WO2024095681A1 - Dispositif de réglage et équipement embarqué - Google Patents

Dispositif de réglage et équipement embarqué Download PDF

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Publication number
WO2024095681A1
WO2024095681A1 PCT/JP2023/036309 JP2023036309W WO2024095681A1 WO 2024095681 A1 WO2024095681 A1 WO 2024095681A1 JP 2023036309 W JP2023036309 W JP 2023036309W WO 2024095681 A1 WO2024095681 A1 WO 2024095681A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
communication
setting
information
vehicle device
Prior art date
Application number
PCT/JP2023/036309
Other languages
English (en)
Japanese (ja)
Inventor
康広 山崎
英樹 後藤
生祥 大武
祐輔 山本
遼 山根
賢太 小方
達也 泉
秀幸 田中
ダルマワン 呉
慶剛 菊地
博史 浦山
Original Assignee
トヨタ自動車株式会社
住友電気工業株式会社
株式会社オートネットワーク技術研究所
住友電装株式会社
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 トヨタ自動車株式会社, 住友電気工業株式会社, 株式会社オートネットワーク技術研究所, 住友電装株式会社 filed Critical トヨタ自動車株式会社
Publication of WO2024095681A1 publication Critical patent/WO2024095681A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/42—Centralised routing

Definitions

  • This disclosure relates to a setting device and an in-vehicle device.
  • Patent Document 1 describes an SDN (Software Defined Networking) system that can change the configuration and settings of an in-vehicle network without changing the hardware configuration by controlling communication devices with software.
  • the SDN system includes multiple SDN switches and an SDN controller that updates the communication settings of each SDN switch.
  • the above-mentioned SDN system can be used for in-vehicle networks. Meanwhile, new in-vehicle devices may be added to the in-vehicle network in order to add functions, etc.
  • the configuration of the in-vehicle network changes due to the connection of new in-vehicle devices, the settings of the SDN switch must be updated appropriately.
  • a setting device that, when an in-vehicle device performing frame communication is connected to an in-vehicle network provided with multiple communication devices performing frame communication, updates the communication settings of the multiple communication devices based on setting information acquired from the in-vehicle device.
  • an in-vehicle device is provided that is connected to an in-vehicle network in which multiple communication devices that perform frame communication are provided, and that performs frame communication.
  • the in-vehicle device has a storage unit that stores setting information that is information on the communication settings of the multiple communication devices.
  • a setting device that, when an in-vehicle device that performs message communication is connected to an in-vehicle network provided with multiple communication devices that perform message communication, updates the communication settings of the multiple communication devices based on setting information acquired from the in-vehicle device.
  • an in-vehicle device is provided that is connected to an in-vehicle network in which multiple communication devices that perform message communication are provided, and that performs the message communication, and that has a memory unit that stores setting information that is information on the communication settings of the multiple communication devices.
  • FIG. 1 is a diagram illustrating a schematic configuration of an in-vehicle network in which a setting device and an in-vehicle device according to an embodiment are provided;
  • FIG. 2 is a diagram illustrating a schematic configuration of an in-vehicle device.
  • FIG. 11 is a sequence diagram showing an example of an update operation of communication settings of an in-vehicle network.
  • 13 is a sequence diagram showing another example of the operation of updating the setting of the communication device in the setting device.
  • the in-vehicle network 10 installed in a vehicle 11 includes a plurality of SDN switches 12.
  • the SDN switches 12 are communication devices that perform frame forwarding.
  • the SDN switches 12 are connected to each other through a network line 13.
  • the SDN switches 12 are connected to in-vehicle devices 14, respectively.
  • the in-vehicle devices 14 are devices that are mounted on the vehicle 11 and transmit and receive frames via the in-vehicle network 10.
  • the in-vehicle devices 14 include various ECUs (Electronic Control Units), sensors, car navigation systems, and the like mounted on the vehicle 11.
  • the SDN switches 12 and the in-vehicle devices 14 are communication devices that perform frame communication.
  • the frame communication here refers to performing at least one of frame forwarding, frame transmission, and frame reception.
  • An SDN controller 15 is connected to one of the SDN switches 12.
  • the SDN controller 15 is a setting device that controls the communication settings of each SDN switch 12.
  • the communication settings define the rules for frame forwarding, such as the communication paths for frames between the in-vehicle devices 14, restrictions on the communication paths for security purposes, and adjustments to the forwarding order and amount of forwarding for quality of service (QoS).
  • the communication settings include a routing table that specifies the forwarding destination of frames for each destination.
  • the SDN controller 15 is also connected to a display device 16 capable of outputting images.
  • An example of the display device 16 is the display of a car navigation system.
  • a device capable of input operations such as touch operations in addition to image output is used as the display device 16.
  • a wireless communication device 17 is also connected to the SDN controller 15.
  • the wireless communication device 17 establishes data communication with a data center 19 outside the vehicle via a wireless communication network 18 such as a mobile communication network.
  • the data center 19 has a database that stores setting information of the SDN switches 12 in the in-vehicle networks 10 of various configurations.
  • the display device 16 and the wireless communication device 17 are directly connected to the SDN controller 15, but they may also be connected to the SDN controller 15 via the in-vehicle network 10.
  • a new in-vehicle device 14 may be connected to the in-vehicle network 10.
  • the connection of the new in-vehicle device 14 to the in-vehicle network 10 here includes the following two cases in addition to the case where the new in-vehicle device 14 is additionally installed in the vehicle 11.
  • in-vehicle devices 14 for implementing functions that are prohibited by regulations may be installed in the vehicle 11 in a disabled state in advance, in anticipation of future changes to regulations.
  • In-vehicle devices in a disabled state are treated by the in-vehicle network 10 as not existing, even if they are physically connected to the in-vehicle network 10. Then, when such in-vehicle devices are activated, they are treated as newly connected to the in-vehicle network 10.
  • a connection by activating an in-vehicle device 14 installed in a disabled state is also included in the connection of a new in-vehicle device 14 to the in-vehicle network 10.
  • a software update may add new functions to the in-vehicle device 14 already connected to the in-vehicle network 10.
  • the addition of functions through a software update may require updating the communication settings of each SDN switch 12.
  • the in-vehicle device 14 undergoing a software update is temporarily disconnected from the in-vehicle network 10.
  • the in-vehicle device 14 is reconnected to the in-vehicle network 10.
  • such reconnection after a software update is also included in the connection of the new in-vehicle device 14 to the in-vehicle network 10.
  • the setting information stored in the memory 23 is also updated.
  • the communication settings of each SDN switch 12 of the in-vehicle network 10 may be changed from the settings at the time of manufacture.
  • the in-vehicle device 14 that is expected to be newly connected to the in-vehicle network 10 after the shipment of the vehicle 11 is configured as follows.
  • the in-vehicle device 14 that is newly connected to the in-vehicle network 10 is referred to as a new in-vehicle device 14A.
  • the new in-vehicle device 14A is connected to the in-vehicle network 10 via the network connection unit 20.
  • the new in-vehicle device 14A then performs frame communication via the network connection unit 20.
  • the network connection unit 20 of the new in-vehicle device 14A is provided with a connector 21, a CPU 22, and a memory 23.
  • the connector 21 is connected to a communication wiring 21A for connecting the SDN switch 12 and the new in-vehicle device 14A.
  • the CPU 22 executes processing related to the reception and transmission of frames of the new in-vehicle device 14A.
  • the memory 23 stores programs and data used in the processing of the CPU 22.
  • the memory 23 also stores setting information of the in-vehicle network 10 to which the new in-vehicle device 14A is connected.
  • the setting information is information indicating the communication setting of each SDN switch 12 in a state in which the new in-vehicle device 14A is connected to the in-vehicle network 10.
  • the memory 23 corresponds to the storage unit of the new in-vehicle device 14A.
  • the in-vehicle device 14 is set with identification information (ID) for each model.
  • ID identification information
  • the memory 23 of the new in-vehicle device 14A also stores its own identification information in advance.
  • One example of the new in-vehicle device 14A is an ECU or a sensor equipped with the network connection unit 20 in FIG. 2.
  • Another example of the new in-vehicle device 14A is a unit having one or more ECUs, one or more sensors, and an SDN switch to which they are connected. In that case, one of the constituent devices of the unit is configured to have the network connection unit 20.
  • Figure 3 shows an example of the operation of each device related to updating the communication settings of the in-vehicle network 10.
  • Figure 3 shows the operation that occurs after a new in-vehicle device 14A is physically connected to one of the SDN switches 12 installed in the in-vehicle network 10 and a connection is established between the SDN switch 12 and the new in-vehicle device 14A.
  • Figure 3 shows two of the SDN switches 12 installed in the in-vehicle network 10 and one of the in-vehicle devices 14 already connected to the in-vehicle network 10 as representatives of each.
  • a new in-vehicle device 14A When a new in-vehicle device 14A is connected to the in-vehicle network 10, it transmits the identification information (ID) and setting information stored in its memory 23 to the SDN controller 15 (S1).
  • the SDN controller 15 stores the identification information of each in-vehicle device 14 already connected to the in-vehicle network 10.
  • the SDN controller 15 then recognizes the connection of the new in-vehicle device 14A to the in-vehicle network 10 by receiving new identification information that has not been stored.
  • the SDN controller 15 then instructs each SDN switch 12 installed in the in-vehicle network 10 to update the communication settings based on the received setting information (S2).
  • Each SDN switch 12 updates the communication settings based on the instruction from the SDN controller 15 (S3).
  • each SDN switch 12 completes the update, it notifies the SDN controller 15 of the completion (S4).
  • the SDN controller 15 receives notification of update completion from all SDN switches 12, it notifies each connected in-vehicle device 14 and the new in-vehicle device 14A that the update of the communication settings of the entire in-vehicle network 10 has been completed (S5).
  • each connected in-vehicle device 14 starts frame communication (S6).
  • the new in-vehicle device 14A is enabled in response to the notification and starts frame communication (S6).
  • FIG. 4 shows the operation of each device related to updating the communication settings of the in-vehicle network 10 in such a case.
  • the new in-vehicle device 14A does not store any setting information.
  • the new in-vehicle device 14A transmits only its own identification information to the SDN controller 15 (S10).
  • the SDN controller 15 recognizes that it has not been able to obtain appropriate configuration information from the new in-vehicle device 14A because it has only received the identification information and not the configuration information (S11). If the new in-vehicle device 14A transmits configuration information that is not compatible with the configuration of the in-vehicle network 10, the SDN controller 15 recognizes from the contents of the received configuration information that it has not been able to obtain appropriate configuration information.
  • the SDN controller 15 When the SDN controller 15 recognizes that it has been unable to obtain setting information suitable for the in-vehicle network 10, it instructs the display device 16 to output the image below.
  • the image that is instructed to be output here notifies the user of the occurrence of an update error in the communication settings of the in-vehicle network 10, and is an image for confirming whether or not it is possible to obtain setting information from outside the vehicle.
  • the display device 16 outputs the image instructed by the SDN controller 15 (S13). Then, when an operation is performed to permit the acquisition of setting information from outside the vehicle (S14), the display device 16 notifies the SDN controller 15 that permission has been granted.
  • the SDN controller 15 requests the data center 19 outside the vehicle to send configuration information (S15). At this time, the SDN controller 15 sends information indicating the configuration of the in-vehicle network 10 to which it is connected, and identification information of the new in-vehicle device 14A to the data center 19. The data center 19 sends the configuration information selected based on the received information to the SDN controller 15 (S16). Once the SDN controller 15 has obtained the appropriate configuration information in this way, the communication settings of the in-vehicle network 10 are updated through S2 to S6 in Figure 2.
  • the new in-vehicle device 14A When the new in-vehicle device 14A is connected to the in-vehicle network 10, it transmits the setting information stored in the memory 23 to the SDN controller 15.
  • the setting information includes information on the setting of the frame transport route, the setting of the service quality of the frame transport, and the setting of the communication route restriction for security.
  • the SDN controller 15 updates the communication setting of each SDN switch 12 installed in the in-vehicle network 10 based on the received setting information. As a result, the setting of the frame transport route, the service quality, and the communication route restriction of each SDN switch 12 is updated.
  • the SDN controller 15 confirms that the update of the communication setting of all the SDN switches 12 is completed, it notifies each in-vehicle device 14 already connected to the in-vehicle network 10 and the new in-vehicle device 14A of the completion of the update.
  • each in-vehicle device 14 and the new in-vehicle device 14A receive this notification, they start frame notification.
  • the SDN controller 15 determines whether the SDN switch 12 has a communication setting or not. If the SDN controller 15 is unable to obtain appropriate setting information from the new in-vehicle device 14A, it displays an error on the display device 16. In this case, the SDN controller 15 also obtains setting information from a data center 19 outside the vehicle and updates the communication settings of each SDN switch 12.
  • the present embodiment described above provides the following advantageous effects.
  • the following setting information is stored in advance in the memory 23 of the new in-vehicle device 14A, which is an in-vehicle device 14 that is newly connected to the in-vehicle network 10.
  • the setting information is information that indicates appropriate communication settings of each SDN switch 12 in a state in which the new in-vehicle device 14A is connected to the in-vehicle network 10.
  • the SDN controller 15 acquires the setting information from the new in-vehicle device 14A and updates the communication settings of each SDN switch 12 based on the acquired setting information. Therefore, the communication settings of each SDN switch 12 can be updated without externally instructing the communication settings to be updated.
  • the SDN controller 15 can update the communication settings of each SDN switch 12 when the new in-vehicle device 14A is connected to the in-vehicle network 10.
  • the setting information that the SDN controller 15 acquires from the new in-vehicle device 14A includes information on setting the quality of service for frame communication and information on setting communication path restrictions for security. Therefore, in response to changes in the configuration of the in-vehicle network 10 due to the connection of the new in-vehicle device 14A, advanced communication control such as setting the quality of service for frame transport and setting communication path restrictions for security can be implemented.
  • the SDN controller 15 updates the communication settings of each SDN switch 12 in the above manner when enabling an in-vehicle device 14 that was installed in a disabled state, or when reconnecting the in-vehicle device 14 after a software update. Therefore, the communication settings of the SDN switch 12 can be appropriately updated in response to the activation of the in-vehicle device 14 or a software update.
  • the SDN controller 15 If the SDN controller 15 is unable to obtain appropriate setting information from the new in-vehicle device 14A, it displays an error on the display device 16 mounted on the vehicle 11. This allows the operator connecting the new in-vehicle device 14A to accurately grasp the situation and respond accordingly.
  • the SDN controller 15 If the SDN controller 15 is unable to obtain appropriate setting information from the new in-vehicle device 14A, the SDN controller 15 obtains the setting information from the data center 19 outside the vehicle. Therefore, even if appropriate setting information is not stored in the new in-vehicle device 14A, the communication settings of each SDN switch 12 can be appropriately updated.
  • Acquiring setting information from the data center 19 outside the vehicle may take longer than acquiring the setting information from the new in-vehicle device 14A.
  • the SDN controller 15 acquires setting information from the data center 19 outside the vehicle only after obtaining permission from the operator. This allows the communication settings of each SDN switch 12 to be updated at an appropriate time when there is sufficient time.
  • the SDN controller 15 completes updating the communication settings of the SDN switch 12 based on the setting information, it notifies the other in-vehicle devices 14 already connected to the in-vehicle network 10 of the completion of the communication setting update. Therefore, the other in-vehicle devices 14 already connected to the in-vehicle network 10 can confirm the time when the communication setting update is completed and frame communication can be started.
  • the SDN controller 15 When the SDN controller 15 has completed updating the communication settings of the SDN switch 12 based on the setting information, it notifies the new in-vehicle device 14A that the communication settings have been updated. The new in-vehicle device 14A then waits for the notification that the update has been completed and starts frame communication. Therefore, the new in-vehicle device 14A connected to the in-vehicle network 10 can be enabled when the communication settings have been updated and can start frame communication.
  • the setting information may be obtained from the data center 19 via a vehicle diagnosis terminal, such as a diagnostic tool, that is connected by wire to the in-vehicle network 10.
  • a vehicle diagnosis terminal such as a diagnostic tool
  • the wireless communication device 17 may be omitted.
  • An error may be displayed on a display device outside the vehicle, such as a terminal for fault diagnosis. Also, a terminal outside the vehicle may be used to check whether or not the setting information can be obtained from the data center 19.
  • the SDN controller 15 may obtain the setting information from the data center 19 without displaying an error on the display device 16 or performing a confirmation operation on the display device 16 . If appropriate setting information cannot be obtained from the new in-vehicle device 14A, the SDN controller 15 may not obtain setting information from the data center 19 outside the vehicle, but may update the communication settings in another manner, for example manually.
  • the SDN controller 15 may notify only the connected in-vehicle device 14 or only the new in-vehicle device 14A of the completion of the update of the communication settings of the SDN switch 12. Also, the SDN controller 15 may not notify either the connected in-vehicle device 14 or the new in-vehicle device 14A of the completion of the update of the communication settings.
  • the new in-vehicle device 14 ⁇ /b>A may transmit setting information in response to a request from the SDN controller 15 .
  • the new in-vehicle device 14A may transmit only the setting information to the SDN controller 15 without transmitting the identification information.
  • the configuration of the in-vehicle network 10, such as the number of SDN switches 12 and the network topology, is not limited to that illustrated in FIG. 1 and may be changed as appropriate.
  • Some or all of the multiple SDN switches 12 installed in the in-vehicle network 10 may be replaced with other communication devices that forward frames, such as routers, and that can update communication settings using software.
  • the in-vehicle network 10 is configured so that the in-vehicle devices 14 communicate at the data link layer (L2).
  • the in-vehicle network 10 may be configured so that message communication between the in-vehicle devices 14 is performed at a layer other than the data link layer.
  • the SDN controller 15 in the above embodiment may be configured as a device that updates the communication settings of each communication device in an in-vehicle network provided with multiple communication devices that perform message communication.
  • the SDN controller 15 may update the communication settings of each of the already connected in-vehicle devices 14 along with the communication settings of the SDN switch 12.
  • the SDN controller 15 may be configured in any manner that functions as a setting device that updates the communication settings of multiple communication devices installed in the in-vehicle network 10.
  • the setting device that updates the communication settings of the communication devices may be configured as a circuit (circuitry) including one or more processors that execute various processes according to a computer program (software).
  • the setting device may be configured as a circuit including one or more dedicated hardware circuits, such as application specific integrated circuits (ASICs), that execute at least some of the various processes, or a combination thereof.
  • the processor includes a CPU and memory such as RAM and ROM.
  • the memory stores program code or instructions configured to cause the CPU to execute processes.
  • the memory i.e., computer-readable medium, includes any available medium that can be accessed by a general-purpose or dedicated computer.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Stored Programmes (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Abstract

Lorsqu'un nouvel équipement embarqué (14A) est connecté à un réseau embarqué, un contrôleur SDN (15) met à jour le réglage de communication de chaque commutateur SDN (12) sur la base d'informations de réglage acquises à partir du nouvel équipement embarqué (14A).
PCT/JP2023/036309 2022-11-01 2023-10-05 Dispositif de réglage et équipement embarqué WO2024095681A1 (fr)

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JP2022-175498 2022-11-01
JP2022175498A JP2024066144A (ja) 2022-11-01 2022-11-01 設定装置及び車載機器

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013128648A1 (fr) * 2012-03-02 2013-09-06 三菱電機株式会社 Dispositif de traitement d'informations, unité de commande électronique, procédé de traitement d'informations et programme
JP2017011487A (ja) * 2015-06-22 2017-01-12 富士通株式会社 情報処理システム、情報処理システムの制御プログラム及び情報処理システムの制御方法
WO2020183954A1 (fr) * 2019-03-13 2020-09-17 日本電気株式会社 Dispositif de commande de véhicule, procédé de commande véhicule et support non transitoire lisible par ordinateur dans lequel est stocké un programme de commande de véhicule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013128648A1 (fr) * 2012-03-02 2013-09-06 三菱電機株式会社 Dispositif de traitement d'informations, unité de commande électronique, procédé de traitement d'informations et programme
JP2017011487A (ja) * 2015-06-22 2017-01-12 富士通株式会社 情報処理システム、情報処理システムの制御プログラム及び情報処理システムの制御方法
WO2020183954A1 (fr) * 2019-03-13 2020-09-17 日本電気株式会社 Dispositif de commande de véhicule, procédé de commande véhicule et support non transitoire lisible par ordinateur dans lequel est stocké un programme de commande de véhicule

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