WO2019172154A1 - 保存装置、通信システム、保存方法及びコンピュータプログラム - Google Patents

保存装置、通信システム、保存方法及びコンピュータプログラム Download PDF

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Publication number
WO2019172154A1
WO2019172154A1 PCT/JP2019/008265 JP2019008265W WO2019172154A1 WO 2019172154 A1 WO2019172154 A1 WO 2019172154A1 JP 2019008265 W JP2019008265 W JP 2019008265W WO 2019172154 A1 WO2019172154 A1 WO 2019172154A1
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WO
WIPO (PCT)
Prior art keywords
input
partial data
data
unit
control program
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/JP2019/008265
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English (en)
French (fr)
Japanese (ja)
Inventor
哲矢 野田
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 CN201980013922.7A priority Critical patent/CN111742293B/zh
Priority to CN202410720259.7A priority patent/CN118760460A/zh
Priority to US16/978,028 priority patent/US12071082B2/en
Publication of WO2019172154A1 publication Critical patent/WO2019172154A1/ja
Anticipated expiration legal-status Critical
Priority to US18/783,730 priority patent/US20240375599A1/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]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H04L12/40045—Details regarding the feeding of energy to the node from the bus
    • 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
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/0652—Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G06F8/658—Incremental updates; Differential updates
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/70—Software maintenance or management
    • G06F8/71—Version control; Configuration management
    • 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
    • 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
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle

Definitions

  • the present disclosure relates to a storage device, a communication system, a storage method, and a computer program.
  • This application claims priority based on Japanese Patent Application No. 2018-038859 filed on Mar. 5, 2018, and incorporates all the description content described in the above Japanese application.
  • Patent Document 1 discloses a vehicle processing apparatus that executes processing by executing a control program. This processing apparatus is detachably connected to the diagnostic tool. Update data used for updating the control program is input from the diagnosis tool, and update data received wirelessly is input.
  • Patent Document 1 prohibits input of update data received wirelessly while update data is being input from the diagnostic tool, and performs a diagnosis while update data received wirelessly is being input. Prohibit input of update data from the tool.
  • the control program is updated using the update data input from the diagnosis tool or the update data received wirelessly.
  • a storage device is detachably connected to an external device, and a first input unit to which partial data that is part of update data used for updating a control program is input from the external device; A second input unit that receives the partial data received wirelessly; a storage unit that stores the partial data; and the second input unit that receives the partial data.
  • a communication system includes: a storage device that stores partial data that is a part of update data used for updating a control program; a storage device that is connected to the storage device and executes the control program; The storage device is detachably connected to an external device, and the partial data is input from the external device, and the partial data received wirelessly is input. And when the partial data is input to the second input unit, the partial data input to the second input unit is stored in the storage unit. If the partial data is input to the first input unit while the partial data is repeatedly input to the second input unit, the partial data input to the second input unit Save stop comprises a storage unit for storing partial data input to the first input unit in the storage unit, and a transmission unit that transmits the partial data to the processor.
  • the storage method includes a step of storing the received partial data when the partial data that is a part of the update data used for updating the control program is received wirelessly, and the partial data When the partial data is input by wire while wireless is repeatedly received, the step of stopping the storage of the partial data received wirelessly and while the partial data is repeatedly received wirelessly And storing the partial data input by wire when the partial data is input by wire.
  • the computer program stores, in a computer, partial data that is part of update data used for updating the control program, when the partial data is received wirelessly;
  • the step of stopping storing the partial data received wirelessly, and the partial data is repeatedly received wirelessly In the meantime, when the partial data is input by wire, the step of storing the partial data received by wire is executed.
  • the present disclosure can be realized not only as a storage device including such a characteristic processing unit, but also as a storage method having such characteristic processing as a step, or causing a computer to execute such a step. Or as a computer program. Further, the present disclosure can be realized as a semiconductor integrated circuit that realizes part or all of the storage device, or can be realized as a communication system including the storage device.
  • 1 is a block diagram illustrating a main configuration of a communication system according to a first embodiment. It is a block diagram which shows the principal part structure of a relay apparatus. It is a flowchart which shows the procedure of the 1st update data storage process which concerns on a control program. It is a flowchart which shows the procedure of the 2nd update data storage process which concerns on a control program. It is a sequence diagram which shows the example of operation
  • a diagnosis tool is operated by a dealer.
  • the update of the control program using the update data input from the diagnosis tool is likely to be performed by a dealer, for example, in order to search for the cause of the processing failure at a store or a factory where the vehicle is brought in.
  • the update of the control program using the update data received wirelessly is highly likely to be performed at an unspecified location with the permission of the vehicle occupant, for example.
  • the update of the control program using the update data input from the diagnostic tool is more important than the update of the control program using the update data received wirelessly.
  • the dealer updates the control program using the diagnostic tool
  • the control program is updated using the update data received wirelessly.
  • the dealer needs to wait until the update data received wirelessly is input and the update of the control program is completed. After the update of the control program is completed, the dealer updates the control program again using the diagnosis tool. In this case, unnecessary update of the control program is performed using the update data received wirelessly.
  • an object of the present invention is to provide a storage device, a communication system, a storage method, and a computer program that can prevent an unnecessary update of a control program using update data received wirelessly.
  • a storage device is detachably connected to an external device, and a first input in which partial data that is part of update data used for updating a control program is input from the external device
  • a second input unit that receives the partial data received wirelessly, a storage unit that stores the partial data, and the second input unit when the partial data is input to the second input unit.
  • a storage unit that stops storing the partial data input to the two input units and stores the partial data input to the first input unit in the storage unit.
  • the storage device may include the partial data when the partial data is input to the first input unit while the partial data is repeatedly input to the second input unit.
  • An output unit that outputs transmission stop data for instructing to stop the repeated transmission by wireless.
  • the second data is input when the partial data is input to the first input unit while the partial data is repeatedly input to the second input unit.
  • a deletion unit configured to delete the partial data input to the input unit and stored in the storage unit from the storage unit;
  • the first input when the partial data is input to the first input unit while the partial data is repeatedly input to the second input unit, the first input
  • the control program after the version of the control program updated using the update data related to the partial data input to the part is updated using the update data related to the partial data input to the second input part
  • the version of the control program after being updated by using the update data related to the partial data input to the first input unit by the determination unit and the determination unit that determines whether or not the version is the same A second output unit that outputs output request data for requesting output of the remaining partial data constituting the update data to the external device.
  • a communication system stores a partial data that is a part of update data used for updating a control program, and is connected to the storage device and executes the control program.
  • the storage device is detachably connected to an external device, and the partial data is input from the external device, and the portion received wirelessly
  • To stop storing data having a storage unit for storing partial data input to the first input unit in the storage unit, and a transmission unit that transmits the partial data to the processor.
  • the storage method includes a step of storing the received partial data when the partial data that is a part of the update data used for updating the control program is received wirelessly; When the partial data is input by wire while the partial data is repeatedly received wirelessly, the step of stopping storing the partial data received wirelessly, and the partial data is repeatedly received wirelessly And storing the partial data inputted by wire when the partial data is inputted by wire.
  • a computer program stores received partial data in a computer when partial data that is a part of update data used for updating a control program is received wirelessly.
  • the storage device when partial data is input by wire while the partial data received wirelessly is repeatedly input, the data is received wirelessly
  • the storage of the partial data in the storage unit is stopped, and the partial data input by wire is stored in the storage unit. For this reason, an unnecessary update of the control program using update data constituted by a plurality of partial data received wirelessly is prevented.
  • the partial data when partial data is input by wire while the partial data received wirelessly is repeatedly input, the partial data is received wirelessly and stored in the storage unit Delete the partial data from the storage unit.
  • the storage device it is assumed that the partial data is input by wire while the partial data received wirelessly is repeatedly input.
  • the version of the control program after being updated using the update data related to the partial data received wirelessly is updated using the update data related to the partial data input by wire. Determine whether it is the same as the version.
  • the output request data is output to the external device, and the remaining partial data in the plurality of partial data constituting the update data is output to the external device by wire. For this reason, the time required for acquiring update data is short.
  • the storage device transmits partial data to the processing device.
  • the control program is updated using the update data constituted by the plurality of received partial data.
  • FIG. 1 is a block diagram illustrating a main configuration of a communication system 1 according to the first embodiment.
  • the communication system 1 is preferably mounted on a vehicle 100 and includes a relay device 10, ECUs 11 a and 11 b, a connector 12, and a radio device 13.
  • ECUs 11a and 11b, a connector 12 and a radio device 13 are connected to the relay device 10 separately.
  • the connector 12 is detachably connected to the connector 21 connected to the diagnosis tool 20.
  • the diagnostic tool 20 is a portable portable device.
  • the relay device 10 is connected to the diagnosis tool 20.
  • the diagnosis tool 20 and the relay device 10 are disconnected.
  • An electric device (not shown) mounted on the vehicle 100 is connected to each of the ECUs 11a and 11b.
  • Each of the ECUs 11a and 11b has one or a plurality of CPUs (Central Processing Units) (not shown).
  • a control program Pa is stored in the ECU 11a.
  • One or a plurality of CPUs included in the ECU 11a execute a control process that controls the operation of the electrical equipment connected to the ECU 11a by executing the control program Pa.
  • a control program Pb is stored in the ECU 11b.
  • One or a plurality of CPUs included in the ECU 11b execute a control process for controlling the operation of the electrical equipment connected to the ECU 11b by executing the control program Pb.
  • the relay device 10 functions as a storage device.
  • Each of the ECUs 11a and 11b functions as a processing device.
  • ECU11a, 11b each transmits data to the relay apparatus 10.
  • the relay device 10 transmits data received from the ECU 11a to the ECU 11b, and transmits data received from the ECU 11b to the ECU 11a.
  • ECU11a, 11b mutually communicates via the relay apparatus 10, and makes several electric equipment connected to ECU11a, 11b perform a coordinated operation.
  • a protocol corresponding to Ethernet (registered trademark) or a CAN (Controller ⁇ Area Network) protocol or the like is used as a communication protocol.
  • Update data used for updating the control program Pa is composed of Na partial data (see FIG. 10). Therefore, the partial data is a part of the update data. Na is an integer of 2 or more.
  • the partial data includes version information indicating the version of the updated control program Pa and number information indicating the arrangement number in addition to the program information indicating a part of the updated control program Pa. Update data is realized by arranging Na pieces of partial data in the order of arrangement numbers.
  • the relay device 10 repeatedly transmits the partial data to the ECU 11a.
  • the ECU 11a receives the partial data received from the relay device 10, the ECU 11a stores the received partial data.
  • the ECU 11a stores Na partial data, that is, update data
  • the ECU 11a waits until the state of the vehicle 100 becomes a state in which the control program Pa can be updated.
  • the state of the vehicle 100 becomes a state where the control program Pa can be updated
  • the one or more CPUs included in the ECU 11a update the control program Pa using the update data.
  • the state in which the control program Pa can be updated is, for example, a state in which the ignition switch of the vehicle 100 is off.
  • the relay device 10 deletes the partial data when it is no longer necessary to update the control program Pa using the update data related to the transmitted partial data while repeatedly transmitting the partial data to the ECU 11a.
  • the instructing deletion instruction data is transmitted to the ECU 11a.
  • the ECU 11a receives the deletion instruction data, the ECU 11a deletes all the partial data received from the relay device 10.
  • the update data used for updating the control program Pb is composed of Nb partial data.
  • Nb is an integer of 2 or more.
  • the partial data includes version information indicating the version of the updated control program Pb and number information indicating the arrangement number in addition to program information indicating a part of the updated control program Pb.
  • the updating of the control program Pb and the deletion of partial data performed by the ECU 11b are the same as the updating of the control program Pa and the deletion of partial data performed by the ECU 11a. Specifically, in the description of the update of the control program Pa and the deletion of partial data performed by the ECU 11a, the ECU 11a, the control program Pa, and the integer Na are replaced with the ECU 11b, the control program Pb, and the integer Nb, respectively. Thereby, the update of the control program Pb and the deletion of the partial data performed by the ECU 11b can be described.
  • the diagnostic tool 20 has an operation unit (not shown) operated by a user, for example, a dealer.
  • the diagnostic tool 20 operates according to the operation of the operation unit.
  • the diagnosis tool 20 outputs first request data requesting its own authentication to the relay device 10.
  • the first request data includes information such as identification information or a password.
  • the relay device 10 authenticates the diagnosis tool 20 based on information included in the input first request data.
  • the relay device 10 outputs output permission data permitting data output to the diagnosis tool 20.
  • the diagnosis tool 20 outputs various data to the relay device 10 after the output permission data is input. Specifically, the diagnosis tool 20 repeatedly outputs partial data related to the update data of the control program Pa to the relay device 10 via the connectors 21 and 12. Similarly, the diagnosis tool 20 repeatedly outputs partial data related to the update data of the control program Pb to the relay device 10 via the connectors 21 and 12.
  • the wireless device 13 wirelessly receives data from the server 30 installed outside the vehicle 100, the wireless device 13 outputs the received data to the relay device 10. Further, when data is input from the relay device 10, the wireless device 13 wirelessly transmits the input data to the server 30.
  • the server 30 transmits second request data for requesting its own authentication to the wireless device 13.
  • the second request data includes information such as identification information or a password.
  • the wireless device 13 outputs the received second request data to the relay device 10.
  • the relay device 10 authenticates the server 30 based on information included in the input second request data.
  • the relay device 10 When the authentication is successful, the relay device 10 outputs transmission permission data permitting data transmission to the wireless device 13.
  • the wireless device 13 transmits the transmission permission data to the server 30 wirelessly.
  • the server 30 receives the transmission permission data from the wireless device 13
  • the server 30 wirelessly transmits the partial data related to the update data of the control program Pa or the control program Pb to the wireless device 13.
  • the wireless device 13 outputs the received partial data to the relay device 10 each time wirelessly receives the partial data related to the update data of the control program Pa or the control program Pb from the server 30.
  • the server 30 repeatedly transmits the partial data related to the update data of the control program Pa to the wireless device 13 and repeatedly transmits the partial data related to the update data of the control program Pb to the wireless device 13 wirelessly.
  • the relay device 10 outputs transmission stop data instructing the wireless device 13 to stop the repeated transmission of partial data wirelessly.
  • the wireless device 13 wirelessly transmits the input transmission stop data to the server 30.
  • the server 30 receives the transmission stop data from the wireless device 13 while repeatedly transmitting the partial data related to the update data of the control program Pa or the control program Pb to the wireless device 13, the server 30 stops the repeated transmission of the partial data. . Thereafter, the server 30 transmits the second request data to the wireless device 13 again and repeatedly transmits the partial data to the wireless device 13 when the update data transmission condition of the control program Pa or the control program Pb is satisfied. .
  • FIG. 2 is a block diagram showing a main configuration of the relay apparatus 10.
  • the relay device 10 includes two communication units 40a and 40b, a first input / output unit 41, a second input / output unit 42, a storage unit 43, and a control unit 44. These are connected to the internal bus 45.
  • the communication unit 40a is further connected to the ECU 11a.
  • the communication unit 40b is further connected to the ECU 11b.
  • the first input / output unit 41 is further connected to the connector 12.
  • the second input / output unit 42 is further connected to the wireless device 13.
  • the diagnosis tool 20 is connected to the first input / output unit 41.
  • the diagnostic tool 20 and the first input / output unit 41 are also disconnected.
  • the first input / output unit 41 is detachably connected to the diagnostic tool 20.
  • the diagnostic tool 20 corresponds to an external device.
  • the communication unit 40a transmits data to the ECU 11a in accordance with an instruction from the control unit 44.
  • One of the data transmitted from the communication unit 40a to the ECU 11a is partial data related to update data of the control program Pa.
  • the communication unit 40a receives data from the ECU 11a.
  • the communication unit 40b transmits data to the ECU 11b in accordance with an instruction from the control unit 44.
  • One of the data transmitted from the communication unit 40b to the ECU 11b is partial data related to update data of the control program Pb.
  • the communication unit 40b receives data from the ECU 11b.
  • the first input / output unit 41 outputs output permission data to the diagnosis tool 20 via the connectors 12 and 21 in accordance with an instruction from the control unit 44. Further, partial data relating to update data of the control program Pa is repeatedly input from the diagnostic tool 20 to the first input / output unit 41 via the connectors 21 and 12. Similarly, partial data relating to update data of the control program Pb is repeatedly input from the diagnosis tool 20 to the first input / output unit 41 via the connectors 21 and 12.
  • the first input / output unit 41 functions as a first input unit.
  • the second input / output unit 42 outputs transmission permission data and transmission stop data to the wireless device 13 in accordance with an instruction from the control unit 44.
  • the wireless device 13 wirelessly transmits the input data to the server 30.
  • the server 30 starts to repeatedly transmit the partial data related to the update data of the control program Pa or the control program Pb. Furthermore, when the transmission stop data is received from the wireless device 13, the server 30 stops the partial data transmission repeatedly.
  • the second request data received by the wireless device 13 from the server 30 is input to the second input / output unit 42. Furthermore, partial data received wirelessly from the server 30 by the wireless device 13 is repeatedly input from the wireless device 13 to the second input / output unit 42. Therefore, partial data related to the update data of the control program Pa and partial data related to the update data of the control program Pb are input to the second input / output unit 42.
  • the second input / output unit 42 functions as a second input unit.
  • the storage unit 43 is a nonvolatile memory.
  • the control unit 44 stores partial data related to the update data of the control programs Pa and Pb.
  • the storage unit 43 further stores a control program Pr.
  • the control unit 44 has one or a plurality of CPUs.
  • One or more CPUs included in the control unit 44 execute the control program Pr, thereby performing relay processing, tool authentication processing, server authentication processing, first update data storage processing, second update data storage processing, and update data transmission processing. Execute.
  • Each of the first update data storage process, the second update data storage process, and the update data transmission process includes a process related to the control program Pa and a process related to the control program Pb.
  • the control unit 44 executes relay processing, tool authentication processing, server authentication processing, first update data storage processing, second update data storage processing, and update data transmission processing in parallel in a time division manner.
  • the relay process is a process for relaying communication between the ECUs 11a and 11b.
  • the tool authentication process is a process for authenticating the diagnosis tool 20.
  • the server authentication process is a process for authenticating the server 30 communicating with the wireless device 13.
  • the first update data storage process related to the control program Pa is a process of storing the update data of the control program Pa input to the first input / output unit 41 from the diagnostic tool 20.
  • the second update data storage process related to the control program Pa is a process of storing the update data of the control program Pa input to the second input / output unit 42 from the wireless device 13.
  • the update data transmission process related to the control program Pa is a process of transmitting update data related to the control program Pa to the ECU 11a.
  • the first update data storage process related to the control program Pb is a process of storing the update data of the control program Pb input from the diagnosis tool 20 to the first input / output unit 41.
  • the second update data storage process related to the control program Pb is a process of storing the update data of the control program Pb input from the wireless device 13 to the second input / output unit 42.
  • the update data transmission process related to the control program Pb is a process of transmitting update data related to the control program Pb to the ECU 11b.
  • the control program Pr causes one or a plurality of CPUs of the control unit 44 to execute relay processing, tool authentication processing, server authentication processing, first update data storage processing, second update data storage processing, and update data transmission processing. It is a computer program.
  • the control program Pr may be stored in the storage medium E1 so that it can be read by one or a plurality of CPUs included in the control unit 44.
  • the control program Pr read from the storage medium E1 by a reading device (not shown) is stored in the storage unit 43.
  • the storage medium E1 is an optical disk, a flexible disk, a magnetic disk, a magnetic optical disk, a semiconductor memory, or the like.
  • the optical disc is a CD (Compact Disc) -ROM (Read Only Memory), a DVD (Digital Versatile Disc) -ROM, or a BD (Blu-ray (registered trademark) Disc).
  • the magnetic disk is, for example, a hard disk.
  • the control program Pr may be downloaded from an external device (not shown) connected to a communication network (not shown), and the downloaded control program Pr may be stored in the storage unit 43.
  • the control unit 44 executes a relay process.
  • the control unit 44 selects a communication unit that transmits data from the communication units 40a and 40b based on the information included in the received data, and instructs the selected communication unit to transmit the received data. . Accordingly, the communication unit selected by the control unit 44 transmits the received data. After instructing the transmission of the received data, the control unit 44 ends the relay process.
  • the control unit 44 executes the tool authentication process when the first request data is input from the diagnosis tool 20 to the first input / output unit 41.
  • the control unit 44 authenticates the diagnosis tool 20 based on information included in the input first request data.
  • the control unit 44 instructs the first input / output unit 41 to output the output permission data.
  • the first input / output unit 41 outputs the output permission data to the diagnosis tool 20, and the diagnosis tool 20 outputs various data to the first input / output unit 41.
  • the control unit 44 ends the tool authentication process when authentication of the diagnosis tool 20 fails or after instructing output of the output permission data.
  • the control unit 44 executes server authentication processing when the second request data is input from the wireless device 13 to the second input / output unit 42.
  • the control unit 44 authenticates the server 30 based on information included in the input second request data.
  • the control unit 44 instructs the second input / output unit 42 to output transmission permission data.
  • the second input / output unit 42 outputs the transmission permission data to the wireless device 13, and the wireless device 13 transmits the transmission permission data to the server 30.
  • the server 30 starts to repeatedly transmit partial data.
  • the control unit 44 ends the server authentication process.
  • FIG. 3 is a flowchart showing the procedure of the first update data storage process related to the control program Pa.
  • the control unit 44 executes a first update data storage process related to the control program Pa when partial data related to the update data of the control program Pa is input to the first input / output unit 41.
  • the storage unit 43 stores a value of a flag related to the control program Pa (hereinafter referred to as Pa flag).
  • the value of the Pa flag is set to zero or one by the control unit 44.
  • a Pa flag value of zero indicates that the partial data related to the update data of the control program Pa is not repeatedly input from the diagnosis tool 20 to the first input / output unit 41.
  • a Pa flag value of 1 indicates that partial data relating to update data of the control program Pa is repeatedly input from the diagnostic tool 20 to the first input / output unit 41.
  • the control unit 44 sets the value of the Pa flag to 1 (step S1), and the update data of the control program Pa is already stored in the storage unit 43. All the partial data is deleted (step S2).
  • the control unit 44 stores the partial data input to the first input / output unit 41 in the storage unit 43 when the first update data storage process is started (step S3), and updates the control program Pa. It is determined whether or not the partial data related to is input to the first input / output unit 41 (step S4).
  • Step S4 When it is determined that the partial data is not input to the first input / output unit 41 (S4: NO), the control unit 44 executes Step S4, and the partial data related to the update data of the control program Pa is newly added to the first data. Wait until it is input to the input / output unit 41.
  • the control unit 44 stores the partial data input to the first input / output unit 41 in the storage unit 43 (step S5). Then, it is determined whether or not Na partial data related to the update data of the control program Pa is stored in the storage unit 43 (step S6).
  • Step S4 When determining that the Na pieces of partial data are not stored (S6: NO), the control unit 44 executes Step S4, and the partial data related to the update data of the control program Pa is newly added to the first input / output unit 41. Wait again until input.
  • the control unit 44 sets the value of the Pa flag to zero (step S7), and ends the first update data storage process related to the control program Pa. To do.
  • the control unit 44 executes the first update data storage process related to the control program Pa.
  • the control unit 44 deletes all partial data related to the update data of the control program Pa already stored in the storage unit 43 and then is input to the first input / output unit 41.
  • the Na partial data that is, the update data is stored in the storage unit 43.
  • the value of the Pa flag is set to 1 until Na partial data are input to the first input / output unit 41.
  • control unit 44 executes a first update data storage process related to the control program Pb.
  • the storage unit 43 stores a value of a flag related to the control program Pb (hereinafter referred to as a Pb flag).
  • the value of the Pb flag is set to zero or one by the control unit 44. That the value of the Pb flag is zero indicates that the partial data related to the update data of the control program Pb is not repeatedly input from the diagnosis tool 20 to the first input / output unit 41. That the value of the Pb flag is 1 indicates that the partial data related to the update data of the control program Pb is repeatedly input from the diagnosis tool 20 to the first input / output unit 41.
  • the first update data storage process related to the control program Pb is the same as the first update data storage process related to the control program Pa.
  • the first update related to the control program Pb is performed by changing the control program Pa, Pa flag, and integer Na to the control program Pb, Pb flag, and integer Nb, respectively.
  • FIG. 4 is a flowchart showing the procedure of the second update data storage process related to the control program Pa.
  • the control unit 44 executes the second update data storage process related to the control program Pa.
  • the control unit 44 determines whether or not the value of the Pa flag is zero (step S11). As described above, the value of the Pa flag being zero indicates that partial data relating to update data of the control program Pa is not repeatedly input to the first input / output unit 41. A Pa flag value of 1 indicates that partial data related to update data of the control program Pa is repeatedly input to the first input / output unit 41.
  • the control unit 44 determines that the value of the Pa flag is not zero, that is, the value of the Pa flag is 1 (S11: NO)
  • the control unit 44 relates the update data of the control program Pa to the first input / output unit 41. Since the partial data is repeatedly input, the second input / output unit 42 is instructed to output the transmission stop data (step S12). Thereby, the second input / output unit 42 outputs the transmission stop data to the wireless device 13, and the wireless device 13 transmits the transmission stop data to the server 30 wirelessly.
  • the server 30 stops the repeated transmission of the partial data related to the update data of the control program Pa.
  • the control unit 44 stores the partial data input to the second input / output unit 42 when the second update data storage process is started without storing the partial data in the storage unit 43. The second update data saving process is terminated.
  • the control unit 44 When it is determined that the value of the Pa flag is zero (S11: YES), the control unit 44 saves the partial data input to the second input / output unit 42 in the storage unit 43 (step S13), and again the flag It is determined whether or not the value of is zero (step S14). Thereby, the control unit 44 monitors whether or not the diagnosis tool 20 has started outputting partial data related to the update data of the control program Pa.
  • control unit 44 determines that the value of the Pa flag is not zero, that is, the value of the Pa flag is 1 (S14: NO)
  • the control unit 44 executes step S12, and the server 30 updates the control program Pa.
  • the repeated transmission of the partial data related to is stopped.
  • the Pa flag value is set to 1
  • all data stored in the second update data storage process related to the control program Pa is deleted from the storage unit 43. Is done.
  • the control unit 44 determines whether or not the partial data related to the update data of the control program Pa is input to the second input / output unit 42 ( Step S15). When determining that the partial data is not input (S15: NO), the control unit 44 executes Step S14, and the value of the Pa flag is changed to 1, or the update data of the control program Pa Wait until the partial data is input to the second input / output unit 42.
  • the control unit 44 When determining that the partial data has been input (S15: YES), the control unit 44 stores the partial data input to the second input / output unit 42 in the storage unit 43 (step S16), and updates the control program Pa. It is determined whether or not the Na pieces of partial data related to are stored in the storage unit 43 (step S17). When it is determined that the Na partial data are not stored (S17: NO), the control unit 44 executes Step S14, and the value of the Pa flag is changed to 1 again, or the control program Pa It waits until the partial data related to the update data is newly input to the second input / output unit 42. When it is determined that the Na pieces of partial data have been stored (S17: YES), the control unit 44 ends the second update data storage process related to the control program Pa.
  • the control unit 44 executes the second update data storage process related to the control program Pb when the partial data related to the update data of the control program Pb is input from the wireless device 13 to the second input / output unit 42.
  • the second update data storage process related to the control program Pb is the same as the second update data storage process related to the control program Pa.
  • the second update related to the control program Pb is performed by changing the control program Pa, Pa flag, and integer Na to the control program Pb, Pb flag, and integer Nb, respectively.
  • FIG. 5 is a sequence diagram showing an example of the operation of the communication system 1. It is assumed that the diagnosis tool 20 repeatedly outputs partial data related to the update data of the control program Pa to the first input / output unit 41 of the relay device 10.
  • the control unit 44 of the relay apparatus 10 stores the partial data input to the first input / output unit 41 in the storage unit 43 each time partial data is input to the first input / output unit 41.
  • the server 30 transmits partial data related to the update data of the control program Pa to the wireless device 13, and the wireless device 13 outputs this partial data to the second input / output unit 42.
  • the control unit 44 instructs the second input / output unit 42 to output the transmission stop data to the wireless device 13, and the wireless device 13 transmits the transmission stop data to the server 30 wirelessly.
  • the server 30 stops the repeated transmission of the partial data related to the update data of the control program Pa.
  • the diagnosis tool 20 repeatedly outputs the partial data related to the update data of the control program Pa until the output of the Na partial data is completed.
  • the control unit 44 stores Na partial data in the storage unit 43.
  • FIG. 6 is a sequence diagram showing another example of the operation of the communication system 1.
  • the server 30 repeatedly transmits the partial data related to the update data of the control program Pa to the wireless device 13, and the wireless device 13 repeatedly transmits the partial data related to the update data of the control program Pa to the second input / output unit 42 of the relay apparatus 10. Assume that you are outputting.
  • the control unit 44 of the relay device 10 stores the partial data input to the second input / output unit 42 in the storage unit 43 each time partial data is input to the second input / output unit 42.
  • the update of the control program Pa is wired from the diagnostic tool 20 to the first input / output unit 41 of the relay device 10.
  • the control unit 44 deletes all the partial data input from the wireless device 13 to the second input / output unit 42 and stored in the storage unit 43 from the storage unit 43 and input to the second input / output unit 42. Stop saving partial data. Then, the control unit 44 instructs the second input / output unit 42 to output the transmission stop data to the wireless device 13.
  • the wireless device 13 wirelessly transmits the transmission stop data to the server 30, and the server 30 stops the repeated transmission of the partial data related to the update data of the control program Pa.
  • the control unit 44 functions as a deletion unit.
  • the second input / output unit 42 also functions as an output unit.
  • the diagnosis tool 20 repeatedly outputs the partial data related to the update data of the control program Pa until the output of the Na partial data is completed.
  • the control unit 44 inputs the partial data from the diagnostic tool 20 to the first input / output unit 41 by wire. Is stored in the storage unit 43.
  • the control unit 44 also functions as a storage unit.
  • FIG. 6 is an explanation when the partial data output from the wireless device 13 and the diagnostic tool 20 are partial data related to the update data of the control program Pa.
  • the partial data output from the wireless device 13 and the diagnostic tool 20 is partial data related to the update data of the control program Pb
  • the partial data output from the wireless device 13 and the diagnostic tool 20 is updated to the control program Pa.
  • the operation is the same as in the case of partial data related to data.
  • control program corresponding to the partial data input from the diagnostic tool 20 to the first input / output unit 41 and the control program corresponding to the partial data input from the wireless device 13 to the second input / output unit 42 are mutually connected. If they are different, the control unit 44 does not cause the server 30 to stop the repeated transmission of the partial data. That is, the control unit 44 stores the partial data related to the update data of the control program Pa and also stores the partial data related to the update data of the control program Pb.
  • FIG. 7 is a flowchart showing a procedure of update data transmission processing related to the control program Pa.
  • the partial data includes number information indicating the arrangement number.
  • the arrangement number of the partial data related to the update data of the control program Pa is an integer that is 1 or more and Na or less.
  • update data is realized by arranging Na pieces of partial data in the order of arrangement numbers.
  • the partial data whose arrangement number is k (k: natural number) is referred to as the kth partial data.
  • the server 30 sequentially transmits the partial data from the first partial data to the wireless device 13 according to the arrangement number.
  • the diagnostic tool 20 sequentially outputs partial data from the first partial data to the first input / output unit 41 according to the arrangement number.
  • Each of the communication units 40a and 40b sequentially transmits partial data from the first partial data to the ECUs 11a and 11b according to the arrangement number.
  • the control unit 44 executes an update data transmission process related to the control program Pa when the first partial data related to the update data of the control program Pa is stored in the storage unit 43.
  • the control unit 44 instructs the communication unit 40a to transmit the partial data stored in the storage unit 43 (step S21). Thereby, the communication part 40a transmits partial data to ECU11a.
  • the control unit 44 determines whether or not the next partial data relating to the update data of the control program Pa is stored in the storage unit 43 until a predetermined time elapses after the execution of step S21 ( Step S22). For example, when the first partial data is stored, the next partial data is the second partial data.
  • the predetermined time is longer than the time interval at which the server 30 transmits partial data to the wireless device 13, and longer than the time interval at which the diagnostic tool 20 outputs partial data to the first input / output unit 41. Therefore, unless all the partial data is deleted in step S2 of the first update data saving process related to the control program Pa or the saving of Na pieces of partial data is not completed, a predetermined time has elapsed after executing step S212. The next partial data is stored in the storage unit 43 until elapses.
  • Step S21 When it is determined that the next partial data is stored (S22: YES), the control unit 44 executes Step S21, and the communication unit 40a transmits the next partial data to the ECU 11a.
  • Step S23 the control unit 44 determines whether or not Na partial data is transmitted by the communication unit 40a (step S23).
  • control unit 44 deletes update data composed of Na partial data from the storage unit 43 (step S24).
  • control unit 44 instructs the communication unit 40a to transmit the deletion instruction data, assuming that the server 30 has stopped the repeated transmission of the partial data. (Step S25).
  • the communication unit 40a transmits the deletion instruction data to the ECU 11a.
  • the ECU 11a deletes all the partial data transmitted by the communication unit 40a. For this reason, ECU11a does not update control program Pa using the update data which concern on the partial data which the server 30 transmitted.
  • the control unit 44 ends the update data transmission process related to the control program Pa.
  • the control unit 44 executes an update data transmission process related to the control program Pb when the first partial data related to the update data of the control program Pb is stored in the storage unit 43.
  • the update data transmission process related to the control program Pb is the same as the update data transmission process related to the control program Pa.
  • the update data transmission related to the control program Pb is performed by changing the control program Pa, the communication unit 40a, and the integer Na to the control program Pb, the communication unit 40b, and the integer Nb, respectively.
  • the process can be explained.
  • Each of the communication units 40a and 40b functions as a transmission unit.
  • the communication unit 40a (or the communication unit 40b) transmits the partial data to the ECU 11a (or ECU 11b).
  • ECU11a (or ECU11b) preserve
  • the ECUs 11a and 11b delete all the received partial data.
  • the ECU 11a when update data is stored and the state of the vehicle 100 is a state in which the control program Pa (or control program Pb) can be updated, the update is performed.
  • the control program Pa (or control program Pb) is updated using the data.
  • the update using the update data received from the server 30 is executed at an unspecified place with the permission of the occupant of the vehicle 100, and the update using the update data input from the diagnosis tool 20 is performed. This is executed by the dealer operating the operation unit of the diagnostic tool 20 at a store or factory. In consideration of the above, the update using the update data input from the diagnostic tool 20 is more important than the update using the update data received from the server 30.
  • the partial data related to the update data of the control program Pa is received from the diagnostic tool 20 while the partial data related to the update data of the control program Pa is repeatedly input from the wireless device 13 to the second input / output unit 42.
  • the control unit 44 stops storing the partial data input to the second input / output unit 42. Then, the partial data repeatedly input to the first input / output unit 41 is stored. For this reason, unnecessary update of the control program Pa using the update data transmitted from the server 30 to the wireless device 13 is prevented.
  • the control program Pb With respect to the control program Pb, the same effect as described with respect to the control program Pa is obtained.
  • the control unit 44 of the relay device 10 stores the update data in the storage unit 43 and the state of the vehicle 100 is updated. When it is in a state that can be performed, update data transmission processing is executed. In this update transmission process, the control unit 44 instructs the communication unit 40a (or the communication unit 40b) to sequentially transmit the partial data. Each time the ECU 11a (or ECU 11b) receives the partial data, the ECU 11a (or the ECU 11b) partially updates the control program Pa (or the control program Pb) using the received partial data, and deletes the received partial data. The ECU 11a (or ECU 11b) updates the entire control program Pa (or control program Pb) by repeatedly performing partial update and deleting the received partial data.
  • the first input / output unit 41 of the relay apparatus 10 outputs designation data for designating partial data output by the diagnosis tool 20 to the diagnosis tool 20.
  • the designation data designates an arrangement number for the update data of the control program Pa or the control program Pb.
  • the designation data designates the Nath partial data from the 10th partial data constituting the update data of the control program Pa.
  • the diagnosis tool 20 sequentially outputs one or a plurality of partial data designated by the inputted designation data to the first input / output unit 41 when the designation data is inputted.
  • FIG. 8 is a flowchart showing a procedure of first update data storage processing in the second embodiment.
  • the first update data storage process shown in FIG. 8 is a process related to the control program Pa.
  • the control unit 44 executes the first update data storage process related to the control program Pa when the partial data related to the update data of the control program Pa is input to the first input / output unit 41.
  • the partial data includes version information and number information.
  • the version information of the partial data related to the update data of the control program Pa indicates the version of the control program Pa after the update.
  • Steps S31, S33, S34, and S38 to S41 of the first update data storage process in the second embodiment are the same as S1, S2, S3, and S4 to S7. Therefore, a detailed description of steps S31, S33, S34, S38 to S41 is omitted.
  • control unit 44 executes the step S31 and then the part whose version is the same as the version indicated by the version information of the partial data input to the first input / output unit 41 It is determined whether data is stored in the storage unit 43 (step S32).
  • the control unit 44 determines that the version indicated by the version information of the partial data input to the first input / output unit 41 in step S32 is the partial data stored in the storage unit 43, that is, the second input / output unit. It is determined whether or not it is the same as the version indicated by the version information of the partial data input in 42.
  • the control unit 44 also functions as a determination unit.
  • control unit 44 executes steps S33 and S34. Thereby, regarding the update data of the control program Pa, all the partial data already stored in the storage unit 43 is deleted, and the part input to the first input / output unit 41 when starting the first update data storage process Data is stored in the storage unit 43.
  • the control unit 44 designates the remaining partial data not stored in the storage unit 43 among the Na partial data.
  • the first input / output unit 41 is instructed to output designated data to be executed (step S35). As a result, the first input / output unit 41 outputs the designated data.
  • the diagnosis tool 20 sequentially inputs the partial data indicated by the input specified data, that is, the remaining partial data constituting the update data to the first input / output unit 41. Output.
  • the designated data corresponds to output request data for requesting output of the remaining partial data constituting the update data.
  • the first input / output unit 41 also functions as a second output unit.
  • control unit 44 determines that the partial data having the same version is stored, the control unit 44 stores the partial data input to the first input / output unit 41 when the first update data storage process is started. The data is not stored in the unit 43.
  • control unit 44 determines whether one of the partial data designated by the designated data is input to the first input / output unit 41 (step S36). When it is determined that none of the partial data designated by the designated data is input to the first input / output unit 41 (S36: NO), the control unit 44 executes Step S36 again, and the part designated by the designated data Wait until one of the data is input to the first input / output unit 41.
  • step S36 When it is determined that one of the partial data designated by the designated data is input to the first input / output unit 41 (S36: YES), the control unit 44 stores the partial data input to the first input / output unit 41. 43 (step S37). After executing step S34 or step S37, the control unit 44 executes step S38.
  • control unit 44 waits for input of partial data from the diagnostic tool 20 until Na partial data related to the update data of the control program Pa is stored in the storage unit 43.
  • the first update data storage process related to the control program Pb is the same as the first update data storage process related to the control program Pa.
  • the first update related to the control program Pb is performed by changing the control program Pa, Pa flag, and integer Na to the control program Pb, Pb flag, and integer Nb, respectively.
  • FIG. 9 is a sequence diagram illustrating an example of the operation of the communication system 1.
  • the server 30 repeatedly transmits the partial data related to the update data of the control program Pa to the wireless device 13, and the wireless device 13 repeatedly transmits the partial data related to the update data of the control program Pa to the second input / output unit 42 of the relay apparatus 10. Assume that you are outputting.
  • the control unit 44 of the relay device 10 stores the partial data input to the second input / output unit 42 in the storage unit 43 each time partial data is input to the second input / output unit 42.
  • the update of the control program Pa is wired from the diagnostic tool 20 to the first input / output unit 41 of the relay device 10. Assume that partial data related to data is input. In this case, the control unit 44 stops storing the partial data input to the second input / output unit 42 and instructs the second input / output unit 42 to output the transmission stop data to the wireless device 13. Thereby, the server 30 stops the repeated transmission of the partial data related to the update data of the control program Pa.
  • the version indicated by the version information of the partial data input to the first input / output unit 41 is the same as the version indicated by the version information of the partial data input to the second input / output unit 42. It is determined whether or not.
  • the control unit 44 instructs the first input / output unit 41 to output the designated data and performs control.
  • the diagnosis tool 20 is requested to output the remaining partial data constituting the update data of the program Pa.
  • the diagnostic tool 20 sequentially outputs the partial data specified by the input specified data, that is, the remaining partial data to the first input / output unit 41.
  • the diagnosis tool 20 repeatedly outputs the partial data related to the update data of the control program Pa until the storage of the Na partial data is completed.
  • the control unit 44 inputs the partial data from the diagnostic tool 20 to the first input / output unit 41 by wire. Is stored in the storage unit 43.
  • FIG. 10 is a schematic diagram of the configuration of the update data. It is assumed that the version indicated by the version information of the partial data input to the first input / output unit 41 is the same as the version indicated by the version information of the partial data input to the second input / output unit 42. In this case, as shown in FIG. 10, for example, among the Na pieces of partial data constituting the update data, the first to twentieth partial data are composed of partial data input from the wireless device 13, 21 The Nath partial data is composed of partial data input from the diagnosis tool 20. For this reason, in the relay apparatus 10 according to the second embodiment, the time required to acquire update data is short.
  • Each of the communication system 1 and the relay device 10 in the second embodiment has the same effects as the communication system 1 and the relay device 10 in the first embodiment.
  • the control unit 44 when the control unit 44 determines that partial data having the same version is stored, the control unit 44 instructs the first input / output unit 41 to store the partial data. Data for repeatedly stopping output may be output to the diagnosis tool 20 and the processing may be terminated.
  • the diagnosis tool Update data is acquired from the server 30 instead of 20.
  • setting the flag value to 1 determines that partial data with the same version is not stored after the version is determined. Done if you do.
  • the control unit 44 maintains the flag value at zero.
  • the number of ECUs connected to the relay device 10 is not limited to two and may be three or more. Moreover, the structure by which a some communication bus is connected to the relay apparatus 10, and one or some ECU is connected to each communication bus may be sufficient. In this case, the relay device 10 relays communication between an ECU connected to one communication bus and an ECU connected to another communication bus, for example, according to the CAN protocol.
  • control unit 44 stores the partial data input to the second input / output unit 42 regardless of the control program configured by the update data related to the partial data input to the second input / output unit 42. May be stopped.
  • the control program Pa is transferred from the diagnostic tool 20 to the first input / output unit 41.
  • the control unit 44 may stop the storage of the partial data input to the second input / output unit 42. Also in this case, the control unit 44 deletes all the partial data input to the second input / output unit 42 and stored in the storage unit 43, and causes the server 30 to stop the repeated transmission of the partial data.
  • the partial data output by the diagnostic tool 20 and the partial data transmitted by the server 30 are not limited to partial data that is a part of update data used for updating the control programs Pa and Pb.
  • the control of the relay device 10 It may be partial data that is a part of update data used for updating the program Pr.
  • the state of the vehicle 100 is a state in which the control program Pr can be updated, for example, when the ignition switch of the vehicle 100 is off, the control unit 44 executes an update program (not shown). As a result, the control program Pr is updated.
  • An apparatus to which this configuration can be applied is not limited to a relay apparatus that relays communication, and may be any control apparatus that performs control by a CPU executing a control program.

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