.
  • the storage unit 260 further stores a conversion table showing the correspondence between the ECU function information in the function unit information F2 and the function defined in the function unit information F2 and the corresponding function in the function unit information F1.
  • the conversion table is a table that defines conversion rules that are an example of the above-mentioned predetermined rules when converting the value of the element E2 of the functional unit information F2.
  • the conversion unit 240 converts the value of the element E2 of the functional unit information F2 into information that can be registered in the database DB according to the conversion rule determined by the conversion table.
  • FIG. 9 is a diagram showing an example of a conversion table in the storage unit of the relay device according to the embodiment of the present disclosure.
  • the conversion unit 240 corresponds to the function unit information F1 corresponding to the ECU function information based on the conversion table CT in the storage unit 260. It is specified that the function to be performed is the "D function".
  • FIG. 10 is a diagram showing another example of the updated database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • the conversion unit 240 has the function unit information F1 corresponding to the ECU function information “0b01” included in the function unit information F2 of the vehicle-mounted ECU 112A based on the conversion table CT in the storage unit 260.
  • the corresponding function "D function" is registered in the database DB as a function of the in-vehicle ECU 112.
  • the conversion unit 240 acquires the information corresponding to the functional unit information F2 or the information based on the functional unit information F2 from the storage unit 260.
  • the conversion unit 240 identifies that the functional unit information frame FA2 is a CAN frame by referring to the header field of the functional unit information frame FA2 received from the acquisition unit 230.
  • the storage unit 260 stores a support information table indicating a communication protocol having LAG support and a communication protocol not having LAG support.
  • FIG. 11 is a diagram showing an example of a support table in the storage unit of the relay device according to the embodiment of the present disclosure.
  • the support information table ST shows, for example, that Ethernet has LAG support and CAN does not have LAG support.
  • CAN which is a communication protocol to which the in-vehicle ECU 112A conforms, is LAG based on the support information table ST in the storage unit 260. Recognize that you do not have support.
  • FIG. 12 is a diagram showing another example of the updated database in the storage unit of the relay device according to the embodiment of the present disclosure.
  • the conversion unit 240 specifies that the communication protocol compliant with the vehicle-mounted ECU 112A does not have LAG support based on the support information table ST in the storage unit 260
  • the communication unit compliant with the vehicle-mounted ECU 112A The fact that the protocol does not have LAG support is registered in the database DB.
  • the conversion unit 240 performs a process of changing the data size of the element E2 of the functional unit information F2 to the data size of the element E1 which is an element of the functional unit information F1 and is an element corresponding to the element E2. ..
  • the conversion unit 240 acquires the functional unit information F2 of the vehicle-mounted ECU 112A from the functional unit information frame FA2 received from the acquisition unit 230.
  • the conversion unit 240 As the conversion process, the data size of the element E2 in the functional unit information F2 is changed to the data size of the element E1 of the ID of the vehicle-mounted ECU 112A in the functional unit information F1.
  • the conversion unit 240 When the conversion unit 240 includes "0x000000001" which is a 4-byte value as the source ID in the acquired functional unit information F2, the conversion unit 240 sets the value of the source ID as a 1-byte value "0x01" as the conversion process. To change to.
  • the conversion unit 240 applies the source ID, which is the element E2 in the functional unit information F2 of the vehicle-mounted ECU 112A, to the element E1 of the ID of the vehicle-mounted ECU 112 in the functional unit information F1, and after the data size is changed.
  • the value of the source ID "0x01" is registered in the database DB as the ID of the vehicle-mounted ECU 112.
  • the conversion unit 240 is not limited to a configuration in which the data size of the element E2 of the functional unit information F2 is reduced as a change process, but may be a configuration in which the data size of the element E2 of the functional unit information F2 is increased.
  • the conversion unit 240 acquires the functional unit information F2 of the vehicle-mounted ECU 112A from the functional unit information frame FA2 received from the acquisition unit 230, and based on the acquired functional unit information F2, the functional unit information registered in the database DB. Delete F2.
  • the conversion unit 240 acquires the functional unit information F2 of the vehicle-mounted ECU 112A from the functional unit information frame FA2 received from the acquisition unit 230.
  • the conversion unit 240 has the state. Based on the information, the functional part information F2 registered in the database DB is deleted.
  • the conversion unit 240 records the time stamp included in the functional unit information frame FA2 in the storage unit 260.
  • the conversion unit 240 refers to the time stamp in the storage unit 260, and when a predetermined time elapses after receiving the functional unit information frame FA2 including the state information indicating "passive", the vehicle-mounted unit registered in the database DB The functional part information F2 of the ECU 112A is deleted.
  • the granting unit 250 in the relay device 200A transmits the functional unit information F1 and the functional unit information F2 to the relay device 200B based on the database DB in the storage unit 260.
  • the relay device 200A transmits, for example, each functional unit information F1 and each functional unit information F2 registered in the database DB in its own storage unit 260 to the relay device 200B according to SNMP (Simple Network Management Protocol).
  • SNMP Simple Network Management Protocol
  • the acquisition unit 230 in the relay device 200B transmits an information request notification RB indicating that the functional unit information should be transmitted to the relay device 100A via the relay unit 210.
  • the relay unit 210 in the relay device 200A receives the information request notification RB from the relay device 200B via the communication port 121A, the relay unit 210 outputs the received information request notification RB to the granting unit 250.
  • the granting unit 250 Upon receiving the information request notification RB from the relay unit 210, the granting unit 250 acquires each functional unit information F1 and each functional unit information F2 registered in the database DB in the storage unit 260, and each acquired functional unit information F1. And each functional unit information F2 is transmitted to the relay device 200B via the relay unit 210.
  • the granting unit 250 in the relay device 200B acquires each functional unit information F1 and each functional unit information F2 registered in the database DB in the storage unit 260 periodically or irregularly, and each acquired functional unit information.
  • the configuration may be such that F1 and each functional unit information F2 are transmitted to the relay device 200B via the relay unit 210.
  • the relay unit 210 in the relay device 200B receives each function unit information F1 and each function unit information F2 from the relay device 200A via the communication port 121A, the relay unit 210 receives each function unit information F1 and each function unit information F2. Output to the acquisition unit 230.
  • the database DB in the storage unit 260 uses the acquired function unit information F1 and each function unit information F2. To update. Specifically, the acquisition unit 230 uses the acquired function unit information F1 and each function unit information F2 to add each function unit information F1 and each function unit information F2 to the database DB and register them in the database DB. The information F1 of each functional unit and the information F2 of each functional unit are changed or deleted.
  • the update unit 270 in the relay device 200B updates the configuration information of the network 12 including one or more vehicle-mounted ECUs 111 connected to the Ethernet cable 21 and one or more vehicle-mounted ECUs 112 connected to the CAN bus 22.
  • the update unit 270 is an example of a management unit.
  • the update unit 270 generates configuration information indicating the setting contents of the relay device 200 and the in-vehicle ECUs 111 and 112 for communicating in the new network based on the database DB in the storage unit 260.
  • the update unit 270 has each functional unit information F1 and each functional unit information registered in the updated database DB.
  • F2 in consideration of the logical configuration and physical configuration of the new network, the relay device 200 and the in-vehicle ECUs 111 and 112 communicate with each other in the OSI (Open Systems Information) reference model under layer 4 in the new network. Generates configuration information indicating the setting contents of the relay device 200 and the in-vehicle ECUs 111 and 112.
  • OSI Open Systems Information
  • the update unit 270 is a communication path and a new network used for communication to be newly performed in the new network to which the in-vehicle ECU 112E is added, based on each function unit information F1 and each function unit information F2 in the updated database DB. Recognize the amount of communication in each communication path in.
  • FIG. 13 is a diagram showing an example of communication to be newly performed in the new network according to the embodiment of the present disclosure.
  • FIG. 13 shows a communication path used for communication to be newly performed in the new network to which the in-vehicle ECU 112E is added, and the amount of communication in each communication path in the new network.
  • the update unit 270 relays the relay device 200A and the relay among the communications of the communication paths R11, R12, and R13 based on each functional unit information F1 and each functional unit information F2 in the updated database DB. It is recognized that the amount of communication between the relay device 200A and the relay device 200B increases by 20 by starting the communication of the communication paths R11 and R13 requiring relay between the devices 200B.
  • the upper limit of the bandwidth usable amount between the relay device 200A and the relay device 200B is 100. Further, for example, it is assumed that the bandwidth usage between the relay device 200A and the relay device 200B in the existing network shown in FIG. 5 is 70.
  • the update unit 270 increases the bandwidth usage amount between the relay device 200A and the relay device 200B in the new network. Since the total is 90, which is 100 or less, which is the upper limit, it is determined that the communication paths R11 and R13 can be communicated.
  • the update unit 270 generates configuration information indicating various setting contents of the relay device 200 and the in-vehicle ECUs 111 and 112 for newly performing communication in the communication paths R11, R12, and R13 in the new network.
  • the update unit 270 outputs the generated configuration information to the notification unit 280 and registers it in the storage unit 260.
  • the notification unit 280 When the notification unit 280 receives the configuration information from the update unit 270, the notification unit 280 communicates with at least one of the relay device 200A and the in-vehicle ECUs 111 and 112 in the new network in the new network based on the received configuration information. Notify the setting contents for.
  • the notification unit 280 notifies the relay device 200A and the in-vehicle ECUs 111A, 111C, 112C, 112E that need to change the settings based on the configuration information received from the update unit 270.
  • the notification unit 280 does not notify the relay device 200A and the in-vehicle ECUs 111 and 112 of the setting contents.
  • the relay device 200A and the in-vehicle ECUs 111A, 111C, 112C, 112E in the new network are notified of the setting contents from the notification unit 280, various setting changes are made according to the notified setting contents.
  • the relay device 200B makes various setting changes based on the generated configuration information.
  • the relay device 200 and the in-vehicle ECUs 111 and 112 in the new network communicate with each other according to the changed settings.
  • FIG. 14 is a diagram showing another example of the configuration of the new network in the vehicle communication system according to the embodiment of the present disclosure.
  • the vehicle-mounted ECU 112F is connected to the relay device 200B via the CAN bus 22, so that the vehicle-mounted ECU 112F is newly added to the network 12 and the vehicle-mounted ECU 112F is added. It is assumed that the database DB in the storage unit 260 of the relay device 200B is updated by each functional unit information F1 and each functional unit information F2 in the new network.
  • the in-vehicle ECU 112F includes the application 102F.
  • the update unit 270 is a communication path and a new network used for communication to be newly performed in the new network to which the in-vehicle ECU 112F is added, based on each function unit information F1 and each function unit information F2 in the updated database DB. Recognize the amount of communication in each communication path in.
  • FIG. 15 is a diagram showing another example of communication to be newly performed in the new network according to the embodiment of the present disclosure.
  • FIG. 15 shows a communication path used for communication to be newly performed in the new network to which the in-vehicle ECU 112F is added, and the amount of communication in each communication path in the new network.
  • the update unit 270 uses the relay device 200A and the relay device 200B among the communications of the communication paths R14 and R15 based on each function unit information F1 and each function unit information F2 in the updated database DB. It is recognized that the bandwidth usage between the relay device 200A and the relay device 200B increases by 20 by starting the communication of the communication path R15 that requires relay between them.
  • the bandwidth usage between the relay device 200A and the relay device 200B in the network 12 shown in FIG. 5 is 90.
  • the update unit 270 When the bandwidth usage between the relay device 200A and the relay device 200B increases by 20 by starting the communication of the communication path R15, the update unit 270 totals the bandwidth usage between the relay device 200A and the relay device 200B in the new network. Is 110, which exceeds the upper limit of 100, and therefore it is determined that communication using the communication path R15 cannot be performed.
  • the update unit 270 generates configuration information indicating various setting contents of the relay device 200 and the in-vehicle ECUs 111 and 112 for newly performing communication on the communication path R14 in the new network. Further, the update unit 270 registers the communication using the communication path R15 in the storage unit 260 as the hold communication.
  • the update unit 270 outputs the generated configuration information to the notification unit 280 and registers it in the storage unit 260.
  • FIG. 16 is a diagram showing another example of the configuration of the new network in the vehicle communication system according to the embodiment of the present disclosure.
  • the vehicle-mounted ECU 111B is deleted, and the database DB in the storage unit 260 of the relay device 200B is provided by each functional unit information F1 and each functional unit information F2 in the deleted new network. Suppose that is updated.
  • the update unit 270 uses the communication path and the new communication path used for the communication stopped in the new network in which the in-vehicle ECU 111B is deleted based on each function unit information F1 and each function unit information F2 in the updated database DB. Recognize the amount of communication in each communication path in the network.
  • FIG. 17 is a diagram showing an example of communication stopped in the new network according to the embodiment of the present disclosure.
  • FIG. 17 shows the communication path used for the communication stopped by the deletion of the vehicle-mounted ECU 111B in the new network in which the vehicle-mounted ECU 111B is deleted, and the amount of communication in each communication path in the new network.
  • the update unit 270 has communication paths R1 and R2 that require relay between the relay device 200A and the relay device 200B based on each function unit information F1 and each function unit information F2 in the updated database DB. It is recognized that the bandwidth usage between the relay device 200A and the relay device 200B is reduced by 30 by stopping the communication of the above.
  • the bandwidth usage between the relay device 200A and the relay device 200B in the network 12 shown in FIG. 14 is 90.
  • the update unit 270 reduces the bandwidth usage between the relay device 200A and the relay device 200B in the new network. Recognize that the total of is 60.
  • the update unit 270 is a new network. Since the total bandwidth usage between the relay device 200A and the relay device 200B in the above is 80, which is the upper limit value of 100 or less, it is determined that communication on the communication path R15 is possible.
  • the update unit 270 provides configuration information indicating various setting contents of the relay device 200 and the in-vehicle ECUs 111 and 112 for stopping the communication in the communication paths R1 and R2 and newly performing the communication in the communication path R15 in the new network. Generate.
  • the update unit 270 outputs the generated configuration information to the notification unit 280 and registers it in the storage unit 260.
  • Each device in the communication system includes a computer including a memory, and an arithmetic processing unit such as a CPU in the computer includes a program including a part or all of each step of the following flowchart and sequence. Read from the memory and execute. The programs of these plurality of devices can be installed from the outside. The programs of these plurality of devices are distributed in a state of being stored in a recording medium.
  • FIG. 18 is a flowchart defining an operation procedure when a relay device assigns functional unit information to another relay device in the vehicle communication system according to the embodiment of the present disclosure.
  • the relay device 200A listens for the functional unit information from the vehicle-mounted ECUs 111 and 112 in the network 12 (NO in step S102), and receives the functional unit information (YES in step S102). It is determined whether or not the functional unit information is the functional unit information F1 of the vehicle-mounted ECU 111 connected to the Ethernet cable 21 (step S104).
  • the relay device 200A registers the received functional unit information F1 in the database DB in the storage unit 260 (step S108).
  • the relay device 200A has received the functional unit.
  • the information F2 is converted into information that can be registered in the database DB of the functional unit information F1 in the storage unit 260 (step S106).
  • the relay device 200A registers the converted functional unit information F2 in the database DB (step S108).
  • the relay device 200A acquires each functional unit information F1 and each functional unit information F2 registered in the database DB, and transmits the acquired functional unit information F1 and each functional unit information F2 to the relay device 200B. (Step S110).
  • the relay device 200A listens for the functional unit information from the in-vehicle ECUs 111 and 112 in the network 12 (NO in step S102).
  • FIG. 19 is a diagram showing an example of a sequence of new network construction processing in the vehicle communication system according to the embodiment of the present disclosure.
  • the vehicle-mounted ECU 111A connected to the relay device 200A via the Ethernet cable 21 transmits its own functional unit information F1 to the relay device 200A (step S202).
  • the relay device 200A registers the functional unit information F1 received from the vehicle-mounted ECU 111A in the database DB in the storage unit 260 (step S204).
  • the in-vehicle ECU 112E newly added to the network 12 by being connected to the relay device 200A via the CAN bus 22 transmits the connection request information to the relay device 200A (step S206).
  • the relay device 200A receives the connection request information from the vehicle-mounted ECU 112E, detects the vehicle-mounted ECU 112E, and performs the authentication process of the vehicle-mounted ECU 112E (step S208).
  • the in-vehicle ECU 112E transmits its own functional unit information F2 to the relay device 200A (step S210).
  • the relay device 200A converts the functional unit information F2 received from the vehicle-mounted ECU 111E into information that can be registered in the database DB of the functional unit information F1 in the storage unit 260 (step S212).
  • the relay device 200A registers the converted functional unit information F2 in the database DB (step S214).
  • the relay device 200A acquires each functional unit information F1 and each functional unit information F2 registered in the database DB in its own storage unit 260, and obtains each functional unit information F1 and each functional unit information F2. It is transmitted to the relay device 200B (step S216).
  • the relay device 200B has each functional unit information F1 and each functional unit information F2 registered in the database DB in its own storage unit 260, and each functional unit information F1 and each functional unit information F2 received from the relay device 200A. Based on the above, the configuration information of the new network is generated (step S218).
  • the relay device 200B notifies the relay device 200A and the in-vehicle ECUs 111A and 112E of the setting contents based on the generated configuration information (step S220).
  • the relay device 200A and the in-vehicle ECUs 111A and 112E change various settings according to the setting contents notified from the relay device 200B (step S222).
  • the relay device 200B makes various setting changes based on the generated configuration information (step S224).
  • the relay devices 200A and 200B and the in-vehicle ECUs 111A and 112E in the new network communicate with each other according to the changed settings (step S226).
  • the conversion unit 240 is configured to perform the above-mentioned conversion processing examples 1, 2, 3 and 4 as the conversion processing, but the present invention is limited to this. It's not a thing.
  • the conversion unit 240 may be configured not to perform part or all of the conversion processing examples 1, 2, 3 and 4. Further, the conversion unit 240 may be configured to perform conversion processing other than the conversion processing examples 1, 2, 3 and 4.
  • the conversion unit 240 is configured to register the converted functional unit information F2 in the database DB, but the present invention is not limited to this.
  • the conversion unit 240 may be configured to transmit the converted functional unit information F2 to another relay device 200 via, for example, the relay unit 210 without registering it in the database DB.
  • the conversion unit 240 is configured to convert the functional unit information F2 into information that can be registered in the database DB in the storage unit 260 of the relay device 200.
  • the relay device 200 may be configured not to include a storage unit 260 including a database DB.
  • the conversion unit 240 may be configured to convert the functional unit information F2 into information that can be registered in the database in a device other than the relay device 200.
  • the conversion unit 240 deletes the functional unit information F2 registered in the database DB based on the functional unit information F2 acquired from the functional unit information frame FA2.
  • the conversion unit 240 may be configured to delete the functional unit information F2 registered in the database DB based on information other than the functional unit information F2.
  • the relay device 200B is configured to include an update unit 270 and a notification unit 280, but the present invention is not limited to this.
  • the relay device 200B may be configured not to include the update unit 270 and the notification unit 280.
  • the functional unit information F1 and the converted functional unit information F2 may be used for abnormality detection or failure detection of the vehicle-mounted ECUs 111 and 112 in the network 12.
  • a device other than the relay devices 200A and 200B may be configured to include an update unit 270 and a notification unit 280.
  • the communication required by the upper layer may not be realized due to the network configuration and restrictions of the lower layer.
  • the acquisition unit 230 is a functional unit that includes information on the network configuration of a layer lower than the application layer of the vehicle-mounted ECU 112 connected to the CAN bus 22.
  • Acquires functional unit information F2 which is information.
  • the conversion unit 240 converts the functional unit information F2 acquired by the acquisition unit 230 into information that can be registered in the database DB of the functional unit information F1 of one or more vehicle-mounted ECUs 111 connected to the Ethernet cable 21. Do.
  • the configuration is such that the functional unit information F2 of the vehicle-mounted ECU 112 connected to the CAN bus 22 is converted into information that can be registered in the database DB of the functional unit information F1 of the vehicle-mounted ECU 111 connected to the Ethernet cable 21. Therefore, the converted functional unit information F2 can be registered in the database DB, and the functional unit information F2 can be referred to and used in the same manner as the functional unit information F1.
  • the relay device 200 According to the embodiment of the present disclosure, information regarding the network configuration of the functional unit connected to different types of transmission lines can be easily used.
  • the conversion process changes the element E2 of the functional unit information F2 into the element E1 which is an element of the functional unit information F1 and has a definition different from the element E2. Perform the process that applies to.
  • the element E2 of the functional unit information F2 is read as the element E1 of the functional unit information F1, and the value of the element E2 in the functional unit information F2 is referred to and used as the value of the element E1 of the functional unit information F1. be able to.
  • the conversion process includes a process of converting the value of the element E2 of the functional unit information F2 according to a predetermined rule.
  • the value of the element E2 of the functional unit information F2 converted according to a predetermined rule can be referred to and used as the value of the element E1 of the functional unit information F1.
  • the conversion process includes a process of acquiring information corresponding to the functional unit information F2 or information based on the functional unit information F2 from the storage unit 260.
  • the information corresponding to the functional unit information F2 or the information based on the functional unit information F2 in the storage unit 260 can be referred to and used as the functional unit information F1.
  • the data size of the element E2 of the functional unit information F2 is the element of the functional unit information F1 and the element corresponding to the element E2. It includes a process of changing to the data size of E1.
  • the element E2 of the functional unit information F2 after changing the data size can be referred to and used as the element E1 of the functional unit information F1.
  • the conversion unit 240 registers the functional unit information F2 after the conversion process in the database DB based on the functional unit information F2 acquired by the acquisition unit 230. And at least one of the deletion of the functional part information F2 registered in the database DB is further performed.
  • the database DB can be flexibly updated based on the contents of the functional unit information F2.
  • the granting unit 250 is, based on the database DB, one or a plurality of vehicle-mounted ECUs 111 connected to the Ethernet cable 21 and one or a plurality of vehicle-mounted ECUs connected to the CAN 22.
  • the functional unit information F2 converted by the conversion unit 240 is added to the update unit 270 that updates the configuration information of the network 12 including the ECU 112.
  • the converted functional unit information F2 can be used for constructing a network in consideration of the network configuration and restrictions of the layer lower than the application layer.
  • the relay unit 210 performs the first communication which is the communication conforming to the first communication protocol and the second communication which is the communication conforming to the second communication protocol.
  • the conversion unit 240 generates network information used for the first communication based on the network information used for the second communication.
  • the relay device 200 According to the embodiment of the present disclosure, information regarding the network configuration of the functional unit connected to different types of transmission lines can be easily used.
  • the first communication protocol is Ethernet and the second communication protocol is CAN.
  • network information used for Ethernet-compliant communication and network information used for CAN-compliant communication can be registered in the same database. it can.
  • the vehicle 1 includes a relay device 200.
  • the communication method according to the embodiment of the present disclosure is a communication method in the relay device 200 that relays information transmitted and received between the vehicle-mounted ECU 111 connected to the Ethernet cable 21 and the vehicle-mounted ECU 112 connected to the CAN bus 22.
  • the relay device 200 acquires the functional unit information F2 including information on the network configuration of the layer lower than the application layer of the vehicle-mounted ECU 112 connected to the CAN bus 22.
  • the relay device 200 uses the acquired functional unit information F2 as one or more functions including information on the network configuration of one or more in-vehicle ECUs 111 connected to the Ethernet cable 21 in a layer lower than the application layer. Performs conversion processing to convert to information that can be registered in the database DB of part information F1.
  • Appendix 1 It is a relay device mounted on a vehicle.
  • a relay unit that relays information transmitted and received between the in-vehicle ECU connected to the Ethernet cable and the in-vehicle ECU connected to the CAN bus.
  • An acquisition unit for acquiring second functional unit information which is functional unit information including information on a network configuration of a layer lower than the application layer of the vehicle-mounted ECU connected to the CAN bus, and an acquisition unit.
  • the second function unit information acquired by the acquisition unit can be registered in a database of one or more first function unit information which is the function unit information of one or more of the vehicle-mounted ECUs connected to the Ethernet cable.
  • a relay device including a conversion unit that performs conversion processing so as to be.
  • Appendix 2 It is a communication method used in a relay device that performs a first communication which is a communication conforming to the first communication protocol and a second communication which is a communication conforming to the second communication protocol.
  • a communication method including a step of generating network information used for the first communication based on the received network information.
  • Computer A communication unit that performs first communication, which is communication conforming to the first communication protocol, and second communication, which is communication conforming to the second communication protocol.
  • a generator that generates network information used for the first communication based on the network information used for the second communication.
  • a communication program to function as.

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PCT/JP2020/018254 2019-08-01 2020-04-30 中継装置、車両、通信方法および通信プログラム Ceased WO2021019860A1 (ja)

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US17/615,174 US12362965B2 (en) 2019-08-01 2020-04-30 Relay device, vehicle, communication method, and communication program
JP2021536615A JP7464054B2 (ja) 2019-08-01 2020-04-30 中継装置、通信方法および通信プログラム
CN202310180300.1A CN116032687A (zh) 2019-08-01 2020-04-30 中继装置、通信方法以及计算机可读记录介质
CN202080039657.2A CN113892247A (zh) 2019-08-01 2020-04-30 中继装置、车辆、通信方法以及通信程序
JP2024049397A JP7632720B2 (ja) 2019-08-01 2024-03-26 中継装置、通信方法および通信プログラム
US19/214,569 US20250300856A1 (en) 2019-08-01 2025-05-21 Relay device, vehicle, communication method, and communication program

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117203949A (zh) * 2021-04-28 2023-12-08 株式会社自动网络技术研究所 车载装置、信息处理方法及程序
WO2025134789A1 (ja) * 2023-12-20 2025-06-26 住友電気工業株式会社 車両管理システムおよび車両管理方法
WO2025134784A1 (ja) * 2023-12-20 2025-06-26 住友電気工業株式会社 車両管理システムおよび車両管理方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114270893A (zh) * 2019-10-25 2022-04-01 住友电气工业株式会社 管理装置、车载系统、车辆、通信管理方法及通信管理程序
JP7468321B2 (ja) * 2020-12-03 2024-04-16 株式会社デンソー 通信制御装置、通信制御方法、及び中継サーバ
EP4164199A1 (en) * 2021-10-06 2023-04-12 Cetitec GmbH Vehicle communication system
US20250007935A1 (en) * 2021-11-25 2025-01-02 Nippon Telegraph And Telephone Corporation Monitoring device, monitoring method, and monitoring program
US12250274B2 (en) * 2023-03-29 2025-03-11 Amazon Technologies, Inc. Vehicle signal relay service
US12088672B1 (en) * 2023-06-12 2024-09-10 Infineon Technologies Ag Efficient and secured access to in-vehicle end nodes across a vehicle fleet
US12439361B2 (en) * 2023-07-06 2025-10-07 Charter Communications Operating, Llc Automated relay registration in a citizens broadband radio service (CBRS) system
US20250039255A1 (en) * 2023-07-27 2025-01-30 Research & Business Foundation Sungkyunkwan University Device and method for merging data frames for vehicle network system, and storage medium storing instructions to perform method for merging data frames

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017005617A (ja) * 2015-06-15 2017-01-05 株式会社デンソー 中継装置、電子装置および通信システム
JP2018117254A (ja) * 2017-01-18 2018-07-26 パナソニックＩｐマネジメント株式会社 監視装置、監視方法およびコンピュータプログラム

Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0897821A (ja) 1994-09-21 1996-04-12 Hitachi Ltd 無線データ通信方法および装置ならびに無線データ通信システム
JP3784269B2 (ja) 2001-04-10 2006-06-07 アライドテレシスホールディングス株式会社 ネットワーク管理装置、ネットワーク管理プログラム、ネットワーク管理方法、及びコンピュータネットワークシステム
JP4942261B2 (ja) 2001-07-31 2012-05-30 株式会社デンソー 車両用中継装置、及び、車内通信システム
JP2003244185A (ja) 2002-02-18 2003-08-29 Matsushita Electric Ind Co Ltd Ｖｌａｎ及びｖｌａｎフレームスイッチング装置
JP2003124999A (ja) * 2002-07-15 2003-04-25 Matsushita Graphic Communication Systems Inc ネットワークサーバ装置および通信端末能力交換方法
US20070185624A1 (en) 2006-02-07 2007-08-09 General Motors Corporation Method for remote reprogramming of vehicle flash memory
JP2008059450A (ja) 2006-09-01 2008-03-13 Denso Corp 車両情報書換えシステム
JP4791301B2 (ja) * 2006-09-13 2011-10-12 株式会社オートネットワーク技術研究所 車載ｌａｎシステム
JP5320095B2 (ja) 2009-02-03 2013-10-23 パナソニック株式会社 ネットワークシステム
JP5588220B2 (ja) 2009-05-22 2014-09-10 コイト電工株式会社 交信用データ付与方法及び装置、移動体情報収集システム及び該システムの移動体上装置、並びに、車両編成ネットワークシステム及び該システムの車上装置
JP5334693B2 (ja) 2009-06-04 2013-11-06 アライドテレシスホールディングス株式会社 ネットワーク管理方法、ネットワーク管理プログラム、ネットワークシステム及び中継機器
JP5589721B2 (ja) * 2010-09-27 2014-09-17 トヨタ自動車株式会社 車両用情報処理装置
US8543280B2 (en) 2011-04-29 2013-09-24 Toyota Motor Engineering & Manufacturing North America, Inc. Collaborative multi-agent vehicle fault diagnostic system and associated methodology
JP5625217B2 (ja) 2011-07-04 2014-11-19 アラクサラネットワークス株式会社 ネットワーク管理システム、及び管理計算機
CN102333118B (zh) 2011-10-08 2013-06-12 常熟理工学院 一种车载网络IPv6地址自动配置的实现方法
JP5729337B2 (ja) 2012-03-21 2015-06-03 株式会社デンソー 車両用認証装置、及び車両用認証システム
WO2013161873A1 (ja) 2012-04-27 2013-10-31 株式会社フジクラ 通信システム
JP5672275B2 (ja) 2012-08-28 2015-02-18 株式会社デンソー ネットワークシステム
US9305412B2 (en) 2013-11-22 2016-04-05 Volkswagen Ag Apparatus, system and method for vehicle authentication management and reporting
JP6126980B2 (ja) * 2013-12-12 2017-05-10 日立オートモティブシステムズ株式会社 ネットワーク装置およびネットワークシステム
JP6618480B2 (ja) 2014-11-12 2019-12-11 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 更新管理方法、更新管理システム及び制御プログラム
EP3605943B1 (en) 2014-11-13 2021-02-17 Panasonic Intellectual Property Corporation of America Key management method, vehicle-mounted network system, and key management device
DE102014224944A1 (de) 2014-12-04 2016-06-09 Continental Automotive Gmbh Verfahren und Steuergerät zur Übertragung sicherheitsrelevanter Daten in einem Kraftfahrzeug mittels eines Ethernet-Standards
JP2016127299A (ja) 2014-12-26 2016-07-11 スタビリティ株式会社 中継装置及びネットワーク構築方法
JP6595885B2 (ja) 2015-01-20 2019-10-23 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 不正対処方法及び電子制御ユニット
JP6531420B2 (ja) 2015-02-16 2019-06-19 日本電気株式会社 制御装置、通信システム、仮想ネットワーク機能の管理方法及びプログラム
JP6477281B2 (ja) 2015-06-17 2019-03-06 株式会社オートネットワーク技術研究所 車載中継装置、車載通信システム及び中継プログラム
MY192955A (en) 2015-08-20 2022-09-19 Huawei Tech Co Ltd Method and apparatus for probing fronthaul topology
JP6723829B2 (ja) 2015-09-14 2020-07-15 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ ゲートウェイ装置、ファームウェア更新方法及び制御プログラム
JP6783174B2 (ja) 2016-05-27 2020-11-11 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ ネットワークハブ、転送方法及び車載ネットワークシステム
JP7043736B2 (ja) 2016-06-02 2022-03-30 株式会社デンソー 車両用電子制御装置及び車両用サービス管理システム
US9865112B2 (en) 2016-06-03 2018-01-09 Volkswagen Aktiengesellschaft Apparatus, system and method for dynamic identification for vehicle access
US20180012197A1 (en) 2016-07-07 2018-01-11 NextEv USA, Inc. Battery exchange licensing program based on state of charge of battery pack
JP6849528B2 (ja) 2016-07-28 2021-03-24 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ フレーム伝送阻止装置、フレーム伝送阻止方法及び車載ネットワークシステム
DE102017120505A1 (de) * 2016-09-12 2018-03-15 Hyundai Motor Company System zur Verifikation einer unregistrierten Vorrichtung basierend auf Informationen eines Ethernet-Switchs und Verfahren für dasselbige
JP2018074261A (ja) * 2016-10-25 2018-05-10 富士通株式会社 パケット中継装置及びパケット中継方法
JP2018098684A (ja) * 2016-12-15 2018-06-21 住友電気工業株式会社 スイッチ装置、通信制御方法および通信制御プログラム
JP6406365B2 (ja) * 2017-01-06 2018-10-17 住友電気工業株式会社 スイッチ装置、通信制御方法および通信制御プログラム
WO2018135098A1 (ja) 2017-01-18 2018-07-26 パナソニックＩｐマネジメント株式会社 監視装置、監視方法およびコンピュータプログラム
JP6693450B2 (ja) 2017-03-14 2020-05-13 株式会社デンソー 情報管理システム、車載装置、サーバ、及びルーティングテーブル変更方法
CN106961437A (zh) 2017-03-24 2017-07-18 华东师范大学 Can和以太网络的混合网络网关网管装置及其交换方法
JP6812887B2 (ja) 2017-03-31 2021-01-13 住友電気工業株式会社 スイッチ装置、通信制御方法および通信制御プログラム
JP2018192876A (ja) 2017-05-16 2018-12-06 トヨタ自動車株式会社 運転支援装置
JP6766766B2 (ja) 2017-07-10 2020-10-14 住友電気工業株式会社 認証制御装置、認証制御方法および認証制御プログラム
KR102364656B1 (ko) 2017-08-02 2022-02-21 한국전자통신연구원 Hmac 기반의 동적 can id 생성 및 운용 장치, 및 그 방법
JP6805097B2 (ja) * 2017-08-25 2020-12-23 日本電信電話株式会社 リソース確保装置、リソース確保方法及びコンピュータプログラム
JP7000842B2 (ja) 2017-12-21 2022-01-19 トヨタ自動車株式会社 情報処理システム、鍵情報管理装置、鍵情報管理方法、鍵情報管理プログラム
CN108881247B (zh) 2018-06-27 2021-05-18 北京东土军悦科技有限公司 报文转换方法、装置、网关设备及存储介质
US10911949B2 (en) 2018-07-23 2021-02-02 Byton Limited Systems and methods for a vehicle authenticating and enrolling a wireless device
KR102756362B1 (ko) 2019-05-09 2025-01-20 엘지전자 주식회사 인증 레벨에 기반한 지능형 서비스 제공 방법 및 장치
KR102789249B1 (ko) * 2019-05-14 2025-04-01 현대자동차주식회사 게이트웨이 장치 및 그 제어방법

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017005617A (ja) * 2015-06-15 2017-01-05 株式会社デンソー 中継装置、電子装置および通信システム
JP2018117254A (ja) * 2017-01-18 2018-07-26 パナソニックＩｐマネジメント株式会社 監視装置、監視方法およびコンピュータプログラム

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117203949A (zh) * 2021-04-28 2023-12-08 株式会社自动网络技术研究所 车载装置、信息处理方法及程序
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