EP4073660A1 - Electronic control unit for a motor vehicle, communication network for a motor vehicle and motor vehicle comprising a communication network - Google Patents
Electronic control unit for a motor vehicle, communication network for a motor vehicle and motor vehicle comprising a communication networkInfo
- Publication number
- EP4073660A1 EP4073660A1 EP20817451.6A EP20817451A EP4073660A1 EP 4073660 A1 EP4073660 A1 EP 4073660A1 EP 20817451 A EP20817451 A EP 20817451A EP 4073660 A1 EP4073660 A1 EP 4073660A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electronic control
- control unit
- motor vehicle
- manager
- master
- 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.)
- Withdrawn
Links
- 238000004891 communication Methods 0.000 title claims abstract description 40
- 238000013500 data storage Methods 0.000 claims description 15
- 238000010295 mobile communication Methods 0.000 claims description 14
- 230000004913 activation Effects 0.000 claims description 8
- 230000009849 deactivation Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 description 1
- YNAKLZFMOFNLRE-UHFFFAOYSA-N uce-6 Chemical compound O=C1C2=CC(O)=C(C)C(O)=C2C(=O)C2=C1C=C1C=C(O)C=C(CC(=O)CC(O)C)C1=C2O YNAKLZFMOFNLRE-UHFFFAOYSA-N 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4027—Coupling between buses using bus bridges
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
Definitions
- TITLE Electronic control unit of a motor vehicle, communication network of a motor vehicle and motor vehicle including a communication network
- the present invention relates to on-board communication networks in motor vehicles.
- the invention relates in particular to an electronic control unit for a motor vehicle.
- the invention also relates to a communication network of a motor vehicle and a motor vehicle provided with such a communication network.
- the invention applies to any type of motor vehicle.
- Ethernet frames include labels that allow to distinguish subnets and, with the USB communication protocol, different tunnels can be defined while using the TCP / IP network.
- SSIDs can be used to distinguish subnets
- different identifiers of access points can be used to separate the flow of data in order to connect to different remote servers.
- the invention aims to overcome these drawbacks.
- the object of the invention is in particular to provide a solution to facilitate establishment of communication channels, through subnetworks, between electronic control units of motor vehicles and mobile communication devices, off-board servers, external devices connected by means of cables and / or data carriers removable data storage.
- the invention aims to facilitate any communication between electronic control units of motor vehicles and communicating entities connected in the usual way to communication networks, private or public, and this in particular to allow greater practicality. when implementing tasks for configuring and / or updating electronic control units on board motor vehicles.
- a first interface for communicating by radiofrequency signals with a mobile communication device and / or a disembarked server or a second interface for communicating with a network switch and / or an external device by means of a cable and / or with a removable data storage, the first and / or the second interface being configured so that a communication link with at least one subnet can be established;
- the master sub-network manager being configured to check the compliance of an activation request and / or subnet deactivation transmitted by the mobile communication device, the offloaded server, the external device and / or the removable data storage medium
- the slave subnet manager being configured to retransmit to the master sub-network manager a request to activate and / or deactivate a sub-network received from the mobile communication device, from the off-site server, from the external device and / or from the removable data storage medium.
- the master sub-network manager can be configured to check the conformity of a request for activation and / or deactivation of the sub-network transmitted by a second electronic control unit of the vehicle.
- the cable can allow the transmission of data formatted in accordance with the TCP / IP stack.
- the establishment of a communication link can be based on a routing table recorded on a data storage medium of said electronic control unit.
- the invention also relates to a communication network of a motor vehicle comprising a first electronic control unit as described above and a second electronic control unit as described above, which are connected together. via a network switch, the first electronic control unit comprising a master subnetwork manager and the second electronic control unit comprising a slave subnetwork manager.
- a subject of the invention is also a motor vehicle comprising a communication network as described above.
- FIG. 1 is a functional diagram of a communication network of a motor vehicle according to the invention.
- FIG. 1 A communication network 100 of a motor vehicle according to the invention is illustrated in FIG. 1.
- the latter comprises six electronic control units (UCE1, UCE2, UCE3, UCE4, UCE5, UCE6), interconnected by means of Ethernet links, two network switches 101, 102, as well as SPI (ie Serial Peripheral Interface) links for diagnosing and configuring network switches.
- UCE1, UCE2, UCE3, UCE4, UCE5, UCE6 interconnected by means of Ethernet links, two network switches 101, 102, as well as SPI (ie Serial Peripheral Interface) links for diagnosing and configuring network switches.
- SPI Serial Peripheral Interface
- Each electronic control unit of the communication network is provided with a first interface 103, which makes it possible to communicate by radiofrequency signals with a mobile communication device 200 (eg smartphone) and / or a unloaded server 300, or with a second interface 104, which makes it possible to communicate with a network switch 101, 102 and / or an external device 400 by means of a cable, and / or to communicate with a removable data storage medium (eg a medium portable data storage device or USB key).
- the first interface 103 and / or the second interface 104 is (are) configured so that a communication link with one (or more) particular subnetwork (s) is (are) established, as illustrated in FIG. 1 by the squares numbered from 1 to 5.
- one or more configurable routing tables are recorded on a data storage medium of each electronic control unit.
- the interfaces 103, 104 of the fifth electronic control unit UCE5 are configured to establish a communication link, on one side, between an Ethernet link and sub-networks 1 and 2, and, on the other hand, between a USB communication link (ie USB protocol via TCP / IP) and these same sub-networks.
- the first interface 103 of the fourth electronic control unit UCE4 is configured to establish a communication link between a physical interface allowing communication in Wifi and the subnets 4 and 5, while its second interface 104 is configured to establish a communication link between an Ethernet link and the subnets 2, 3, 4 and 5, so that the mobile communication apparatus 200 can, for example, communicate with the third electronic control unit UCE3 to through the sub-networks 4 and 5.
- the remote configuration capability of electronic control units of motor vehicles made possible by the elements of the invention described above.
- the first electronic control unit of the UCE1 network advantageously comprises a master sub-network manager 105, while the other electronic control units (ie UCE2, UCE3, UCE4, UCE5) each comprise a manager of slave subnetwork 106.
- the master subnetwork manager 105 is configured to check the conformity of a request for activation and / or deactivation of a subnetwork. (ie a request to activate, deactivate and / or replicate one or more subnets) transmitted by the mobile communication device 200, the offloaded server 300, the external device 400, the removable data storage medium and / or , preferably, another electronic control unit.
- the slave subnetwork manager 106 is configured, for its part, to retransmit to the master subnetwork manager 105 a request to activate and / or deactivate the subnetwork received from another electronic control unit, from the mobile communication device 200, the off-board server 300, the external device 400 and / or the removable data storage medium.
- the master network manager 105 and the slave subnetwork manager 106 are advantageously configured to assume several roles.
- the master subnetwork manager 105 is able to supervise all the subnetworks at the vehicle level, to verify predefined conditions for activating, deactivating or mirroring subnetworks and to detect unsatisfactory conditions for activate, disable or mirror subnets.
- the slave network manager 106 is able to manage on-board subnets, for example, Ethernet, USB and Wifi communications, activate / deactivate one or more subnets for different functional needs, activate / deactivate and configure subnetwork replication schemes (ie to copy message frames from one or more subnetworks to a dedicated subnetwork according to functional needs), to supervise their own subnetworks , to report / update its own subnet status to the master subnet manager.
- subnets for example, Ethernet, USB and Wifi communications
- the fourth electronic control unit UCE4 receives, for example, a request for activating a sub-network transmitted by the mobile communication device 200
- its slave sub-network manager 106 initiates a interaction with the master sub-network manager 105 of the first electronic control unit, UCE1, by preferentially transmitting to it the activation and / or deactivation request previously received.
- the master sub-network manager 105 of the first electronic control unit UCE1 checks the conformity of the request received, for example by checking the rights of the communication device 200 to interact with the control units of the vehicle, this verification step being implemented either purely local, that is to say by using resources only resources available at the level of the vehicle, or by interacting with remote computer resources, such as remote servers forming part of a 'cloud computing architectures (ie cloud). Then, when it establishes that the request received satisfies the previously established conditions, aimed in particular at ensuring that the regulatory provisions that apply in terms of cybersecurity in connection with motor vehicles are satisfied, the master sub-network manager 105 authorizes the activation of the sub-network (s) identified in the request. The mobile communication device 200 is then able to communicate with the third electronic control unit UCE3 through the subnetworks 4 and 5.
- a solution is provided to facilitate the establishment of communication channels, through subnetworks, between electronic control units of motor vehicles and mobile communication devices, off-board servers , external devices connected by cables and / or removable data storage media.
- the invention makes it possible to facilitate any communication between electronic control units of motor vehicles and communicating entities connected to communication networks, private or public, in particular for more practical implementation of configuration tasks. and / or updating of electronic control units on board motor vehicles.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Small-Scale Networks (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1914277A FR3104755B1 (en) | 2019-12-12 | 2019-12-12 | Electronic control unit of a motor vehicle, communication network of a motor vehicle and motor vehicle comprising a communication network |
PCT/FR2020/051980 WO2021116545A1 (en) | 2019-12-12 | 2020-11-03 | Electronic control unit for a motor vehicle, communication network for a motor vehicle and motor vehicle comprising a communication network |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4073660A1 true EP4073660A1 (en) | 2022-10-19 |
Family
ID=70978015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20817451.6A Withdrawn EP4073660A1 (en) | 2019-12-12 | 2020-11-03 | Electronic control unit for a motor vehicle, communication network for a motor vehicle and motor vehicle comprising a communication network |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4073660A1 (en) |
FR (1) | FR3104755B1 (en) |
WO (1) | WO2021116545A1 (en) |
-
2019
- 2019-12-12 FR FR1914277A patent/FR3104755B1/en active Active
-
2020
- 2020-11-03 WO PCT/FR2020/051980 patent/WO2021116545A1/en unknown
- 2020-11-03 EP EP20817451.6A patent/EP4073660A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR3104755B1 (en) | 2022-07-22 |
FR3104755A1 (en) | 2021-06-18 |
WO2021116545A1 (en) | 2021-06-17 |
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