EP3881497A1 - Procédé de détermination d'un défaut de fonctionnement d'un noeud communicant d'un réseau de communication embarqué dans un véhicule terrestre à moteur - Google Patents
Procédé de détermination d'un défaut de fonctionnement d'un noeud communicant d'un réseau de communication embarqué dans un véhicule terrestre à moteurInfo
- Publication number
- EP3881497A1 EP3881497A1 EP19813630.1A EP19813630A EP3881497A1 EP 3881497 A1 EP3881497 A1 EP 3881497A1 EP 19813630 A EP19813630 A EP 19813630A EP 3881497 A1 EP3881497 A1 EP 3881497A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- communicating node
- determining
- frames
- previously transmitted
- communication
- 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- Withdrawn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 42
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000007257 malfunction Effects 0.000 title claims abstract description 16
- 238000013500 data storage Methods 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 2
- 238000007726 management method Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/462—LAN interconnection over a bridge based backbone
- H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
Definitions
- TITLE Method for determining a fault in
- the present invention relates to the field of communication systems for land motor vehicles.
- the invention relates in particular to a method for determining a malfunction of a communicating node of an on-board communication network in a land motor vehicle.
- the invention applies in particular to motor vehicles.
- Ethernet protocol does not provide any mechanism capable of determining and signaling when a communicating node experiences a malfunction. This is particularly problematic because it then becomes impossible, for example in the context of an after-sales service, to quickly and effectively diagnose possible malfunctions of the communicating nodes of a communication network on board a land motor vehicle.
- the invention aims to provide a method and a system for overcoming these drawbacks.
- the invention aims in particular to provide a method and a system which make it possible to monitor the operation of the communicating nodes of an on-board communication network in a land motor vehicle in order to facilitate the diagnosis and the management of possible faults of functioning of the communicating nodes.
- the subject of the invention is a method for determining a malfunction of at least one communicating node of a communication network on board a land motor vehicle, said communicating node being configured to transmit frames of communication established according to the Ethernet protocol, the method comprising the steps of:
- the step of determining a number of previously transmitted communication frames can be carried out with regard to a previously established time interval.
- the step of determining a number of previously transmitted communication frames may include a step of extracting a value from a counter referring to said communicating node.
- the step of determining a number of previously transmitted communication frames may include a step of incrementing the counter.
- the invention further relates to a computer system for determining a malfunction of a communicating node of a communication network on board a land motor vehicle, the system comprising means implementing a method such as defined above.
- the system can comprise at least one processor and storage means in which are stored at least one program for the execution of steps according to the determination method implemented by the system.
- the invention further relates to a computer program comprising instructions for the execution of the steps of a method as defined above.
- the invention further relates to a medium usable in a computer on which a program as defined above is recorded.
- the invention further relates to a land motor vehicle comprising a system as defined above.
- FIG. 1 is a block diagram of a determination system according to the invention.
- FIG. 2 is a flowchart illustrating certain steps of a determination method according to the invention.
- the system 100 for determining a malfunction of a communicating node of an on-board communication network in a land motor vehicle comprises an information processing unit 101, comprising one or more processors, a data storage medium 102, input and output means 103 and, optionally, means of communication by radio frequency signals 104.
- the system 100 is embedded in a land motor vehicle, for example a motor vehicle, and is distributed among one or more computers.
- the system 100 comprises one or more computers, one or more servers, one or more supercomputers and / or any combination comprising one of these computer systems. It is also possible to envisage certain embodiments in which certain elements of the system 100 are partially hosted on board a land motor vehicle, on one or more computers, while other elements are distributed on one or more remote servers.
- the system 100 is an integral part of an electronic control unit on board a land motor vehicle (https: // fr. Wikipedia. Org / wiki / Unit% C3% A9_de_commande_% C3 % A91ectronics). All the elements described above contribute to allow the system 100 to implement a method for determining a malfunction of a communicating node of a communication network on board a land motor vehicle, as described below. - below.
- the system 100 receives a communication frame transmitted by the communicating node.
- any communicating node of the communication network according to the invention transmits regularly, for example periodically, communication frames to the system 100.
- the system 100 also regularly transmits communication frames to all the communicating nodes of the network.
- the system 100 determines the number of communication frames previously transmitted by the communicating node.
- the number of previously transmitted communication frames is determined with respect to a preset time interval which precedes the reception of the communication frame produced in the previous step, thus defining a sliding time window which ends at the time of the reception of the communication frame.
- the communication system determines the number of frames previously transmitted by retrieving a value digital of a counter referring to the communicating node stored on the data storage medium 102.
- step 202 also includes a step of incrementing the value of the counter.
- the system 100 records on the data storage medium 102 of said system at minus a datum referring to said communicating node.
- a first preset threshold for example three
- the system 100 stores a parameter or code next to an identifier that unequivocally identifies the communicating node.
- the system 100 generates a series of characters, for example “confirmed operating fault”, which is recorded on the data storage medium 102 opposite the identifier of the communicating node.
- a second threshold for example 17 the system 100 erases from the data storage medium 102 any data referring to the communicating node.
- the system provides a mechanism which ensures that a malfunction can be diagnosed and stored.
- the system also ensures, by judiciously setting the value of the first threshold, that a malfunction which remains momentary is not memorized.
- the system 100 ensures that the operation of a communicating node is considered normal only when the communicating node has transmitted a number of communication frames which is much greater than the number of frames defined by the first threshold for which the system 100 considers that a malfunction exists.
- the system 100 is able to ensure that the functioning of the communicating node is again considered normal only if the number of communication frames received effectively characterizes an operating state deemed normal.
- the functional bricks are provided to enable monitoring of a communication network of a land motor vehicle, in particular an Ethernet network, and, if necessary, memorize malfunctions of the communicating nodes of the network.
- the invention therefore makes it possible to improve diagnostic and management procedures for operating faults linked to communication networks of land motor vehicles.
- the invention is not limited to the embodiments described above, presented only by way of examples, but extends to other embodiments, in particular those formed by combining certain characteristics described in connection with certain embodiments. realization with other characteristics described in connection with other embodiments.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (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 |
---|---|---|---|
FR1871570A FR3088786B1 (fr) | 2018-11-16 | 2018-11-16 | Procede de determination d’un defaut de fonctionnement d’un nœud communicant d’un reseau de communication embarque dans un vehicule terrestre a moteur |
PCT/FR2019/052553 WO2020099751A1 (fr) | 2018-11-16 | 2019-10-25 | Procédé de détermination d'un défaut de fonctionnement d'un nœud communicant d'un réseau de communication embarqué dans un véhicule terrestre à moteur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3881497A1 true EP3881497A1 (fr) | 2021-09-22 |
Family
ID=66166135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19813630.1A Withdrawn EP3881497A1 (fr) | 2018-11-16 | 2019-10-25 | Procédé de détermination d'un défaut de fonctionnement d'un noeud communicant d'un réseau de communication embarqué dans un véhicule terrestre à moteur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3881497A1 (fr) |
CN (1) | CN113039756A (fr) |
FR (1) | FR3088786B1 (fr) |
WO (1) | WO2020099751A1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6519453B2 (ja) * | 2015-11-18 | 2019-05-29 | 株式会社デンソー | 通信システム |
JP2017147680A (ja) * | 2016-02-19 | 2017-08-24 | 日立オートモティブシステムズ株式会社 | 冗長通信システム、および、冗長通信システムの復旧方法 |
US10623291B2 (en) * | 2016-06-20 | 2020-04-14 | Hyundai Motor Company | Operation method of communication node for detecting link errors in network |
-
2018
- 2018-11-16 FR FR1871570A patent/FR3088786B1/fr active Active
-
2019
- 2019-10-25 CN CN201980075205.7A patent/CN113039756A/zh active Pending
- 2019-10-25 WO PCT/FR2019/052553 patent/WO2020099751A1/fr unknown
- 2019-10-25 EP EP19813630.1A patent/EP3881497A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN113039756A (zh) | 2021-06-25 |
WO2020099751A1 (fr) | 2020-05-22 |
FR3088786B1 (fr) | 2022-01-21 |
FR3088786A1 (fr) | 2020-05-22 |
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